CN114804916A - Lightweight and high-specific-strength foam concrete and preparation method thereof - Google Patents
Lightweight and high-specific-strength foam concrete and preparation method thereof Download PDFInfo
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- CN114804916A CN114804916A CN202210367541.2A CN202210367541A CN114804916A CN 114804916 A CN114804916 A CN 114804916A CN 202210367541 A CN202210367541 A CN 202210367541A CN 114804916 A CN114804916 A CN 114804916A
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- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- 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
- C04B2111/40—Porous or lightweight materials
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- 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
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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- 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
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to light-weight and high-specific-strength foam concrete and a preparation method thereof, belonging to the technical field of concrete preparation. The light and high specific strength foam concrete comprises the following components in parts by weight: 280 parts of cement 220-140 parts, 11-14 parts of silica fume, 22-28 parts of fly ash, 4.5-7.8 parts of physical foaming agent, 2.2-5.6 parts of fiber, 0.2-0.5 part of foam stabilizer, 0.2-1.5 parts of water repellent and 140 parts of water 110-140 parts. The dry density of the light and high specific strength foam concrete prepared according to the proportion in the invention<700kg/m 3 The compressive strength is more than or equal to 5.0 MPa. According to the invention, the stability of bubbles is improved by controlling the dilution ratio and the foaming rate of the foaming agent, so that the pores in the foam concrete are more uniform; the strength of the foam concrete is enhanced by adopting fibers, silica fume and fly ash. In addition, the invention improves the condition that the actual water-gel ratio is larger than the designed water-gel ratio caused by neglecting the water content in the foam in the experimental process, so that the density of the foam is controlled moreAnd (4) adding accurately.
Description
Technical Field
The invention relates to the technical field of concrete preparation, in particular to light-weight high-specific-strength foam concrete and a preparation method thereof.
Background
In recent years, foam concrete is used as a novel lightweight porous environment-friendly building material, and is more and more widely applied to various fields of actual building engineering due to the advantages of high specific strength, fire resistance, heat insulation, sound absorption, energy consumption, shock absorption and the like, and the research on the foam concrete is more and more. At present, most of the research on the foam concrete is focused on the density of 800kg/m 3 The density of the foam concrete is less than 800kg/m 3 The research on the ultra-light foam concrete is less. And in part to reduce the density (general density) of the foamed concrete<300kg/m 3 ) In the aspect of research, expected results are obtained, but at the cost of sacrificing the strength, the strength of the obtained foam concrete is basically less than 1MPa, the requirement on the strength in actual engineering is difficult to meet, and the development of the foam concrete is limited. Dry density 500kg/m 3 The following foam concrete has low strength even lower than 1Mpa, which is difficult to meet the requirement on strength in practical application and limits the development of the foam concrete.
Compared with common concrete, the foam concrete contains a large amount of pores inside. Due to the existence of the pores, the density of the foam concrete is reduced, the characteristic of light weight is endowed, but the strength is reduced, and the light weight and the high strength have inevitable contradiction. Generally, as the porosity increases, the density of the foam concrete decreases and the strength decreases. The shape, size and distribution of the pores are decisive for the strength at the same porosity. Research shows that under the condition of the same porosity, the foam concrete with fine and uniform holes is larger, and the strength of the foam concrete with dispersed holes is higher.
According to JGJT 341-2014 foam concrete preparation application technical specification-modified, the amount of each raw material component (cement, water, foam, admixture) can be calculated according to the designed dry density of the foam concrete, but most people neglect the water contained in the foam in the calculation process using the specification. According to the practical experimental results, the water in the foam part is not considered, so that the prepared slurry is too thin, and the prepared finished product is slow in forming, low in strength and incapable of reaching the designed dry density.
The order of the components added during the preparation of the foamed concrete slurry has certain influence on the performance of the finished product and the surrounding environment, such as dust generation during the stirring process and defoaming (foam breaking) during the preparation of the slurry, which means that the order of the experimental material addition needs to be considered. The defoaming phenomenon in the preparation process of the foam concrete easily causes uneven distribution of pores in the final finished product, so that the strength of the finished product is obviously reduced.
Disclosure of Invention
One of the purposes of the invention is to provide light-weight high-specific-strength foam concrete which meets the high-specific-strength requirement in the light-weight field.
In order to achieve the purpose, the invention adopts the following technical scheme: a light-weight high-specific-strength foam concrete is composed of the following components in parts by weight: 280 parts of cement 220-plus, 11-14 parts of silica fume, 22-28 parts of fly ash, 4.5-7.8 parts of physical foaming agent, 2.2-5.6 parts of fiber, 0.2-0.5 part of foam stabilizer, 0.2-1.5 parts of water repellent and 140 parts of water 110-plus.
The concrete is further improved as light and high-specific strength foam concrete:
preferably, the physical foaming agent is composed of animal protein, AES fatty alcohol, K12, AOS, a thickening agent and water according to the mass ratio of 1:4:0.25:0.25:0.25: 7.
Preferably, the fineness of more than 80 wt% of the particle diameters in the silica fume is less than 1um, and the specific surface area is 20000-28000m 2 /kg, SiO of the silica fume 2 The content is more than or equal to 96 wt%.
Preferably, the cement is Portland cement with the trade name of P.II 42.5.
Preferably, the fly ash is first-grade fly ash, and the specific surface area is 350-380m 2 /kg。
Preferably, the water repellent is a polycarboxylate water reducer and the water reduction rate is more than 30%.
Preferably, the components of the foam stabilizer comprise silicone polyether emulsion.
Preferably, the fibers are glass fibers having a length of 6 to 10 mm.
Preferably, the components of the water repellent comprise anhydrous calcium chloride and sodium oleate, wherein the content of the anhydrous calcium chloride is more than or equal to 96.0 wt%, and the content of heavy metal is less than or equal to 0.001%.
The invention also aims to provide a preparation method of the light-weight high-specific-strength foam concrete, which comprises the following steps:
step 1, weighing cement, silica fume, fly ash, a physical foaming agent, fiber, a foam stabilizer, a water repellent and water in corresponding parts by mass, diluting the physical foaming agent with water according to the proportion of 1 (25-50), and then carrying out primary foaming to obtain foam;
step 2, mixing and stirring the cement, the silica fume, the fly ash, the fiber, the foam stabilizer and the water repellent uniformly, then adding the balance water and the foam prepared in the step 1, and stirring uniformly to obtain slurry;
and 3, pouring the slurry into a mold, standing and foaming to form a test block, removing the mold after the test block is solidified and hardened, and putting the test block into a concrete standard curing room for curing to obtain the light-weight high-specific-strength foam concrete.
Compared with the prior art, the invention has the beneficial effects that:
(1) the present invention takes into account the water contained in the foam when designing the components of the foamed concrete. And calculating the water content in the foam through the foam density and the required foam volume, and deducting the water content, so that the coincidence between the actually obtained dry density of the sample and the designed dry density is better. The dry density of the light and high specific strength foam concrete prepared according to the proportion in the invention<700kg/m 3 The compressive strength is more than or equal to 5.0 MPa.
(2) The foam concrete comprises 280 parts of cement 220-containing materials, 11-14 parts of silica fume, 22-28 parts of fly ash, 4.5-7.8 parts of physical foaming agent, 2.2-5.6 parts of fiber, 0.2-0.5 part of foam stabilizer, 0.2-1.5 parts of water repellent and 140 parts of water 110-containing materials. The stability of bubbles is improved by controlling the dilution ratio and the foaming rate of the foam stabilizer, the water repellent and the foaming agent, so that the pores in the foam concrete are more uniform; the strength of the foam concrete is enhanced by adopting fibers, silica fume and fly ash.
The foam stabilizer containing the silicone polyether emulsion can control the structural stability of a bubble liquid film, so that the surfactant molecules are orderly distributed in the bubble liquid film, and the foam has good elasticity and self-repairing capability
(3) The invention adopts a physical foaming mode, namely foaming agent aqueous solution is stirred by high-pressure air or high-speed machinery to generate foam and added into slurry, and the foam concrete is prepared by mixing, stirring, casting molding and maintaining, so that the operation difficulty is low and the finished product is relatively stable.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative effort based on the embodiments of the present invention belong to the protection scope of the present invention.
Example 1
A preparation method of light and high-specific strength foam concrete comprises the following steps:
step 1, the foam concrete dry material comprises the following components in parts by mass: 220 parts of cement, 11 parts of silica fume, 22 parts of fly ash, 4.5 parts of physical foaming agent, 2.2 parts of fiber, 0.2 part of foam stabilizer, 0.2 part of water repellent and 110 parts of water.
The physical foaming agent comprises animal protein, AES fatty alcohol, K12, AOS, a thickening agent and water.
The dilution ratio of the physical foaming agent is 1: 25.
The fineness of the silica fume is less than 80% of 1um, and the specific surface area is 28000m 2 /kg, SiO of the silica fume 2 The content is more than or equal to 96 wt%.
The cement is P.II 42.5 portland cement.
The fly ash is first-grade fly ash, and the specific surface area of the fly ash is 380m 2 /kg。
The water reducing agent is a polycarboxylic acid water reducing agent, and the water reducing rate of the water reducing agent is more than 30%.
The main component of the foam stabilizer is silicone polyether emulsion.
The fiber is glass fiber with the length of 6-10 mm.
The water repellent comprises the following components: anhydrous calcium chloride and sodium oleate, wherein the content of the anhydrous calcium chloride is more than or equal to 96.0 wt%, and the content of heavy metal is less than or equal to 0.001 wt%.
And 2, pouring the prepared diluted foaming agent into a foaming machine for primary foaming.
Step 3, uniformly mixing and stirring the raw materials (except water and foaming agent) weighed in the step 1, adding the water weighed in the step 1 and the prepared foam, and uniformly stirring to obtain slurry;
step 4, pouring the mixture into a mold after uniform stirring, standing and foaming to form a test block, removing the mold after the test block is solidified and hardened, putting the test block into a concrete standard curing room for curing for 28 days, and testing the dry density of the test block to be 550kg/m 3 The compressive strength is 5.3 MPa.
Example 2
A preparation method of light and high-specific strength foam concrete comprises the following steps:
step 1, the foam concrete dry material comprises the following components in parts by mass: 280 parts of cement, 14 parts of silica fume, 28 parts of fly ash, 7.8 parts of physical foaming agent, 5.6 parts of fiber, 0.5 part of foam stabilizer, 1.5 parts of water repellent and 140 parts of water.
The physical foaming agent comprises animal protein, AES fatty alcohol, K12, AOS, a thickening agent and water.
The dilution ratio of the physical foaming agent is 1: 50.
The fineness of the silica fume is less than 80% of 1um, and the specific surface area is 28000m 2 /kg, SiO of the silica fume 2 The content is more than or equal to 96 wt%.
The cement is P.II 42.5 portland cement.
The fly ash is first-grade fly ash, and the specific surface area of the fly ash is 380m 2 /kg。
The water reducing agent is a polycarboxylic acid water reducing agent, and the water reducing rate of the water reducing agent is more than 30%.
The main component of the foam stabilizer is silicone polyether emulsion.
The fiber is glass fiber with the length of 6-10 mm.
The water repellent comprises the following components: anhydrous calcium chloride and sodium oleate, wherein the content of the anhydrous calcium chloride is more than or equal to 96.0 wt%, and the content of heavy metal is less than or equal to 0.001 wt%.
And 2, pouring the prepared diluted foaming agent into a foaming machine for primary foaming.
Step 3, uniformly mixing and stirring the raw materials (except water and foaming agent) weighed in the step 1, adding the water weighed in the step 1 and the prepared foam, and uniformly stirring to obtain slurry;
step 4, pouring the mixture into a mold after uniform stirring, standing and foaming to form a test block, removing the mold after the test block is solidified and hardened, putting the test block into a concrete standard curing room for curing for 28 days, and testing the dry density of the test block to be 620kg/m 3 The compressive strength is 6.3 MPa.
Example 3
A preparation method of light and high-specific strength foam concrete comprises the following steps:
step 1, the foam concrete dry material comprises the following components in parts by mass: 250 parts of cement, 12 parts of silica fume, 25 parts of fly ash, 5.0 parts of physical foaming agent, 3.8 parts of fiber, 0.4 part of foam stabilizer, 0.8 part of water repellent and 120 parts of water.
The physical foaming agent comprises animal protein, AES fatty alcohol, K12, AOS, a thickening agent and water.
The dilution ratio of the physical foaming agent is 1: 50.
The fineness of the silica fume is less than 80% of 1um, and the specific surface area is 28000m 2 /kg, SiO of the silica fume 2 The content is more than or equal to 96 wt%.
The cement is P.II 42.5 portland cement.
The fly ash is first-grade fly ash, and the specific surface area of the fly ash is 380m 2 /kg。
The water reducing agent is a polycarboxylic acid water reducing agent, and the water reducing rate of the water reducing agent is more than 30%.
The main component of the foam stabilizer is silicone polyether emulsion.
The fiber is glass fiber with the length of 6-10 mm.
The water repellent comprises the following components: anhydrous calcium chloride and sodium oleate, wherein the content of the anhydrous calcium chloride is more than or equal to 96.0 wt%, and the content of heavy metal is less than or equal to 0.001 wt%.
And 2, pouring the prepared diluted foaming agent into a foaming machine for primary foaming.
Step 3, uniformly mixing and stirring the raw materials (except water and the foaming agent) weighed in the step 1, adding the water weighed in the step 1 and the prepared foam, and uniformly stirring to obtain slurry;
step 4, pouring the mixture into a mold after uniform stirring, standing and foaming to form a test block, removing the mold after the test block is solidified and hardened, putting the test block into a concrete standard curing room for curing for 28 days, and testing the dry density of the test block to be 580kg/m 3 The compressive strength is 5.8 MPa.
It should be understood by those skilled in the art that the foregoing is only illustrative of several embodiments of the invention, and not of all embodiments. It should be noted that many variations and modifications are possible to those skilled in the art, and all variations and modifications that do not depart from the gist of the invention are intended to be within the scope of the invention as defined in the appended claims.
Claims (10)
1. The lightweight high-specific-strength foam concrete is characterized by comprising the following components in parts by weight: 280 parts of cement 220-plus, 11-14 parts of silica fume, 22-28 parts of fly ash, 4.5-7.8 parts of physical foaming agent, 2.2-5.6 parts of fiber, 0.2-0.5 part of foam stabilizer, 0.2-1.5 parts of water repellent and 140 parts of water 110-plus.
2. The light weight, high specific strength foamed concrete according to claim 1, characterized in that the physical foaming agent is composed of animal protein, AES fatty alcohol, K12, AOS, thickener and water in a mass ratio of 1:4:0.25:0.25:0.25: 7.
3. The light weight, high specific strength foam concrete according to claim 1, wherein the fineness of 80 wt% or more of the particle size in the silica fume is less than 1um, and the specific surface area is 20000- 2 /kg, SiO of the silica fume 2 The content is more than or equal to 96 wt%.
4. The lightweight, high specific strength foamed concrete according to claim 1, wherein said cement is portland cement having a designation p.ii 42.5.
5. The light-weight high-specific-strength foamed concrete according to claim 1, wherein the fly ash is primary fly ash, and the specific surface area is 350-380m 2 /kg。
6. The light weight, high specific strength foam concrete of claim 1, wherein said water repellent is a polycarboxylic acid water reducing agent and the water reduction rate is greater than 30%.
7. The lightweight, high specific strength foamed concrete according to claim 1, wherein the foam stabilizer comprises a silicone polyether emulsion in its composition.
8. The light weight, high specific strength foamed concrete according to claim 1, wherein said fibers are glass fibers having a length of 6-10 mm.
9. The lightweight, high specific strength foam concrete according to claim 1 or 6, wherein the components of the water repellent comprise anhydrous calcium chloride and sodium oleate, wherein the content of the anhydrous calcium chloride is more than or equal to 96.0 wt%, and the content of heavy metal is less than or equal to 0.001%.
10. A method of producing a lightweight, high specific strength foamed concrete according to any one of claims 1 to 9, characterized by the steps of:
step 1, weighing cement, silica fume, fly ash, a physical foaming agent, fiber, a foam stabilizer, a water repellent and water in corresponding parts by mass, diluting the physical foaming agent with water according to the proportion of 1 (25-50), and then carrying out primary foaming to obtain foam;
step 2, mixing and stirring the cement, the silica fume, the fly ash, the fiber, the foam stabilizer and the water repellent uniformly, then adding the balance water and the foam prepared in the step 1, and stirring uniformly to obtain slurry;
and 3, pouring the slurry into a mold, standing and foaming to form a test block, removing the mold after the test block is solidified and hardened, and putting the test block into a concrete standard curing room for curing to obtain the light-weight high-specific-strength foam concrete.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116120015A (en) * | 2023-02-17 | 2023-05-16 | 天元建设集团有限公司 | Light foam concrete |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007492A (en) * | 2016-05-10 | 2016-10-12 | 青海大学 | Foam concrete and preparation method and application thereof |
| CN108585926A (en) * | 2018-07-12 | 2018-09-28 | 西安建筑科技大学 | A kind of preparation method of foam concrete |
| CN108623243A (en) * | 2017-03-20 | 2018-10-09 | 上海天利商品混凝土有限公司 | A kind of flame-retardant high-strength foam concrete and preparation method |
| CN108996964A (en) * | 2018-08-02 | 2018-12-14 | 东南大学 | A kind of waterproof foam concrete material and preparation method thereof |
| CN109133777A (en) * | 2018-08-20 | 2019-01-04 | 东南大学 | A kind of light cement based porous materials and preparation method thereof |
| CN110317017A (en) * | 2019-06-25 | 2019-10-11 | 郑州工大高新材料科技有限公司 | A kind of high-strength light foam concrete and preparation method thereof |
| CN112745058A (en) * | 2021-01-06 | 2021-05-04 | 北京市高强混凝土有限责任公司 | Foaming agent and foam concrete containing same |
| CN113185227A (en) * | 2021-05-06 | 2021-07-30 | 江苏兆通新材料科技有限公司 | Preparation method of high-performance light foam concrete |
-
2022
- 2022-04-08 CN CN202210367541.2A patent/CN114804916A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007492A (en) * | 2016-05-10 | 2016-10-12 | 青海大学 | Foam concrete and preparation method and application thereof |
| CN108623243A (en) * | 2017-03-20 | 2018-10-09 | 上海天利商品混凝土有限公司 | A kind of flame-retardant high-strength foam concrete and preparation method |
| CN108585926A (en) * | 2018-07-12 | 2018-09-28 | 西安建筑科技大学 | A kind of preparation method of foam concrete |
| CN108996964A (en) * | 2018-08-02 | 2018-12-14 | 东南大学 | A kind of waterproof foam concrete material and preparation method thereof |
| CN109133777A (en) * | 2018-08-20 | 2019-01-04 | 东南大学 | A kind of light cement based porous materials and preparation method thereof |
| CN110317017A (en) * | 2019-06-25 | 2019-10-11 | 郑州工大高新材料科技有限公司 | A kind of high-strength light foam concrete and preparation method thereof |
| CN112745058A (en) * | 2021-01-06 | 2021-05-04 | 北京市高强混凝土有限责任公司 | Foaming agent and foam concrete containing same |
| CN113185227A (en) * | 2021-05-06 | 2021-07-30 | 江苏兆通新材料科技有限公司 | Preparation method of high-performance light foam concrete |
Non-Patent Citations (2)
| Title |
|---|
| 赵丹洋等: "《建筑材料》", 31 July 2016, 西安电子科技大学出版社, pages: 139 * |
| 闫振甲等: "泡沫混凝土泡沫剂生产与应用技术", 哈尔滨工业大学出版社, pages: 159 - 161 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116120015A (en) * | 2023-02-17 | 2023-05-16 | 天元建设集团有限公司 | Light foam concrete |
| CN116120015B (en) * | 2023-02-17 | 2024-04-26 | 天元建设集团有限公司 | Light foam concrete |
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