CN111606649A - Solid waste heat conduction self-leveling mortar and preparation method and application thereof - Google Patents
Solid waste heat conduction self-leveling mortar and preparation method and application thereof Download PDFInfo
- Publication number
- CN111606649A CN111606649A CN201910354143.5A CN201910354143A CN111606649A CN 111606649 A CN111606649 A CN 111606649A CN 201910354143 A CN201910354143 A CN 201910354143A CN 111606649 A CN111606649 A CN 111606649A
- Authority
- CN
- China
- Prior art keywords
- heat conduction
- phosphogypsum
- solid waste
- waste heat
- leveling mortar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 39
- 239000002910 solid waste Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims abstract description 53
- 239000000843 powder Substances 0.000 claims abstract description 51
- 239000002893 slag Substances 0.000 claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 34
- 239000010959 steel Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 239000004816 latex Substances 0.000 claims abstract description 12
- 229920000126 latex Polymers 0.000 claims abstract description 12
- -1 retarder Substances 0.000 claims abstract description 12
- 238000000498 ball milling Methods 0.000 claims abstract description 11
- 238000001354 calcination Methods 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 238000011049 filling Methods 0.000 claims abstract description 8
- 239000004568 cement Substances 0.000 claims abstract description 6
- 239000013530 defoamer Substances 0.000 claims abstract 3
- 239000002518 antifoaming agent Substances 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052582 BN Inorganic materials 0.000 claims description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 238000004064 recycling Methods 0.000 abstract description 4
- 239000011426 gypsum mortar Substances 0.000 description 14
- 239000002253 acid Substances 0.000 description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 9
- 239000004205 dimethyl polysiloxane Substances 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 9
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 9
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 9
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 9
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 9
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 239000002131 composite material Substances 0.000 description 8
- 239000010440 gypsum Substances 0.000 description 7
- 229910052602 gypsum Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 5
- 239000001509 sodium citrate Substances 0.000 description 5
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000006004 Quartz sand Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000004566 building material Substances 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- 235000012255 calcium oxide Nutrition 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- 235000012241 calcium silicate Nutrition 0.000 description 2
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical compound [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 description 2
- 239000001433 sodium tartrate Substances 0.000 description 2
- 229960002167 sodium tartrate Drugs 0.000 description 2
- 235000011004 sodium tartrates Nutrition 0.000 description 2
- 229910021534 tricalcium silicate Inorganic materials 0.000 description 2
- 235000019976 tricalcium silicate Nutrition 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 244000050053 Rosa multiflora Species 0.000 description 1
- 235000000656 Rosa multiflora Nutrition 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- WETINTNJFLGREW-UHFFFAOYSA-N calcium;iron;tetrahydrate Chemical compound O.O.O.O.[Ca].[Fe].[Fe] WETINTNJFLGREW-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 239000010450 olivine Substances 0.000 description 1
- 229910052609 olivine Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229910052611 pyroxene Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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
- C04B28/142—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 synthetic or waste calcium sulfate cements
- C04B28/143—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 synthetic or waste calcium sulfate cements the synthetic calcium sulfate being phosphogypsum
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
- C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
- C04B7/21—Mixtures thereof with other inorganic cementitious materials or other activators with calcium sulfate containing activators
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
-
- 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
- C04B2111/60—Flooring materials
- C04B2111/62—Self-levelling compositions
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A solid waste heat conduction self-leveling mortar and a preparation method and application thereof. The preparation raw materials of the solid waste heat conduction self-leveling mortar comprise phosphogypsum and steel slag, and do not comprise cement. The preparation method comprises the following steps: mixing the phosphogypsum and the steel slag, calcining and ball-milling; and mixing the ball-milled phosphogypsum, the steel slag, aggregate, retarder, defoamer, water-retaining agent, water reducing agent, redispersible latex powder and optional heat conduction material. The self-leveling mortar has good strength, fluidity and thermal conductivity, can be used for gap filling and upper-layer covering of a floor heating pipeline, greatly saves the raw material cost of a floor heating system, and realizes resource recycling of two solid wastes, namely phosphogypsum and steel slag.
Description
Technical Field
The invention relates to the field of inorganic building materials, in particular to solid waste heat conduction self-leveling mortar and a preparation method and application thereof.
Background
Phosphogypsum is an industrial byproduct generated in the production of phosphoric acid, and the generation amount of the phosphogypsum is rapidly increased in recent years, but the utilization rate is low, so that the stockpiling amount is huge. The accumulation of the phosphogypsum not only occupies a large amount of land resources, but also causes certain harm to the surrounding environment. Meanwhile, the gypsum resources are exhausted day by day, and if the comprehensive utilization of the phosphogypsum can be realized, the problem caused by phosphogypsum stockpiling can be solved, and sufficient raw materials can be provided for future gypsum building materials. Therefore, the comprehensive utilization of the phosphogypsum is urgently realized.
The ground radiation heating (floor heating) system has the advantages of good thermal stability, energy conservation, high efficiency, high safety performance, no indoor area occupation and the like, gradually replaces the traditional wall-mounted heating mode in recent years, is gradually popularized and applied in residential buildings, and has a wide market. The ground heating pipeline gap filling and the upper layer covering need floor mortar materials, and the self-leveling mortar materials can automatically level by means of the flowing characteristics of fluid, are quickly dried, and save materials and labor.
If gypsum-based self-leveling mortar which can be used for filling gaps of floor heating pipelines and covering upper layers can be produced by using the solid waste phosphogypsum with rich resources, the raw material cost of a floor heating system can be greatly saved, the solid waste phosphogypsum is consumed, and the economic and social effects are obvious. However, no report on the production of gypsum-based self-leveling mortars using phosphogypsum has been found at present.
Disclosure of Invention
The inventor of the application finds that the strong acidity of the phosphogypsum can bring adverse effects to products produced by the phosphogypsum, thereby limiting the comprehensive utilization of the phosphogypsum.
The inventor of the application also finds that the discharge amount of the slag generated in the production process of the metallurgical industry of China is remarkable in recent years, the accumulated stock of the Chinese slag is about 10 hundred million tons, and the problems of processing and resource utilization of the slag are more and more emphasized. The mineral composition of steel slag is complex, and mainly comprises: tricalcium silicate, dicalcium silicate, calcium ferrite, multiflora rose pyroxene, olivine, RO phase, free calcium oxide, etc. The steel slag has strong alkalinity, and the contents of tricalcium silicate and dicalcium silicate are more, so that the steel slag has hydraulic gelation similar to portland cement clinker.
The self-leveling mortar has good strength, fluidity and thermal conductivity, can be used for gap filling and upper-layer covering of a floor heating pipeline, greatly saves the raw material cost of a floor heating system, and realizes resource recycling of two solid wastes, namely phosphogypsum and steel slag.
The application provides solid waste heat conduction self-leveling mortar, and raw materials for preparing the solid waste heat conduction self-leveling mortar comprise phosphogypsum and steel slag and do not comprise cement.
In the examples of the present application, the steel slag may be added in an amount of 15 to 30 parts by weight, based on 100 parts by weight of the added amount of the phosphogypsum.
In the embodiment of the application, the raw materials for preparing the solid waste heat conduction self-leveling mortar can also comprise heat conduction materials.
In embodiments of the present application, the thermally conductive material may be selected from any one or more of aluminum oxide, zinc oxide, silicon carbide, carbon nanotubes, aluminum nitride, and boron nitride.
In the examples of the present application, the thermally conductive material may be added in an amount of 5 to 10 parts by weight, based on 100 parts by weight of the added amount of the phosphogypsum.
In the embodiment of the application, the raw materials for preparing the solid-waste heat-conducting self-leveling mortar further comprise aggregate, a retarder, a defoaming agent, a water-retaining agent, a water-reducing agent and redispersible latex powder, wherein the addition amount of the phosphogypsum is 100 parts by weight, the addition amount of the aggregate is 20-30 parts by weight, the addition amount of the retarder is 0.06-0.1 part by weight, the defoaming agent is 0.06-0.12 part by weight, the addition amount of the water-retaining agent is 0.06-0.12 part by weight, the addition amount of the water-reducing agent is 0.03-0.08 part by weight, and the addition amount of the redispersible latex powder is 0.2-0.7 part by weight.
In the embodiments of the present application, the aggregate may be selected from aggregates commonly used in the art, for example, blast furnace slag powder, quartz sand, and the like.
In embodiments of the present application, the retarder may be selected from retarders commonly used in the art, for example, sodium citrate, citric acid, sodium tartrate, and the like.
In the embodiments herein, the antifoaming agent may be selected from antifoaming agents commonly used in the art, for example, polydimethylsiloxane and the like.
In the examples herein, the water retaining agent may be selected from water retaining agents commonly used in the art, for example, hydroxypropyl methyl cellulose ether and the like.
In embodiments herein, the water reducer may be selected from water reducers commonly used in the art, for example, polycarboxylic acid water reducers and the like.
The application also provides a preparation method of the solid waste heat conduction self-leveling mortar, which comprises the following steps:
mixing the phosphogypsum and the steel slag, calcining and ball-milling; and
mixing the phosphogypsum subjected to ball milling with steel slag, aggregate, retarder, defoaming agent, water-retaining agent, water reducing agent, redispersible latex powder and optional heat conduction material.
In the embodiment of the present application, the temperature of the calcination may be 130-150 ℃ and the time may be 0.5-1 hour.
In the embodiment of the application, the Brinell specific surface area of the ball-milled phosphogypsum and steel slag can be 4000-5500cm2/g。
The application also provides the application of the solid waste heat conduction self-leveling mortar in the gap filling and upper covering of the floor heating pipeline.
The method takes the strongly acidic phosphogypsum and the alkaline solid waste steel slag as main materials, and utilizes the phosphogypsum and the alkaline solid waste steel slag to perform acid-base neutralization to obtain a relatively neutral composite cementing material, and simultaneously fully utilizes the hydration gelatinization property, the high-hardness wear resistance and the heat conductivity of the steel slag of the phosphogypsum and the alkaline solid waste steel slag to obtain the gypsum-based self-leveling mortar with excellent heat conductivity under the condition of not adding cement at all, and the mortar can be used for gap filling and upper-layer cladding of a floor heating pipeline. Therefore, the method not only greatly saves the raw material cost of the floor heating system, but also realizes the resource recycling of the phosphogypsum and the steel slag which are two solid wastes.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. Other advantages of the application may be realized and attained by the instrumentalities and methods described in the specification and claims.
Detailed Description
Hereinafter, embodiments of the present application will be described in detail to make objects, technical solutions and advantages of the present application more apparent. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The phosphogypsum adopted in the following examples is from a phosphorus industry company of Wuhan, steel slag powder and blast furnace slag are from a steel company of Hunan, and other raw materials are common commercial products.
Example 1
1000g of phosphogypsum (pH value is 3.0) and 300g of steel slag powder (pH value is 9.5) are mixed, calcined at the temperature of 150 ℃ for 0.5 hour, and then ball milled in a ball mill for 1 hour to obtain the phosphogypsum with the pH value of about 6.5 and the specific surface area of 5500cm2Adding 200g of 40-mesh blast furnace slag powder, 0.6g of sodium citrate, 1.0g of polydimethylsiloxane, 0.6g of hydroxypropyl methyl cellulose ether, 0.6g of polycarboxylic acid water reducing agent and redispersible latex powder into the composite powder material7g of the gypsum slurry was sufficiently mixed to obtain a gypsum mortar powder.
Example 2
1000g of phosphogypsum (pH value is 3.0) and 250g of steel slag powder (pH value is 9.5) are mixed, calcined at the temperature of 150 ℃ for 0.5 hour, and then ball milled in a ball mill for 1 hour to obtain the phosphogypsum with the pH value of about 6.5 and the specific surface area of 5500cm2And adding 200g of 40-mesh quartz sand, 100g of alumina powder with the particle size of 50-100nm, 0.8g of sodium citrate, 1.0g of polydimethylsiloxane, 1.0g of hydroxypropyl methyl cellulose ether, 0.5g of polycarboxylic acid water reducing agent and 5g of redispersible emulsion powder into the composite powder material per gram, and fully mixing to obtain the gypsum mortar powder.
Example 3
Mixing 1000g phosphogypsum (pH value is 3.0) and 250g steel slag powder (pH value is 9.5), calcining at 130 deg.C for 1 hr, and ball milling in ball mill for 1 hr to obtain phosphogypsum with pH value of about 6.0 and specific surface area of 5000cm2And adding 250g of 40-mesh blast furnace slag powder, 80g of silicon carbide powder with the particle size of 50-100nm, 0.8g of citric acid, 1.2g of polydimethylsiloxane, 1.0g of hydroxypropyl methyl cellulose ether, 0.3g of polycarboxylic acid water reducing agent and 5g of redispersible latex powder into the composite powder material per gram, and fully mixing to obtain the gypsum mortar powder.
Example 4
Mixing 1000g phosphogypsum (pH value is 3.0) with 200g steel slag powder (pH value is 9.5), calcining at 130 deg.C for 0.5 hr, and ball milling in ball mill for 1 hr to obtain phosphogypsum with pH value of about 5.8 and specific surface area of 4500cm2And adding 300g of 40-mesh blast furnace slag powder, 100g of zinc oxide powder with the particle size of 50-100nm, 1.0g of citric acid, 0.6g of polydimethylsiloxane, 1.2g of hydroxypropyl methyl cellulose ether, 0.8g of polycarboxylic acid water reducing agent and 5g of redispersible latex powder into the composite powder material per gram, and fully mixing to obtain the gypsum mortar powder.
Example 5
Mixing 1000g phosphogypsum (pH value is 3.0) with 150g steel slag powder (pH value is 9.5), calcining at 140 deg.C for 0.5 hr, and ball milling in ball mill for 1 hr to obtain phosphogypsum with pH value of about 5.5 and specific surface area of 4000cm2The composite powder material per gram is added into a 40-mesh blast furnace300g of slag powder, 0.6g of tartaric acid, 1.0g of polydimethylsiloxane, 1.0g of hydroxypropyl methyl cellulose ether, 0.5g of polycarboxylic acid water reducing agent and 5g of redispersible latex powder are fully mixed to obtain the gypsum mortar powder.
Example 6
Mixing 1000g phosphogypsum (pH value is 3.0) with 150g steel slag powder (pH value is 9.5), calcining at 140 deg.C for 0.5 hr, and ball milling in ball mill for 1 hr to obtain phosphogypsum with pH value of about 5.5 and specific surface area of 4000cm2And adding 300g of 40-mesh blast furnace slag powder, 50g of carbon nano tube with the particle size of 50-100nm, 0.6g of sodium tartrate, 1.0g of polydimethylsiloxane, 1.0g of hydroxypropyl methyl cellulose ether, 0.5g of polycarboxylic acid water reducing agent and 2g of redispersible latex powder into the composite powder material per gram, and fully mixing to obtain the gypsum mortar powder.
Comparative example 1
Mixing 1000g phosphogypsum (pH value is 3.0) with 10g quicklime, calcining at 140 deg.C for 1 hr, and ball milling in ball mill for 1 hr to obtain phosphogypsum with pH value of 6.0 and specific surface area of 5500cm2And adding 300g of 40-mesh blast furnace slag powder, 0.6g of sodium citrate, 1.0g of polydimethylsiloxane, 0.8g of hydroxypropyl methyl cellulose ether, 0.5g of polycarboxylic acid water reducing agent and 5g of redispersible emulsion powder into the composite powder material per gram, and fully mixing to obtain the gypsum mortar powder.
Comparative example 2
Mixing 1000g phosphogypsum (pH value is 3.2) with 10g quicklime, calcining at 150 deg.C for 0.5 hr, and ball milling in ball mill to obtain phosphogypsum with pH value of about 6.5 and Boehringer specific surface area of 4000cm2And adding 100g of cement, 200g of 40-mesh quartz sand, 0.8g of sodium citrate, 1.0g of polydimethylsiloxane, 1.0g of hydroxypropyl methyl cellulose ether, 0.5g of polycarboxylic acid and 5g of redispersible emulsion powder into the powder per gram, and fully mixing to obtain the gypsum mortar powder.
Performance testing
Testing the flow property, setting time, strength and shrinkage rate of the self-leveling mortar prepared from the gypsum mortar powder prepared in the embodiment and the comparative example according to the building material industry standard JC/T1023-2007 gypsum-based self-leveling mortar of the people's republic of China; the thermal conductivity of the self-leveling mortar prepared from the gypsum mortar powders prepared in the above examples and comparative examples was measured by using a flat plate heat flow meter method according to the national standard GB/T10295-2008 "heat flow meter method for measuring the steady-state thermal resistance and related characteristics of a heat insulating material" and ASTM C518-04 "test method for measuring the steady-state heat flux and heat transfer characteristics by using the heat flow meter method". The test results are shown in table 1.
TABLE 1
It can be seen that the self-leveling mortar prepared from the gypsum mortar powder in the embodiment of the application has fluidity loss, setting time, strength and shrinkage rate similar to or better than those of the self-leveling mortar prepared from the gypsum mortar powder in the comparative example, and all meet the requirements of JC/T1023-2007, so that the introduction of the steel slag and the heat conduction material has no adverse effect on the performance of the mortar, and the ardealite and the steel slag can completely replace cement, thereby reducing the production cost and realizing the resource recycling of solid wastes. In addition, as can be seen from comparison of examples 1 and 5 with comparative examples 1 to 2, the addition of the steel slag powder can obviously improve the thermal conductivity coefficient of the mortar, and further, as can be seen from comparison of examples 1 to 6 with comparative examples 1 to 2, the addition of the heat conduction material can further improve the thermal conductivity coefficient of the mortar, so that the thermal conductivity of the gypsum mortar of the embodiment of the application is obviously superior to that of the gypsum mortar of the comparative examples, and further the phosphogypsum self-leveling mortar of the embodiment of the application can be used for gap filling and upper cladding of floor heating pipelines.
Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.
Claims (10)
1. The solid waste heat conduction self-leveling mortar is characterized in that raw materials for preparing the solid waste heat conduction self-leveling mortar comprise phosphogypsum and steel slag, and cement is not included.
2. The solid waste heat conduction self-leveling mortar of claim 1, wherein the addition amount of the steel slag is 15-30 parts by weight based on 100 parts by weight of the added phosphogypsum.
3. The solid waste heat conduction self-leveling mortar according to claim 1, wherein the raw materials for preparing the solid waste heat conduction self-leveling mortar further comprise a heat conduction material.
4. The solid waste heat conduction self-leveling mortar of claim 3, wherein the heat conduction material is selected from any one or more of aluminum oxide, zinc oxide, silicon carbide, carbon nanotubes, aluminum nitride and boron nitride.
5. The solid waste heat conduction self-leveling mortar according to claim 3, wherein the addition amount of the heat conduction material is 5-10 parts by weight based on 100 parts by weight of the added phosphogypsum.
6. The solid waste heat conduction self-leveling mortar according to any one of claims 1 to 5, wherein the preparation raw materials of the solid waste heat conduction self-leveling mortar further comprise aggregate, retarder, defoamer, water retention agent, water reducing agent and redispersible latex powder, and based on 100 parts by weight of the added phosphogypsum, the added amount of the aggregate is 20 to 30 parts by weight, the added amount of the retarder is 0.06 to 0.1 part by weight, the defoamer is 0.06 to 0.12 part by weight, the added amount of the water retention agent is 0.06 to 0.12 part by weight, the added amount of the water reducing agent is 0.03 to 0.08 part by weight, and the added amount of the redispersible latex powder is 0.2 to 0.7 part by weight.
7. The preparation method of the solid waste heat conduction self-leveling mortar according to any one of claims 1 to 6, wherein the preparation method comprises the following steps:
mixing the phosphogypsum and the steel slag, calcining and ball-milling; and
mixing the phosphogypsum subjected to ball milling with steel slag, aggregate, retarder, defoaming agent, water-retaining agent, water reducing agent, redispersible latex powder and optional heat conduction material.
8. The preparation method as claimed in claim 7, wherein the calcination is carried out at a temperature of 130-150 ℃ for 0.5-1 hour.
9. The preparation method as claimed in claim 7, wherein the Bosch specific surface area of the ball-milled phosphogypsum and steel slag is 4000-5500cm2/g。
10. The application of the solid waste heat conduction self-leveling mortar in floor heating pipeline gap filling and upper layer covering according to any one of claims 1-6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354143.5A CN111606649A (en) | 2019-04-29 | 2019-04-29 | Solid waste heat conduction self-leveling mortar and preparation method and application thereof |
| PCT/CN2019/103405 WO2020220542A1 (en) | 2019-04-29 | 2019-08-29 | Ardealite self-leveling mortar, and preparation method therefor and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354143.5A CN111606649A (en) | 2019-04-29 | 2019-04-29 | Solid waste heat conduction self-leveling mortar and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111606649A true CN111606649A (en) | 2020-09-01 |
Family
ID=72197555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910354143.5A Pending CN111606649A (en) | 2019-04-29 | 2019-04-29 | Solid waste heat conduction self-leveling mortar and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111606649A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113135731A (en) * | 2021-05-19 | 2021-07-20 | 上海三棵树防水技术有限公司 | Special gypsum-based self-leveling mortar for indoor floor heating and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5617959A (en) * | 1979-07-25 | 1981-02-20 | Osaka Cement | Manufacture of high strength mortar and concrete |
| CN102491717A (en) * | 2011-11-21 | 2012-06-13 | 武汉理工大学 | Gypsum-base concrete with performances of sugaring resistance and carbonization resistance, and preparation method thereof |
| CN103274659A (en) * | 2013-05-13 | 2013-09-04 | 武汉理工大学 | Ardealite-based self-leveling material |
| CN105645898A (en) * | 2015-12-30 | 2016-06-08 | 上海每天节能环保科技股份有限公司 | Modified gypsum-based self-leveling mortar and preparation and application thereof |
| CN107324746A (en) * | 2017-07-19 | 2017-11-07 | 刘少伟 | A kind of new gravity flowing levelling mortar and its production technology |
| CN108129122A (en) * | 2018-01-16 | 2018-06-08 | 四川华邦保和涂料有限公司 | A kind of preparation method of phosphorus paring stone cream base lightweight gravity flowing levelling mortar |
| CN108238752A (en) * | 2016-12-23 | 2018-07-03 | 武汉纺织大学 | A kind of heat accumulation concrete based on high hydroscopic resin and preparation method thereof |
-
2019
- 2019-04-29 CN CN201910354143.5A patent/CN111606649A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5617959A (en) * | 1979-07-25 | 1981-02-20 | Osaka Cement | Manufacture of high strength mortar and concrete |
| CN102491717A (en) * | 2011-11-21 | 2012-06-13 | 武汉理工大学 | Gypsum-base concrete with performances of sugaring resistance and carbonization resistance, and preparation method thereof |
| CN103274659A (en) * | 2013-05-13 | 2013-09-04 | 武汉理工大学 | Ardealite-based self-leveling material |
| CN105645898A (en) * | 2015-12-30 | 2016-06-08 | 上海每天节能环保科技股份有限公司 | Modified gypsum-based self-leveling mortar and preparation and application thereof |
| CN108238752A (en) * | 2016-12-23 | 2018-07-03 | 武汉纺织大学 | A kind of heat accumulation concrete based on high hydroscopic resin and preparation method thereof |
| CN107324746A (en) * | 2017-07-19 | 2017-11-07 | 刘少伟 | A kind of new gravity flowing levelling mortar and its production technology |
| CN108129122A (en) * | 2018-01-16 | 2018-06-08 | 四川华邦保和涂料有限公司 | A kind of preparation method of phosphorus paring stone cream base lightweight gravity flowing levelling mortar |
Non-Patent Citations (1)
| Title |
|---|
| 张秀芳等编著: "《建筑砂浆技术解读470问》", 31 August 2009, 中国建材工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113135731A (en) * | 2021-05-19 | 2021-07-20 | 上海三棵树防水技术有限公司 | Special gypsum-based self-leveling mortar for indoor floor heating and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103288410B (en) | Alpha high-strength gypsum based self-leveling material prepared by adopting phosphogypsum and production process thereof | |
| CN104108918B (en) | A kind of high-performance cement based self-leveling mortar | |
| CN105645898A (en) | Modified gypsum-based self-leveling mortar and preparation and application thereof | |
| CN110746165A (en) | Ocean engineering repair mortar and preparation method thereof | |
| KR101809485B1 (en) | Ultra rapid harding,high early strength waterproof and mothproof mortar composition | |
| WO2020220542A1 (en) | Ardealite self-leveling mortar, and preparation method therefor and application thereof | |
| CN103992078B (en) | A kind of gravity flowing levelling mortar being mixed with phosphorus slag powder | |
| CN106800401B (en) | A gypsum-based self-leveling mortar with molybdenum tailings as filler | |
| CN104909596B (en) | High efficiency composite expanding agent for high-strength self-stressing concrete filled steel tube and preparation method thereof | |
| CN112851284A (en) | Gypsum self-leveling mortar for ground heating backfill and preparation method thereof | |
| CN103159447B (en) | Composition and its preparation method and use | |
| KR101758174B1 (en) | Crack reducing composition for concrete and concrete composition comprising the same | |
| CN108821716A (en) | A kind of ardealite base anticracking grout for wall insulation system | |
| CN111606648B (en) | Gypsum-based heat-conducting self-leveling mortar and preparation method and application thereof | |
| CN102701705B (en) | Light high-strength masonry material for thin mortar joints and preparation method thereof | |
| CN103342530A (en) | Cement-based self-leveling mortar | |
| CN110642579A (en) | Marine sulphoaluminate cement for rapid construction and preparation method thereof | |
| CN109231940A (en) | A kind of cement-based self-leveling alignment material | |
| CN106747173A (en) | A kind of self-leveling cement basic ring protects terrace mortar | |
| CN111606651A (en) | Heat-conducting gypsum self-leveling mortar and preparation method and application thereof | |
| CN106348709A (en) | Foaming heat-conducting gypsum-based self- leveling floor tile materials | |
| CN103553450B (en) | A kind of lightweight self-compacting concrete and preparation method thereof | |
| CN110510946A (en) | A kind of β ardealite based self-leveling mortar and preparation method thereof | |
| CN110451840B (en) | Composite type compacting agent | |
| CN103771801B (en) | Dry-mixed ground mortar mixed with Bayer process red mud and its application method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200901 |