Preparation method of cement foamed heat insulation board

A cement foaming and thermal insulation board technology, applied in the field of building materials, can solve the problems of reduced compressive strength, stress concentration, uneven distribution, etc., and achieve the effects of uniform distribution, prevention of cracking, and uniform pore size.

Inactive Publication Date: 2017-11-24
CHANGZHOU SIYU ENVIRONMENTAL PROTECTION MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the drawbacks of the existing cement foam insulation boards, such as inconsistent pore size, uneven distribution, prone to stress concentration, and a decrease in its compressive strength, a preparation of a cement foam insulation board is provided. method

Method used

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Examples

Experimental program
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preparation example Construction

[0021] The preparation method of cement foam insulation board of the present invention comprises the following steps:

[0022] (1) According to the number of parts by weight, the raw materials are taken, 95-100 parts of cement, 30-40 parts of water, 8-10 parts of composite foaming agent, 6-9 parts of silicon-acrylic emulsion, 3-5 parts of additives, 1 ~2 parts of water reducing agent and 1.4~1.5 parts of catalyst;

[0023] (2) First put cement, silicon acrylic emulsion, water reducer and catalyst into the mixer, stir and mix at 300r / min for 30-50min, then add water, stir at 50-60℃ for 20-30min, then add compound hair After the foaming agent and auxiliary agent continue to stir for 1-2 hours, collect the stirred mixture, put it into a mold, and place the mold at 70-80°C for 3-5 hours to stand still for foaming;

[0024] (3) After the foaming is completed, put the mold at room temperature and let it stand for 3-6 hours, then demould, collect the demoulding material, maintain an...

example 1

[0026] The preparation of cement in the present invention: According to the mass ratio of 3:1, ordinary Portland cement (manufacturer: Shanghai Sixu Engineering Technology Co., Ltd.), sulphoaluminate cement (manufacturer: Hangzhou Yaowei Building Material Technology Co., Ltd.) Put it in a blender and mix well.

[0027] Preparation of composite foaming agent: Mix sodium lauroyl sarcosinate, N-acyl glutamate and 1.6mol / L hydrogen peroxide at a mass ratio of 1:1:5.

[0028] Preparation of additives: Mix polyglutamic acid and sodium dodecylbenzenesulfonate evenly at a mass ratio of 4:1.

[0029] The choice of water reducing agent is amino water reducing agent (manufacturer: Shaanxi Qinfen Building Materials Co., Ltd.).

[0030] Catalyst preparation: mix titanium dioxide and manganese dioxide at a mass ratio of 1:3.

[0031] The preparation method of cement foam insulation board of the present invention comprises the following steps:

[0032] (1) According to parts by weight, th...

example 2

[0036] The preparation of cement in the present invention: According to the mass ratio of 4:1, ordinary Portland cement (manufacturer: Shanghai Sixu Engineering Technology Co., Ltd.), sulphoaluminate cement (manufacturer: Hangzhou Yaowei Building Material Technology Co., Ltd.) Put it in a blender and mix well.

[0037] Preparation of composite foaming agent: Mix sodium lauroyl sarcosinate, N-acyl glutamate and 1.6mol / L hydrogen peroxide at a mass ratio of 1:1:5.

[0038] Preparation of additives: Mix polyglutamic acid and sodium dodecylbenzenesulfonate evenly at a mass ratio of 5:1.

[0039] The choice of water reducing agent is polycarboxylate high-performance water reducing agent (manufacturer: Shaanxi Qinfen Building Materials Co., Ltd.).

[0040] Catalyst preparation: mix titanium dioxide and manganese dioxide at a mass ratio of 1:3.

[0041] The preparation method of cement foam insulation board of the present invention comprises the following steps:

[0042] (1) Accor...

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PUM

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Abstract

The invention discloses a preparation method of cement foamed heat insulation board, and belongs to the field of building materials. The preparation method comprises the following steps of : taking raw materials in parts by weight, afterwards, firstly uniformly agitating and mixing cement, a silicon-acrylate emulsion, a water reducer and a catalyst in the raw materials, adding water, agitating, next, adding a compound foaming agent and an additive in the raw materials, continuously agitating, then collecting an agitated mixture, and standing, foaming, standing at a room temperature and demolding to obtain a demolded matter, and maintaining and drying the demolded matter, so that the cement foamed heat insulation board can be obtained. The preparation method has the beneficial effects that pores of the cement foamed heat insulation board are consistent in aperture size and uniformly distributed; meanwhile, the cement foamed heat insulation board has higher compression strength, and is worth to be popularized and used.

Description

technical field [0001] The invention relates to a preparation method of a cement foam insulation board, which belongs to the field of building materials. Background technique [0002] Cement foam insulation board refers to the insulation board manufactured by foam cement technology; cement foam insulation board, also known as foamed concrete insulation board, inorganic fireproof insulation board. It is a lightweight foam-like heat insulating material made of ordinary Portland cement, fly ash, foaming agent, admixture, etc., through compounding, stirring, foaming, cutting and other processes. internally formed. [0003] Foamed cement can be divided into physical foaming and chemical foaming according to different production methods. Physical foaming: the foaming agent is prepared into foam by mechanical equipment, and then the foam is added to the slurry made of cement-based cementitious materials, aggregates, admixtures, admixtures and water, mixed and poured Formed and m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B38/02C04B38/10C04B24/42C04B24/08C04B24/12C04B22/06
CPCC04B22/06C04B22/068C04B24/085C04B24/121C04B24/42C04B28/06C04B2201/50C04B7/02C04B24/287C04B24/20C04B2103/302C04B38/02C04B38/10C04B38/0051
Inventor 王峰方晓俊王磊
Owner CHANGZHOU SIYU ENVIRONMENTAL PROTECTION MATERIAL SCI & TECH
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