CN111620661B - Self-leveling mortar with waterproof and sound insulation functions and construction method - Google Patents
Self-leveling mortar with waterproof and sound insulation functions and construction method Download PDFInfo
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- CN111620661B CN111620661B CN202010562664.2A CN202010562664A CN111620661B CN 111620661 B CN111620661 B CN 111620661B CN 202010562664 A CN202010562664 A CN 202010562664A CN 111620661 B CN111620661 B CN 111620661B
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- 238000009413 insulation Methods 0.000 title claims abstract description 72
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 66
- 238000010276 construction Methods 0.000 title claims abstract description 25
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- 239000000843 powder Substances 0.000 claims abstract description 193
- 229920001971 elastomer Polymers 0.000 claims abstract description 128
- 239000005060 rubber Substances 0.000 claims abstract description 128
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 89
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- 239000000203 mixture Substances 0.000 claims abstract description 69
- 239000000463 material Substances 0.000 claims abstract description 60
- 239000004568 cement Substances 0.000 claims abstract description 50
- 238000002156 mixing Methods 0.000 claims abstract description 23
- 150000004645 aluminates Chemical class 0.000 claims abstract description 19
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 18
- 239000011398 Portland cement Substances 0.000 claims abstract description 17
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000011575 calcium Substances 0.000 claims abstract description 14
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 14
- 239000000126 substance Substances 0.000 claims abstract description 13
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 12
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 94
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 69
- 239000005871 repellent Substances 0.000 claims description 21
- 230000002940 repellent Effects 0.000 claims description 21
- 239000010455 vermiculite Substances 0.000 claims description 17
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- 239000002245 particle Substances 0.000 claims description 16
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- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 15
- 239000003638 chemical reducing agent Substances 0.000 claims description 15
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- 239000003795 chemical substances by application Substances 0.000 claims description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 12
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 12
- 239000000920 calcium hydroxide Substances 0.000 claims description 12
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- 235000011116 calcium hydroxide Nutrition 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 12
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- 239000002518 antifoaming agent Substances 0.000 claims description 10
- 239000006004 Quartz sand Substances 0.000 claims description 7
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 7
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- 239000010410 layer Substances 0.000 description 45
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 14
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- 238000010521 absorption reaction Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
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- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
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- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
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- GLVVKKSPKXTQRB-UHFFFAOYSA-N ethenyl dodecanoate Chemical compound CCCCCCCCCCCC(=O)OC=C GLVVKKSPKXTQRB-UHFFFAOYSA-N 0.000 description 1
- 238000006266 etherification reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- DCNHVBSAFCNMBK-UHFFFAOYSA-N naphthalene-1-sulfonic acid;hydrate Chemical group O.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 DCNHVBSAFCNMBK-UHFFFAOYSA-N 0.000 description 1
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- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/16—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing anhydrite, e.g. Keene's cement
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/182—Underlayers coated with adhesive or mortar to receive the flooring
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
- E04F15/203—Separately-laid layers for sound insulation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
- E04F2290/041—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise
- E04F2290/043—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise with a bottom layer for sound insulation
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A self-leveling mortar with waterproof and sound insulation functions and a construction method thereof comprise a mixture of the following substances: portland cement, aluminate cement, sound insulation mixed sand material, hydrophobic mixed rubber powder, heavy calcium powder, anhydrous gypsum powder and leveling mixed auxiliary agent; 18 to 25 parts of said portland cement per 100 parts by weight of said mixture; from 5 to 7 parts by weight of said aluminate cement per 100 parts by weight of said mixture; 45 to 60 parts of said acoustical sound-insulating mixed sand material per 100 parts by weight of said mixture; 2 to 3 parts of said acoustical sound-insulating mixed sand material per 100 parts by weight of said mixture; 10 to 15 parts of said heavy calcium powder per 100 parts by weight of said mixture; 3 to 5 parts by weight of said anhydrite gypsum powder per 100 parts by weight of said mixture; 1 part of the leveling mixing aid is present per 100 parts by weight of the mixture.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to self-leveling mortar with waterproof and sound insulation functions and a construction method.
Background
The building noise includes both forms of impact sound and air sound, and most of the noise transmitted through the floor slab is impact sound. The impact sound of a building is mainly the noise generated by the vibration generated by the collision of an object with a building structure, and the vibration is transmitted along the building structure and radiated to the surrounding air. In general buildings, a floor is a main building structure generating impact sound, such as door and window switch impact, object falling on the ground, seat dragging, child playing and heel knocking when a person walks on the floor, impact noise is generated.
The floor sound insulation is divided into sound insulation of air transmission and sound insulation generated after physical impact. For a common 120mm cast-in-place concrete floor, the sound barrier of air transmission can reach the relevant national standard, but the sound barrier effect generated after physical impact is poor, and generally speaking, the sound pressure level of impact sound is about 82 dB.
The on-site detection value of the floor impact sound insulation performance of the floor and a partition (between rooms) firstly meets the design requirement, and when the design is not specified clearly, the standard that the relevant regulation in the existing national standard 'civil building sound insulation design Specification' GB50118-2010 is less than or equal to 75dB is met; the prior design has the following schemes:
the scheme is as follows: after waterproof treatment, constructing sound-insulating mortar with the thickness of 30-50mm, a protective layer with the thickness of 30mm, a cement mortar leveling layer with the thickness of 30mm and paving ceramic tiles with the thickness of 12mm on the original structure floor (90-100 mm is reserved from the whole structure floor to the finished paving surface);
scheme II: after waterproof treatment is carried out on the floor surface of the original structure, cement and 108 glue are used for constructing a sound insulation pad with the thickness of 3-5mm, a protective layer with the thickness of 30mm, a cement mortar leveling layer with the thickness of 30mm and a paving ceramic tile with the thickness of 12mm (72-80 mm is reserved from the whole structure floor surface to the completion of paving and pasting);
scheme III: waterproof treatment is carried out on the floor surface of the original structure, and sound insulation coating with the thickness of 3-5mm, a 30mm protective layer, a 30mm cement mortar leveling layer and 12mm paving ceramic tiles are constructed (72-80 mm is reserved from the surface of the whole structure to the completion of paving and pasting);
the scheme of the application is as follows: the waterproof sound-insulation self-leveling mortar with the thickness of 7-15mm and the tile/wood floor with the thickness of 12mm are directly constructed on the floor surface of the original structure (18-25 mm is reserved from the whole structure floor surface to the finished tile laying surface). This new technology has reduced the construction process, shortens construction cycle, saves the cost, greatly guarantees the clear height of floor, promotes the house space.
Disclosure of Invention
The invention aims to provide self-leveling mortar with waterproof and sound insulation functions to solve the problem of thick sound insulation floor layer.
In order to achieve the purpose, the invention adopts the following technical scheme:
in the first aspect of the embodiment of the invention, the self-leveling mortar with waterproof and sound insulation functions,
a mixture comprising: portland cement, aluminate cement, sound insulation mixed sand material, hydrophobic mixed rubber powder, heavy calcium powder, anhydrous gypsum powder and leveling mixed auxiliary agent;
18 to 25 parts of said portland cement per 100 parts by weight of said mixture;
from 5 to 7 parts by weight of said aluminate cement per 100 parts by weight of said mixture;
45 to 60 parts of said acoustical sound-insulating mixed sand material per 100 parts by weight of said mixture;
2 to 3 parts of said acoustical sound-insulating mixed sand material per 100 parts by weight of said mixture;
10 to 15 parts of said heavy calcium powder per 100 parts by weight of said mixture;
3 to 5 parts by weight of said anhydrite gypsum powder per 100 parts by weight of said mixture;
1 part of the leveling mixing aid is present per 100 parts by weight of the mixture.
In one embodiment, the sound-insulating mixed sand material: the graded sand and the vermiculite are mixed together,
70 to 85 parts of the graded sand are present per 100 parts by weight of the sound-insulating mixed sand material;
10 to 30 parts of said vermiculite per 100 parts by weight of said sound insulating mixed sand material;
the graded sand comprises: 40 to 120 mesh quartz sand;
or,
the sound insulation mixed sand material comprises: rubber particles, graded sand and vermiculite,
40 to 50 parts of said rubber particles per 100 parts by weight of said sound-insulating mixed sand mass;
30 to 35 parts of said graded sand are present per 100 parts by weight of said sound insulating mixed sand material;
20 to 25 parts of said vermiculite per 100 parts by weight of said acoustical insulation mixed sand material;
the graded sand comprises: 40 to 120 mesh quartz sand;
or,
the sound insulation mixed sand material comprises: graded sand and hollow glass beads;
70 to 85 parts of the graded sand are present per 100 parts by weight of the sound-insulating mixed sand material;
10 to 30 parts of the hollow glass microspheres are present per 100 parts by weight of the sound-insulating mixed sand material;
the graded sand includes at least one of: quartz sand, river sand, silica sand, standard sand and granite.
In one embodiment, the hydrophobic mixed glue powder comprises: redispersible rubber powder and hydrophobic redispersible rubber powder;
50-60 parts of the redispersible rubber powder exists in every 100 parts by weight of the hydrophobic mixed rubber powder;
40-50 parts of hydrophobic re-dispersible rubber powder exists in every 100 parts by weight of the hydrophobic mixed rubber powder;
or,
the hydrophobic mixed rubber powder comprises: resin powder and hydrophobic type redispersible rubber powder;
50-60 parts of the resin rubber powder exists in every 100 parts by weight of the hydrophobic mixed rubber powder;
40 to 50 parts of the hydrophobic re-dispersible rubber powder exists per 100 parts by weight of the hydrophobic mixed rubber powder.
In one embodiment, the hydrophobic mixed glue powder: hydrophobic re-dispersible glue powder.
Or,
the hydrophobic mixed rubber powder comprises the following components: redispersible rubber powder and a water repellent;
90 to 95 parts of the redispersible rubber powder exist in every 100 parts by weight of the hydrophobic mixed rubber powder;
5 to 10 parts of the water repellent is present per 100 parts by weight of the water repellent mixed rubber powder.
Or,
the hydrophobic mixed rubber powder comprises the following components: resin powder and a water repellent;
90 to 95 parts of the resin rubber powder exists in every 100 parts by weight of the hydrophobic mixed rubber powder;
5 to 10 parts of the water repellent is present per 100 parts by weight of the water repellent mixed rubber powder.
In one embodiment, the aluminate cement includes: high alumina cement, and/or sulphoaluminate cement.
In one embodiment, the leveling mixing aid comprises: high-efficiency water reducing agent, defoaming agent, tartaric acid powder and cellulose;
55-65 parts of the high-efficiency water reducing agent exists per 100 parts by weight of the leveling mixing auxiliary agent;
13 to 17 parts of said defoamer per 100 parts by weight of said leveling mix aid;
13 to 17 parts of said tartaric acid powder per 100 parts by weight of said leveling mixing aid;
from 8 to 12 parts of said cellulose per 100 parts by weight of said leveling mixing aid.
In one embodiment, the leveling mixing aid further comprises: lithium carbonate powder;
8 to 12 parts of said cellulose per 100 parts by weight of said leveling mix aid;
and/or the presence of a gas in the gas,
the self-leveling mortar further comprises: slaked lime powder;
1 part of said slaked lime powder is present per 100 parts by weight of said mixture.
The second aspect of the embodiment of the application provides a construction method based on waterproof and sound-proof self-leveling mortar, which is characterized in that,
polishing a working original base surface, wherein the working original base surface is a floor layer embedded with a pipeline, and the pipeline comprises at least one of the following items: water pipe, strong electric pipe, weak electric pipe, optical fiber line pipe;
cleaning the polished original base surface;
carrying out water mark removing treatment on the cleaned working original basal plane;
spraying an interface agent on the original working base surface;
after the interface agent is dried, constructing self-leveling mortar on the working original base surface to form a sound-insulation waterproof self-leveling layer with the thickness of 7-15 mm; the self-leveling mortar is a mixture of the following substances: portland cement, aluminate cement, sound insulation mixed sand material, hydrophobic mixed rubber powder, heavy calcium powder, anhydrous gypsum powder and leveling mixed auxiliary agent; 18 to 25 parts of said portland cement per 100 parts by weight of said mixture; from 5 to 7 parts by weight of said aluminate cement per 100 parts by weight of said mixture; 45 to 60 parts of said acoustical sound-insulating mixed sand material per 100 parts by weight of said mixture; 2 to 3 parts of said acoustical sound-insulating mixed sand material per 100 parts by weight of said mixture; 10 to 15 parts of said heavy calcium powder per 100 parts by weight of said mixture; 3 to 5 parts by weight of said anhydrite gypsum powder per 100 parts by weight of said mixture; 1 part of said leveling mixing aid is present per 100 parts by weight of said mixture;
and laying a floor on the sound-insulation waterproof self-leveling layer.
In one embodiment, the laying of the floor on the sound-proof, waterproof, self-leveling layer comprises:
after the sound-insulation waterproof self-leveling layer is fixedly formed, coating tile glue on the sound-insulation waterproof self-leveling layer;
and paving tiles on the tile glue.
In one embodiment, the laying of the floor on the sound-proof, waterproof, self-leveling layer comprises:
after the sound-insulation waterproof self-leveling layer is fixedly formed, a foam plastic pad is laid on the sound-insulation waterproof self-leveling layer;
and paving a wood floor on the foamed plastic cushion.
In the self-leveling mortar in the embodiment, the used aggregate is the sound-insulation mixed sand material, and the hydrophobic mixed rubber powder is matched to be mixed according to the proportion in the embodiment, so that the self-leveling mortar has sound-insulation and waterproof performances while the fluidity and the strength are kept. Therefore, when the self-leveling mortar is used for laying the floor, a layer of sound insulation coating and a layer of waterproof coating do not need to be poured additionally, the structure and the construction flow of the floor layer are simplified, and the construction efficiency is improved while the floor layer is thinned.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic flow chart of a construction method based on waterproof and sound-proof self-leveling mortar in an embodiment of the invention;
FIG. 2 is a schematic structural view of a floor structure based on waterproof and sound insulation self-leveling in an embodiment of the present invention;
FIG. 3 is a schematic diagram of a test report based on waterproof and sound-proof self-leveling mortar in the embodiment of the invention;
fig. 4 is a schematic diagram of another test report based on waterproof and sound insulation self-leveling mortar in the embodiment of the invention.
Detailed Description
The present invention will be further described with reference to the following examples, which are preferred embodiments of the present invention.
Example one
One embodiment of the self-leveling mortar with waterproof and sound insulation functions in the embodiment of the application comprises a mixture of the following substances: portland cement, aluminate cement, sound insulation mixed sand material, hydrophobic mixed rubber powder, heavy calcium powder, anhydrous gypsum powder and leveling mixed auxiliary agent;
18 to 25 parts of said portland cement per 100 parts by weight of said mixture;
from 5 to 7 parts by weight of said aluminate cement per 100 parts by weight of said mixture;
45 to 60 parts of said acoustical sound-insulating mixed sand material per 100 parts by weight of said mixture;
2 to 3 parts of said acoustical sound-insulating mixed sand material per 100 parts by weight of said mixture;
10 to 15 parts of said heavy calcium powder per 100 parts by weight of said mixture;
3 to 5 parts by weight of said anhydrite gypsum powder per 100 parts by weight of said mixture;
1 part of the leveling mixing aid is present per 100 parts by weight of the mixture.
The silicate cement is silicate cement clinker which takes calcium silicate as a main mineral, has the advantages of fast strength exertion, high hydration heat, wear resistance and corrosion resistance, is suitable for most building purposes, is slow in setting and hardening and is not easy to be added too much.
The aluminate cement may be high alumina cement, or sulphoaluminate cement, or a mixture of high alumina cement and sulphoaluminate cement.
In particular, the high alumina cement is a hydraulic cementing material which is prepared by using bauxite and lime as raw materials through calcining and grinding and takes aluminate as main mineral components, also called aluminate cement, has the characteristics of high hydraulic activity, rapid hardening, strong sulfate erosion resistance, high temperature resistance and the like, the high alumina cement takes calcium aluminate and alumina as main chemical components, the higher the using amount of the high alumina cement and the larger the water-cement ratio, a series of hydration reactions occur to convert low-density hydration products into high-density non-hydration products, the solid phase molar volume is reduced, the system structure clearance is increased, the compactness is reduced, and the strength is finally reduced, in addition, the silicate cement mainly comprises silicon oxide and also comprises calcium oxide, aluminum oxide and the like, the high alumina cement mainly comprises the calcium aluminate and the aluminum oxide, the calcium aluminate and the aluminum oxide can react with slaked lime or calcium hydroxide or other excitants (such as gypsum) separated out when the cement is hydrated, the formation of hydrated products with gelling properties is not affected by the addition of too little. 1 part of said slaked lime powder is present per 100 parts by weight of said mixture.
The anhydrous gypsum powder is an industrial material and a building material which have wide application, can be used as a cement retarder, has a microporous structure, and therefore has excellent sound insulation, heat insulation and fire resistance.
The main component of the heavy calcium carbonate powder is calcium carbonate, and the heavy calcium carbonate powder has the characteristics of high whiteness, good purity, soft hue, stable chemical components and the like, plays an important role in the building industry, particularly self-leveling, and has very high requirements on whiteness and calcium carbonate content, namely the whiteness requirement is more than or equal to 95 percent, and the calcium carbonate content is more than or equal to 98 percent, so the heavy calcium carbonate powder is required to be added according to the raw material formula components in parts by weight, and the mesh number of the heavy calcium carbonate powder is 325 meshes, so that the production cost can be reduced, and the toughness and the strength of the product can be increased.
The sound insulation mixed sand material in the embodiment of the application is mainly used as aggregate and sound insulation material.
Optionally, the sound insulation mixed sand material comprises: graded sand and vermiculite, 70 to 85 parts of said graded sand being present per 100 parts by weight of said sound insulating mixed sand material; 10 to 30 parts of said vermiculite per 100 parts by weight of said acoustically insulating mixed sand mass.
In another implementation, the sound-insulating mixed sand material: the method comprises the following steps: graded sand and hollow glass beads; 70 to 85 parts of the graded sand are present per 100 parts by weight of the sound-insulating mixed sand material; 10 to 30 parts of the hollow glass microspheres are present per 100 parts by weight of the acoustically insulating mixed sand mass.
In another implementation, the sound-insulating mixed sand material includes: rubber particles, graded sand and vermiculite, the rubber particles being present in an amount of 40 to 50 parts per 100 parts by weight of the sound-insulating mixed sand material; 30 to 35 parts of said graded sand are present per 100 parts by weight of said sound insulating mixed sand material; 20 to 25 parts of said vermiculite per 100 parts by weight of said acoustical insulation mixed sand material; the graded sand comprises: 40 to 120 mesh quartz sand. The rubber particles are produced by processing various waste rubbers, including waste rubber, tourist shoe soles, leftover materials, cable skins, rubber leftover materials, automobile cushion belts, automobile tires and other waste rubber raw materials. The rubber particles in the embodiment of the application can be environment-friendly rubber particles.
Specifically, the vermiculite has expansibility and adsorbability, so that the vermiculite has good water absorption performance and sound insulation performance; and the composite material has the characteristics of heat insulation, fire resistance, freezing resistance, stable chemical property, water insolubility and the like.
The hollow glass beads are high-quality sound insulation materials, the hollow glass beads are novel materials which are developed in recent years and have wide application and excellent performance, the main component of the hollow glass beads is borosilicate, and the hollow glass beads are hollow spheres with the particle size of 10-250 micrometers and the wall thickness of 1-2 micrometers. The product has the advantages of light weight, low heat conduction, high strength, good chemical stability and the like, has oleophilic and hydrophobic properties after special treatment, is very easy to disperse in organic material hollow glass microspheres such as resin and the like, is widely applied to composite materials such as glass fiber reinforced plastics, artificial marble, artificial agate and the like, has obvious weight reduction and sound insulation and heat preservation effects, and ensures that the product has good anti-cracking performance.
The graded sand comprises: 40 to 120 mesh quartz sand.
The graded sand plays roles in framework and filling, has good water permeability and compressive strength, is easy to compact when used as a backfill material when meeting water, is not influenced by underground water and rainwater during construction, can effectively save a construction period, is easy to meet the requirement of compactness by compaction and rolling during backfilling, also has an antifreezing effect, is easy to form a package with slurry, can ensure the compactness of concrete and the strength of the concrete, has large using amount of the graded sand, can effectively reduce the production cost, has excessive or insufficient using amount, can influence the flowability of cement self-leveling, cannot meet the construction requirement, and has the advantages of better meeting the compactness, preventing freezing and damp and soft, and ensuring that the diameter range of the graded sand particles is 0.1-0.4mm according to the size and the using amount of the graded sand particles. Optionally, slaked lime powder may be added to the graded sand in order to increase the strength and stability of the self-leveling layer.
In this application embodiment, in order to make self-leveling mortar have good performances such as fluidity and compactness, the mixed auxiliary agent that makes level needs to be added, and specifically, the mixed auxiliary agent that makes level can include: high-efficiency water reducing agent, defoaming agent, tartaric acid powder and cellulose.
55-65 parts of the high-efficiency water reducing agent exists per 100 parts by weight of the leveling mixing auxiliary agent;
13 to 17 parts of said defoamer per 100 parts by weight of said leveling mix aid;
13 to 17 parts of said tartaric acid powder per 100 parts by weight of said leveling mixing aid;
from 8 to 12 parts of said cellulose per 100 parts by weight of said leveling mixing aid.
The high-efficiency water reducing agent is used for reducing concrete shrinkage, enhancing freeze-thaw resistance and carbonization resistance and preventing alkali aggregate reaction. The efficient water reducing agent contains alkali, when the alkali content is less than or equal to 0.2%, the alkali-aggregate reaction can be effectively prevented, the water reducing agent is a concrete admixture which can reduce the water consumption for mixing under the condition of keeping the slump constant of concrete, the fluidity of a cement self-leveling mixture can be improved, the unit cement consumption is reduced, cement is saved, and the cost is reduced, the efficient water reducing agent is a naphthalene sulfonate water reducing agent, is easy to dissolve in water, has good dispersing effect on a plurality of powder materials such as cement, has a water reducing rate of 25%, has good product stability, does not have the phenomena of layering and precipitation after long-term storage, does not have crystallization precipitation at low temperature, is green and environment-friendly, has good economic benefit, has lower engineering comprehensive manufacturing cost than other types of products, can save a plurality of cement under the same strength condition, and reduces the cost.
The defoaming agent can reduce pores, further increase the compactness of self-leveling and finally improve the self-leveling strength. Specifically, the defoaming agent is a modified silicone oil defoaming agent, the surface activity is strong, the defoaming efficiency is high, the defoaming speed can be accelerated, the viscosity can be reduced, the constructability is improved, the surface of a cured film is smooth and has no bubbles, the defoaming agent is added too much, the reaction period is prolonged, and the production time is prolonged, so that the cost is increased, the adding amount is too small, the defoaming effect is not large, and the product quality is influenced.
The tartaric acid powder is used as a retarder, the fluidity of the tartaric acid powder in the first 20min after the tartaric acid powder is made flat is guaranteed so as to meet the construction requirements, and in order to improve the anti-caking performance of the tartaric acid powder, the fineness of the tartaric acid powder is only required to be 100 meshes of sieve, that is, the mesh number of the tartaric acid powder is more than or equal to 100 meshes.
The cellulose is used as a water retention agent, has good toughness, dispersibility and chemical stability, strong water absorption capacity and very excellent thickening and anti-cracking performance, cannot be added too much, can be layered with a high-efficiency water reducing agent, influences the quality of a self-leveling product, has the viscosity of 300-400cP (Centipoise), is an abbreviation of Centipoise, has a viscosity unit of one hundredth of one poise or Centipoise, namely centiPascal-second, and expresses the self-flow resistance of liquid in order to improve the water retention rate and the film forming property of the self-leveling product, but does not influence the fluidity of the self-leveling product, and has international units of Pa.s and milliPascal-second Pa.s.
Further, the leveling mixing aid further comprises: lithium carbonate powder; from 8 to 12 parts of said cellulose per 100 parts by weight of said leveling mixing aid. The lithium carbonate powder serving as an early strength agent can remarkably accelerate the self-leveling hydration speed, has the functions of reducing water and enhancing and also has the function of accelerating coagulation.
In the embodiment of the application, the waterproof performance of the self-leveling mortar mainly comes from the hydrophobic mixed rubber powder, and the hydrophobic mixed rubber powder mainly comprises two parts, wherein one part is a redispersible material, and the other part is a hydrophobic material.
The redispersible rubber powder is modified emulsion powder obtained by spray drying a vinyl acetate and vinyl versatate or ethylene or acrylic ester binary or ternary copolymer, has good redispersibility, is redispersed into emulsion when contacting with water, has chemical properties completely same as those of the initial emulsion, has the characteristics of extremely high compression shear, shear strength, service life durability and no falling off, cannot be damaged by water after being filmed, thereby increasing the self-leveling cohesion, improving the self-leveling weather resistance and freeze-thaw resistance, preventing self-leveling cracking, starting to expand when bone materials are added into cement, and being a heat release process, along with the continuous increase of temperature, cement shrinkage and aggregate expansion aggravate, the combination of the cement shrinkage and the aggregate is damaged, the cement framework is broken into blocks, thereby causing self-leveling cracking and strength reduction, so the redispersible rubber powder needs to be added according to the weight parts of the raw material formula components, can improve the adhesiveness, breaking strength, plasticity, wear resistance and workability of the modified mixture.
The hydrophobic mixed rubber powder can be realized in the following modes:
the hydrophobic mixed rubber powder comprises: redispersible rubber powder and hydrophobic redispersible rubber powder; the redispersible rubber powder can be RE5010N rubber powder, and the hydrophobic redispersible rubber powder can be watt 8034H rubber powder. The hydrophobic re-dispersible emulsion powder 8034H is water re-dispersible hydrophobic ethylene/vinyl laurate/vinyl chloride terpolymer rubber powder. The main performance of the product is that the tile hydrophobic re-dispersible latex powder 8034H is used as an adhesive and has hydrophobicity, namely, has repellency to water. The hydrophobic re-dispersible emulsion powder 8034H is used mainly in combination with inorganic binding materials such as cement, hydrated lime, water glass or gypsum to make facing mortar, pointing agent, plastering material and building adhesive, or as a sole binding component to make facing mortar, paint, adhesive, etc.
50-60 parts of the redispersible rubber powder exists in every 100 parts by weight of the hydrophobic mixed rubber powder;
40 to 50 parts of the hydrophobic re-dispersible rubber powder exists per 100 parts by weight of the hydrophobic mixed rubber powder.
Secondly, the hydrophobic mixed rubber powder comprises: resin powder and hydrophobic type redispersible rubber powder; specifically, the resin glue powder can be hydroxyethyl cellulose, the hydroxyethyl cellulose is used as a nonionic surfactant, the nonionic surfactant has the functions of thickening, suspending, adhering, floating, forming a film, dispersing, retaining water and providing protective colloid, the hydroxyethyl cellulose can be prepared into nonionic cellulose ether through a series of etherification, and the nonionic cellulose ether is odorless, tasteless and nontoxic white powder or particles, can be dissolved in cold water to form a transparent viscous solution, and is not influenced by a pH value in the dissolving process. The modified starch has the characteristics of thickening, bonding, dispersing, emulsifying, film forming, suspending, absorbing, surface activity, keeping moisture, resisting salt and the like, and can replace redispersible rubber powder in building materials.
50-60 parts of the resin rubber powder exists in every 100 parts by weight of the hydrophobic mixed rubber powder;
40 to 50 parts of the hydrophobic re-dispersible rubber powder exists per 100 parts by weight of the hydrophobic mixed rubber powder.
Thirdly, hydrophobic mixed rubber powder: hydrophobic re-dispersible glue powder. The scheme is a pure hydrophobic re-dispersible rubber powder, and the hydrophobic mixed rubber powder is more expensive than the re-dispersible rubber powder in practical application, so the scheme of hundred percent hydrophobic re-dispersible rubber powder is more expensive. In particular, the tile hydrophobic re-dispersible latex powder 8034H is doped to improve the adhesiveness, the bending strength, the plasticity, the wear resistance and the construction performance. By alkali activation, it can impart a significant and long-lasting water repellency to building materials and greatly reduce the water absorption of the materials.
Fourthly, the hydrophobic mixed rubber powder: redispersible rubber powder and a water repellent; specifically, the water repellent can be seal water repellent. The Seal80 water repellent is a high-efficiency hydrophobic powder additive for cement-based mortar, improves the long-term water resistance of the cement-based mortar, and is particularly suitable for occasions requiring hydrophobicity and body impermeability. The water repellency is linear, so the addition amount can be easily adjusted. The wetting property can not be changed after the water-soluble polyurethane emulsion is mixed with water, and the air entraining and the coagulation delaying effects are not generated. Has no side effect on surface hardness, bonding strength and compressive strength.
90 to 95 parts of the redispersible rubber powder exist in every 100 parts by weight of the hydrophobic mixed rubber powder;
5 to 10 parts of the water repellent is present per 100 parts by weight of the water repellent mixed rubber powder.
Fifthly, the hydrophobic mixed rubber powder: resin powder and a water repellent;
90 to 95 parts of the resin rubber powder exists in every 100 parts by weight of the hydrophobic mixed rubber powder;
5 to 10 parts of the water repellent is present per 100 parts by weight of the water repellent mixed rubber powder.
An exemplary specific application ratio (the following numerical unit is "gram") of the self-leveling mortar with waterproof and sound insulation functions comprises:
220 parts of portland cement, 70 parts of high-alumina cement, 500 parts of graded sand, 100 parts of vermiculite, 15 parts of redispersible rubber powder, 12 parts of hydrophobic redispersible rubber powder, 150 parts of coarse whiting powder, 50 parts of anhydrous gypsum powder, 6 parts of a high-efficiency water reducing agent, 1.5 parts of a defoaming agent, 1.7 parts of tartaric acid powder, 1 part of lithium carbonate powder, 1 part of cellulose and 10 parts of hydrated lime.
Another exemplary specific application ratio (the following numerical unit is "gram") of the self-leveling mortar with waterproof and sound insulation functions includes:
220 parts of portland cement, 70 parts of high-alumina cement, 359.8 parts of graded sand, 100 parts of vermiculite, 15 parts of redispersible rubber powder, 12 parts of hydrophobic redispersible rubber powder, 2 parts of a hydrophobic agent, 150 parts of coarse whiting powder, 50 parts of anhydrous gypsum powder, 6 parts of a high-efficiency water reducing agent, 1.5 parts of a defoaming agent, 1.7 parts of tartaric acid powder, 1 part of lithium carbonate powder, 1 part of cellulose and 10 parts of hydrated lime.
Another exemplary specific application ratio (the following numerical unit is "gram") of the self-leveling mortar with waterproof and sound insulation functions includes:
220 parts of portland cement, 70 parts of high-alumina cement, 209.8 parts of graded sand, 100 parts of vermiculite, 150 parts of rubber particles, 15 parts of redispersible rubber powder, 12 parts of hydrophobic redispersible rubber powder, 2 parts of a hydrophobic agent, 150 parts of coarse whiting powder, 50 parts of anhydrous gypsum powder, 6 parts of a high-efficiency water reducing agent, 1.5 parts of an antifoaming agent, 1.7 parts of tartaric acid powder, 1 part of lithium carbonate powder, 1 part of cellulose and 10 parts of slaked lime.
In the self-leveling mortar in the embodiment, the used aggregate is the sound-insulation mixed sand material, and the hydrophobic mixed rubber powder is matched to be mixed according to the proportion in the embodiment, so that the self-leveling mortar has sound-insulation and waterproof performances while the fluidity and the strength are kept. Therefore, when the self-leveling mortar is used for laying the floor, a layer of sound insulation coating and a layer of waterproof coating do not need to be poured additionally, the structure and the construction flow of the floor layer are simplified, and the construction efficiency is improved while the floor layer is thinned.
Example two
Referring to fig. 1, in an embodiment of the present application, an embodiment of a construction method based on waterproof and sound-proof self-leveling mortar based on the self-leveling mortar includes:
101. polishing the original base surface of the work;
polishing a working original base surface, wherein the working original base surface is a floor layer embedded with a pipeline, and the pipeline comprises at least one of the following items: water pipe, high voltage tube, low voltage tube, optical fiber line pipe.
In the embodiment of the present application,
102. cleaning the polished original base surface;
specifically, the polished work original base surface can be cleaned by a high-pressure water gun.
103. Carrying out water mark removing treatment on the cleaned working original basal plane;
after the original working base surface is cleaned, water marks are generated on the original working base surface, which may affect subsequent self-leveling construction, and therefore, the original working base surface needs to be subjected to water mark removing treatment.
104. Spraying an interface agent on the original working base surface;
the interfacial agent is formed by treating the surface of the object, which may be physically acting adsorption or coating, and often also by physicochemical action. The aim is to improve or completely modify the physico-technical properties and surface chemical properties of the material surface.
Illustratively, the interface agent can be sprayed on the working original base surface twice, so that the adhesion effect of the working original base surface to the self-leveling mortar is better.
105. And after the interface agent is dried, constructing self-leveling mortar on the original working base surface to form a sound-insulation waterproof self-leveling layer with the thickness of 7-15 mm.
The self-leveling mortar is a mixture of the following substances: portland cement, aluminate cement, sound insulation mixed sand material, hydrophobic mixed rubber powder, heavy calcium powder, anhydrous gypsum powder and leveling mixed auxiliary agent; 18 to 25 parts of said portland cement per 100 parts by weight of said mixture; from 5 to 7 parts by weight of said aluminate cement per 100 parts by weight of said mixture; 45 to 60 parts of said acoustical sound-insulating mixed sand material per 100 parts by weight of said mixture; 2 to 3 parts of said acoustical sound-insulating mixed sand material per 100 parts by weight of said mixture; 10 to 15 parts of said heavy calcium powder per 100 parts by weight of said mixture; 3 to 5 parts by weight of said anhydrite gypsum powder per 100 parts by weight of said mixture; 1 part of the leveling mixing aid is present per 100 parts by weight of the mixture.
Specifically, in the embodiment of the present application, reference may be made to the first embodiment for components or proportions of the self-leveling mortar, and details are not described here.
106. And laying a floor on the sound-insulation waterproof self-leveling layer.
For example, if the laid floor is a tile, after the sound-proof and waterproof self-leveling layer is fixed and formed, tile glue is firstly coated on the sound-proof and waterproof self-leveling layer, and then tiles are laid on the tile glue. As shown in fig. 2. One embodiment of a waterproof and sound insulating self-leveling based floor structure in an embodiment of the present application, comprises: the composite material sequentially comprises the following composite layer structures:
a floor layer 10 having embedded conduits, the conduits comprising at least one of: water pipe, strong electric pipe, weak electric pipe, optical fiber line pipe;
the waterproof and sound-insulation self-leveling layer 20 comprises a sound-insulation mixed sand material and hydrophobic mixed rubber powder, and the thickness is 7-15 mm;
the floor tile glue layer 30 is coated on the glue body of the waterproof and sound-insulation self-leveling layer;
the floor tile layer 40 is formed by splicing a plurality of tiles.
For example, if the laid floor is a wood floor, after the sound-proof and waterproof self-leveling layer is fixed and formed, a foam plastic cushion is firstly laid on the sound-proof and waterproof self-leveling layer, and then the wood floor is laid on the foam plastic cushion.
In the prior art, the pipes are generally laid over the floor level, and cement mortar is then poured around the pipes to level out the extra thickness (typically 2 to 4 cm) caused by the laying of the pipes. In order to increase the sound insulation and waterproof effects for the floor, a sound insulation coating and a waterproof coating are coated on the floor layer, so that the thickness of the floor structure is further increased. And finally if tiles are to be laid on the floor structure, additional levelling (e.g. an additional layer of self-levelling mortar) is required. This results in a very thick floor structure in the prior art, which is not conducive to saving floor space.
In the embodiment of the application, the used self-leveling mortar has 3 functions of sound insulation, water prevention and leveling, and after the self-leveling mortar with the thickness of 7-15mm is paved, the requirements of sound insulation, water prevention, leveling layer flatness, strength and the like in the existing building standard can be met simultaneously. The design method of using cement mortar to fill and level the thickness of the pipeline in the prior art becomes unnecessary, and can promote that the pipeline structure is embedded in a floor layer in the design of building the floor layer, so that the subsequent self-leveling mortar can be directly constructed on the floor layer of the embedded pipeline, the thickness only needs 7-15mm, the effects of sound insulation, water resistance and strength of a multilayer ground paving structure (a sound insulation coating, a waterproof coating, a cement mortar layer and the like) with the thickness of 30-50mm in the prior art can be achieved, and the thickness of the ground paving structure is greatly reduced.
In the modern real estate market with precious land, assuming that the thickness of one floor can be reduced by 5 cm, 2.5m more space can be provided under the floor height of 50 floors, namely, one more floor of building can be built under the same floor space, thereby generating great value.
In addition, in the construction scheme of this application embodiment, because the pipeline is embedded on the floor layer, therefore the floor layer surface all is smooth structure to floor layer simple structure is favorable to the intelligent construction of mechanical automation in the future, greatly improves the efficiency of construction.
Test example
Referring to fig. 3, the self-leveling mortar according to the formulation of the self-leveling mortar in the embodiment of the present application was tested for fluidity, setting time and strength after setting, and the test results are shown in fig. 3.
The self-leveling mortar in the embodiment of the application has the fluidity loss of 2mm in 30 minutes, and meets the requirement that the industrial standard is less than or equal to 3 mm.
The initial setting time and the final setting time of the self-leveling mortar in the embodiment of the application are respectively 2.1h and 2.3h, and the requirements of the industry standard of being more than or equal to 1h and less than or equal to 6h are met respectively.
The self-leveling mortar in the embodiment of the application obtains results of 2.9MPa and 7.7MPa respectively in 24-hour bending resistance and compression resistance tests, and meets the requirements of the industry standard of being more than or equal to 2.5MPa and more than or equal to 6.0MPa respectively. In the oven dry anti-fracture, oven dry compression resistance and oven dry tensile bonding tests, the obtained results are respectively 10.15Mpa, 28.1Mpa and 1.59Mpa, and the requirements of the industry standard of being more than or equal to 7.5Mpa, more than or equal to 20Mpa and more than or equal to 1Mpa are respectively met.
In the test of the shrinkage rate after setting, the self-leveling mortar in the embodiment of the application has the shrinkage rate of-0.04% and meets the requirement that the industrial standard is less than or equal to 0.05%.
Referring to fig. 4, according to the formulation of the self-leveling mortar in the examples of the present application, the tensile bond strength, dimensional change rate, pit impact resistance, 28d flexural strength and abrasion resistance of the self-leveling mortar were tested, and the test results are shown in fig. 4.
According to an industrial standard JC/T985-2017, the inspection result of the tensile bonding strength of the self-leveling mortar in the embodiment of the application is 1.6MPa, and the requirement that the industrial standard is more than or equal to 1MPa is met.
According to an industrial standard JC/T985-2017, the inspection result of the size change rate of the self-leveling mortar in the embodiment of the application is-0.04%, and the requirement that the industrial standard is more than-0.15% and less than 0.15% is met.
According to an industrial standard JC/T985-2017, the inspection result of the impact resistance of the self-leveling mortar in the embodiment of the application is that no crack or no separation from the bottom plate exists, and the self-leveling mortar meets the requirements.
According to the industrial standard GB/T17671-1999, the inspection result of the 28d flexural strength of the self-leveling mortar in the embodiment of the application is 4.8Mpa, and the requirement that the industrial standard is more than or equal to 4Mpa is met.
According to the industry standard JC/T985-2017, the inspection result of the wear resistance of the self-leveling mortar in the embodiment of the application is 116mm3Meets the industrial standard of less than or equal to 800mm3The requirements of (1). The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. The self-leveling mortar with the waterproof and sound insulation functions is characterized by comprising a mixture of the following substances: portland cement, aluminate cement, sound insulation mixed sand material, hydrophobic mixed rubber powder, heavy calcium powder, anhydrous gypsum powder and leveling mixed auxiliary agent;
18 to 25 parts of said portland cement per 100 parts by weight of said mixture;
from 5 to 7 parts by weight of said aluminate cement per 100 parts by weight of said mixture;
45 to 60 parts of said acoustical sound-insulating mixed sand material per 100 parts by weight of said mixture;
2 to 3 parts of the hydrophobic mixed rubber powder exists in every 100 parts by weight of the mixture;
10 to 15 parts of said heavy calcium powder per 100 parts by weight of said mixture;
3 to 5 parts by weight of said anhydrite gypsum powder per 100 parts by weight of said mixture;
1 part of said leveling mixing aid is present per 100 parts by weight of said mixture;
wherein,
the sound insulation mixed sand material comprises: rubber particles, graded sand and vermiculite,
40 to 50 parts of said rubber particles per 100 parts by weight of said sound-insulating mixed sand mass;
30 to 35 parts of said graded sand are present per 100 parts by weight of said sound insulating mixed sand material;
20 to 25 parts of said vermiculite per 100 parts by weight of said acoustical insulation mixed sand material;
the graded sand comprises: 40 to 120 mesh quartz sand;
the hydrophobic mixed rubber powder comprises: redispersible rubber powder and hydrophobic redispersible rubber powder;
50-60 parts of the redispersible rubber powder exists in every 100 parts by weight of the hydrophobic mixed rubber powder;
40-50 parts of hydrophobic re-dispersible rubber powder exists in every 100 parts by weight of the hydrophobic mixed rubber powder;
or,
the hydrophobic mixed rubber powder comprises: resin powder and hydrophobic type redispersible rubber powder;
50-60 parts of the resin rubber powder exists in every 100 parts by weight of the hydrophobic mixed rubber powder;
40 to 50 parts of the hydrophobic re-dispersible rubber powder exists per 100 parts by weight of the hydrophobic mixed rubber powder.
2. The self-leveling mortar having waterproof and soundproof functions according to claim 1,
the hydrophobic mixed rubber powder comprises the following components: hydrophobic re-dispersible glue powder;
or,
the hydrophobic mixed rubber powder comprises the following components: redispersible rubber powder and a water repellent;
90 to 95 parts of the redispersible rubber powder exist in every 100 parts by weight of the hydrophobic mixed rubber powder;
5 to 10 parts of water repellent exists in every 100 parts by weight of the water repellent type mixed rubber powder;
or,
the hydrophobic mixed rubber powder comprises the following components: resin powder and a water repellent;
90 to 95 parts of the resin rubber powder exists in every 100 parts by weight of the hydrophobic mixed rubber powder;
5 to 10 parts of the water repellent is present per 100 parts by weight of the water repellent mixed rubber powder.
3. The self-leveling mortar with waterproof and soundproof functions according to claim 1, wherein the aluminate cement includes: high alumina cement, and/or sulphoaluminate cement.
4. The self-leveling mortar having waterproof and soundproof functions according to claim 1,
the leveling mixing aid comprises: high-efficiency water reducing agent, defoaming agent, tartaric acid powder and cellulose;
55-65 parts of the high-efficiency water reducing agent exists per 100 parts by weight of the leveling mixing auxiliary agent;
13 to 17 parts of said defoamer per 100 parts by weight of said leveling mix aid;
13 to 17 parts of said tartaric acid powder per 100 parts by weight of said leveling mixing aid;
from 8 to 12 parts of said cellulose per 100 parts by weight of said leveling mixing aid.
5. The self-leveling mortar having waterproof and soundproof functions according to claim 4,
the leveling mixing aid further comprises: lithium carbonate powder;
8 to 12 parts of said cellulose per 100 parts by weight of said leveling mix aid;
and/or the presence of a gas in the gas,
the self-leveling mortar further comprises: slaked lime powder;
1 part of said slaked lime powder is present per 100 parts by weight of said mixture.
6. A construction method based on waterproof and sound-proof self-leveling mortar is characterized in that,
polishing a working original base surface, wherein the working original base surface is a floor layer embedded with a pipeline, and the pipeline comprises at least one of the following items: water pipe, strong electric pipe, weak electric pipe, optical fiber line pipe;
cleaning the polished original base surface;
carrying out water mark removing treatment on the cleaned working original basal plane;
spraying an interface agent on the original working base surface;
after the interface agent is dried, constructing self-leveling mortar on the working original base surface to form a sound-insulation waterproof self-leveling layer with the thickness of 7-15 mm; the self-leveling mortar is a mixture of the following substances: portland cement, aluminate cement, sound insulation mixed sand material, hydrophobic mixed rubber powder, heavy calcium powder, anhydrous gypsum powder and leveling mixed auxiliary agent; 18 to 25 parts of said portland cement per 100 parts by weight of said mixture; from 5 to 7 parts by weight of said aluminate cement per 100 parts by weight of said mixture; 45 to 60 parts of said acoustical sound-insulating mixed sand material per 100 parts by weight of said mixture; 2 to 3 parts of said acoustical sound-insulating mixed sand material per 100 parts by weight of said mixture; 10 to 15 parts of said heavy calcium powder per 100 parts by weight of said mixture; 3 to 5 parts by weight of said anhydrite gypsum powder per 100 parts by weight of said mixture; 1 part of said leveling mixing aid is present per 100 parts by weight of said mixture; wherein,
the sound insulation mixed sand material comprises: rubber particles, graded sand and vermiculite,
40 to 50 parts of said rubber particles per 100 parts by weight of said sound-insulating mixed sand mass;
30 to 35 parts of said graded sand are present per 100 parts by weight of said sound insulating mixed sand material;
20 to 25 parts of said vermiculite per 100 parts by weight of said acoustical insulation mixed sand material;
the graded sand comprises: 40 to 120 mesh quartz sand;
the hydrophobic mixed rubber powder comprises: redispersible rubber powder and hydrophobic redispersible rubber powder;
50-60 parts of the redispersible rubber powder exists in every 100 parts by weight of the hydrophobic mixed rubber powder;
40-50 parts of hydrophobic re-dispersible rubber powder exists in every 100 parts by weight of the hydrophobic mixed rubber powder;
or,
the hydrophobic mixed rubber powder comprises: resin powder and hydrophobic type redispersible rubber powder;
50-60 parts of the resin rubber powder exists in every 100 parts by weight of the hydrophobic mixed rubber powder;
40 to 50 parts of the hydrophobic re-dispersible rubber powder exists per 100 parts by weight of the hydrophobic mixed rubber powder.
7. The construction method based on the waterproof and sound-proof self-leveling mortar of claim 6, wherein the laying of the floor on the sound-proof and waterproof self-leveling layer comprises the following steps:
after the sound-insulation waterproof self-leveling layer is fixedly formed, coating tile glue on the sound-insulation waterproof self-leveling layer;
and paving tiles on the tile glue.
8. The construction method based on the waterproof and sound-proof self-leveling mortar of claim 6, wherein the laying of the floor on the sound-proof and waterproof self-leveling layer comprises the following steps:
after the sound-insulation waterproof self-leveling layer is fixedly formed, a foam plastic pad is laid on the sound-insulation waterproof self-leveling layer;
and paving a wood floor on the foamed plastic cushion.
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| CN112010624A (en) * | 2020-09-08 | 2020-12-01 | 广东博智林机器人有限公司 | Cement-based self-leveling mortar and preparation method thereof |
| CN112240085B (en) * | 2020-10-21 | 2022-03-11 | 广东博智林机器人有限公司 | Method for paving ceramic tiles |
| CN113135708A (en) * | 2021-04-07 | 2021-07-20 | 福建省建研工程检测有限公司 | Self-leveling light sound insulation mortar prepared from waste rubber |
| CN113735529B (en) * | 2021-10-18 | 2022-08-16 | 云南昌保高速公路建设开发有限公司 | Hydrophobic bubble mixed light soil |
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