a foam concrete

A foamed concrete and coagulant technology, applied in the field of foamed concrete, can solve the problems of slow solidification, low early strength of foamed concrete, etc., and achieve the effects of reducing the diameter of the foam, the strength is not easy to crack, and the anti-seepage performance is good.

Active Publication Date: 2022-05-27
山东威汉新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of low early strength and slow solidification of foamed concrete prepared by physical foaming method, the present invention provides a kind of foamed concrete, which can accelerate the solidification speed of foamed concrete prepared by physical foaming and improve the early strength of foamed concrete

Method used

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  • a foam concrete

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022]The fatty alcohol polyoxyethylene ether, sodium laurylbenzenesulfonate and tapioca starch are formulated into a composite blowing agent according to the mass ratio of 1:2:2;

[0023] SILRES Powder D silane waterproofing agent and potassium aluminum sulfate dodecahydrate are formulated as waterproofing agents according to the mass ratio of 0.5:1;

[0024] Foam concrete is prepared according to the following preparation method:

[0025] (1) 42.5 strength ordinary Portland cement 50 parts by weight, 42.5 strength aluminum salt cement 5 parts by weight, PCA-I polycarboxylic acid superplasticizer (Subot) 0.6 parts by weight, waterproof agent 0.5 parts by weight, add water to mix uniformly to obtain cement slurry;

[0026] (2) Composite blowing agent 5 by weight added to the residual water in the foam machine foaming, add the cement slurry in step (1) to mix evenly to obtain the foam cement slurry, and then add the foam cement slurry volume 10% density of 600kg / m 3 0.6 parts by ...

Embodiment 2

[0031] The fatty alcohol polyoxyethylene ether, sodium laurylbenzenesulfonate and tapioca starch are formulated into a composite blowing agent according to the mass ratio of 1:1:1;

[0032] SILRES Powder D silane waterproofing agent and potassium aluminum sulfate dodecahydrate are formulated as waterproofing agents according to the mass ratio of 0.5:1;

[0033] Foam concrete is prepared according to the following preparation method:

[0034](1) 42.5 strength ordinary Portland cement 25 parts by weight, 42.5 strength aluminate cement 5 parts by weight, PCA-I polycarboxylic acid superplasticizer (Subot) 0.5 parts by weight, waterproof agent 0.5 parts by weight, add water to mix uniformly to obtain cement slurry;

[0035] (2) Compound blowing agent 3 by weight added to the residual water in the foam machine foaming, add the cement slurry in step (1) to mix evenly to obtain the foam cement slurry, and then add the foam cement slurry volume of 15% density of 300kg / m 3 Ceramic particl...

Embodiment 3

[0038] The fatty alcohol polyoxyethylene ether, sodium laurylbenzenesulfonate and tapioca starch are formulated into a composite blowing agent according to the mass ratio of 1:0.5:2;

[0039] SILRES Powder D silane waterproofing agent and potassium aluminum sulfate dodecahydrate are formulated as waterproofing agents according to the mass ratio of 0.5:1;

[0040] Foam concrete is prepared according to the following preparation method:

[0041] (1) 42.5 strength ordinary Portland cement 45 parts by weight, 42.5 strength aluminate cement 6 parts by weight, PCA-I polycarboxylic acid superplasticizer (Subot) 0.6 parts by weight, waterproof agent 0.6 parts by weight, add water to mix uniformly to obtain cement slurry;

[0042] (2) Composite blowing agent 1 by weight added to the spare amount of water in the foam machine foaming, add the cement slurry in step (1) to mix evenly to obtain foam cement slurry, and then add foam cement slurry volume 5% density of 300kg / m 3 The ceramic part...

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Abstract

The invention provides a foam concrete, which is prepared according to the following method: (1) uniformly mixing cement, water reducing agent, waterproofing agent and part of water to obtain cement slurry. (2) Foam the composite foaming agent and the remaining water in a foam machine, add the cement slurry in step (1) and mix evenly to obtain foam cement slurry, then add ceramsite and coagulant, mix evenly to obtain foam concrete pulp. (3) Pour the foamed concrete slurry into the mold, and after molding, steam curing to the specified age, that is to say. Described cement is made up of portland cement and aluminate cement by mass ratio 5-10:1, and described composite blowing agent is made up of fatty alcohol polyoxyethylene ether, sodium dodecylbenzene sulfonate and tapioca starch by mass The ratio is 1‑2:0.5‑2 composition. The foamed concrete material of the invention has good waterproof and anti-seepage properties, high strength and is not easy to crack, and can be widely used in building materials.

Description

Technical field [0001] The present invention belongs to the field of building material preparation technology, specifically relates to a kind of foam concrete. Background [0002] Foam concrete is currently the most ideal insulation material for wall insulation and wall insulation fireproof isolation belt, its thermal conductivity is low, the thermal insulation effect is good, it does not burn, it is waterproof, it has strong adhesion with the wall, high strength, no toxic radioactive substances, and environmental protection. It is the same as the service life of the building, and the construction is simple and fast. [0003] There are two methods of foaming of foam concrete: chemical foaming and physical foaming. Physical foaming is the use of foaming machine to form a foam with a certain tension after pressing, and then the foam and cement slurry are stirred at the same time, the cement will continue to expand during the mixing process, when the expansion effect reaches a pre-s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/10C04B28/06C04B111/40C04B111/27
CPCC04B28/06C04B2111/40C04B2111/27C04B2201/50C04B22/00C04B2103/302C04B2103/65C04B24/26C04B24/20C04B24/38C04B38/10C04B38/0074C04B38/0067
Inventor 耿聪英王奕丁
Owner 山东威汉新材料有限公司
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