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Foam concrete

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

Active Publication Date: 2020-11-20
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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  • Foam concrete

Examples

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Effect test

Embodiment 1

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

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

[0024] Prepare foam concrete according to the following preparation methods:

[0025] (1) 50 parts by weight of 42.5-strength ordinary Portland cement, 5 parts by weight of aluminate cement with 42.5 strength, 0.6 parts by weight of PCA-I polycarboxylate superplasticizer (Subot), 0.5 parts by weight of waterproofing agent, Add water and mix evenly to obtain cement slurry;

[0026] (2) Add 5 parts by weight of composite foaming agent and add the rest of water to foam in a foam machine, add the cement slurry in step (1) and mix evenly to obtain foam cement slurry, and then add 10% of the volume of foam cement slurry to a density ...

Embodiment 2

[0031] Fatty alcohol polyoxyethylene ether, sodium dodecylbenzenesulfonate 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 into a waterproofing agent according to the mass ratio of 0.5:1;

[0033] Prepare foam concrete according to the following preparation methods:

[0034] (1) 25 parts by weight of 42.5-strength ordinary Portland cement, 5 parts by weight of aluminate cement with 42.5 strength, 0.5 parts by weight of PCA-I polycarboxylate superplasticizer (Subot), 0.5 parts by weight of waterproofing agent, Add water and mix evenly to obtain cement slurry;

[0035] (2) Add 3 parts by weight of composite foaming agent and add the rest of water to foam in a foam machine, add the cement slurry in step (1) and mix evenly to obtain foam cement slurry, then add 15% of the volume of foam cement slurry to a density of...

Embodiment 3

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

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

[0040] Prepare foam concrete according to the following preparation methods:

[0041] (1) 45 parts by weight of 42.5-strength ordinary Portland cement, 6 parts by weight of aluminate cement with 42.5 strength, 0.6 parts by weight of PCA-I polycarboxylate superplasticizer (Subot), 0.6 parts by weight of waterproofing agent, Add water and mix evenly to obtain cement slurry;

[0042] (2) 1 part by weight of composite foaming agent, add the balance of water to foam in a foam machine, add the cement slurry in step (1) and mix evenly to obtain foam cement slurry, then add 5% of the volume of foam cement slurry to a density of 300kg...

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Abstract

The invention provides foam concrete. The foam concrete is prepared by the following method: (1) uniformly mixing cement, a water reducing agent, a waterproof agent and part of water to obtain cementpaste, (2) foaming a composite foaming agent and the balance of water in a foaming machine, adding the cement paste in the step (1), uniformly mixing to obtain foamed cement paste, adding ceramsite and a coagulant, and uniformly mixing to obtain the foam concrete paste, and (3) pouring the foam concrete slurry into a mold, molding, and carrying out steam curing to a specified age, wherein the cement is composed of Portland cement and aluminate cement according to a mass ratio of (5-10): 1, and the composite foaming agent is composed of fatty alcohol-polyoxyethylene ether, sodium dodecyl benzene sulfonate and cassava starch according to a mass ratio of (1-2): (0.5-2). The foam concrete disclosed by the invention has the characteristics of good waterproof and anti-seepage performance, high strength and difficulty in cracking, and can be widely applied to building materials.

Description

technical field [0001] The invention belongs to the technical field of building material preparation, and in particular relates to foam concrete. Background technique [0002] Foam concrete is currently the most ideal insulation material for wall insulation and wall insulation fireproof isolation belt. It has low thermal conductivity, good insulation effect, non-combustible, waterproof, strong adhesion to the wall, high strength, and no toxic radioactive substances. Environmental friendly. It is in the same period as the service life of the building, and the construction is simple and fast. [0003] Foaming methods of foam concrete include chemical foaming and physical foaming. The physical method of foaming is to use the foaming machine to pressurize the foaming agent to form a foam with a certain tension, and then stir the foam and cement slurry at the same time. During the stirring process, the cement will continue to expand. When the expansion effect reaches the preset...

Claims

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Application Information

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