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Basalt fiber foaming cement heat insulation plate and preparation method of basalt fiber foaming cement heat insulation plate

A technology of basalt fiber and foamed cement, applied in the field of building materials, can solve the problems of poor dispersion, unstable quality, and large thermal conductivity fluctuation, and achieve the effects of high compressive strength, low thermal conductivity, and stable quality

Inactive Publication Date: 2015-12-09
SINOMA INT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when basalt fiber is mixed with other raw materials to prepare building materials, its dispersion is not good, and the performance of foamed cement insulation boards prepared with it is unstable, such as unstable quality under different bulk densities, large fluctuations in thermal conductivity, etc., limiting The promotion and application of basalt fiber

Method used

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  • Basalt fiber foaming cement heat insulation plate and preparation method of basalt fiber foaming cement heat insulation plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A basalt fiber foamed cement insulation board is prepared from raw materials containing powder, anti-cracking components, chemical additives and water, and has a water-binder ratio of 0.44; wherein the powder is made of 70% ordinary silicon Salt cement and 30% high belite sulphoaluminate cement are mixed (calculated by the total weight of the powder); the chemical admixture (calculated by the total weight of the powder) includes 1.7% Waterproofing agent, 0.15% water reducing agent, 1% foaming synergist, 7% foaming agent; anti-cracking component basalt fiber accounts for 0.5% of the total weight of the powder;

[0025] The waterproofing agent is calcium stearate;

[0026] The water reducing agent is a polycarboxylic acid water reducing agent;

[0027] The foaming synergist is ferric chloride solution, and the mass fraction of ferric chloride in the solution is 13%;

[0028] The blowing agent is an aqueous hydrogen peroxide solution, and the mass fraction of hydrogen peroxide in...

Embodiment 2

[0031] A basalt fiber foamed cement insulation board is prepared from raw materials containing powder, anti-cracking components, chemical additives and water, with a water-binder ratio of 0.44; wherein, the powder is made of 60% ultrafine Portland cement and 40% high Belite sulphoaluminate cement are mixed (calculated by the total weight of the powder); the chemical admixture (calculated by the total weight of the powder) includes 2% Waterproofing agent, 0.25% water reducing agent, 0.15% setting agent, 8.4% foaming agent; anti-cracking component basalt fiber accounts for 1% of the total weight of the powder;

[0032] The waterproofing agent is calcium stearate;

[0033] The water reducing agent is a polycarboxylic acid water reducing agent;

[0034] The coagulant is a mixture of citric acid, sodium citrate and lithium carbonate (the weight ratio of the three is 1:10:4);

[0035] The blowing agent is a hydrogen peroxide solution, and the mass fraction of hydrogen peroxide in the solut...

Embodiment 3

[0038] A basalt fiber foamed cement insulation board is prepared from raw materials containing powder, anti-cracking components, chemical additives and water, and has a water-binder ratio of 0.44; wherein the powder is high belite sulfur Aluminate cement; the chemical admixture (calculated as a percentage of the total weight of the powder) includes 2% waterproofing agent, 0.25% water reducing agent, 0.15% setting agent, 8.4% foaming agent; The cracking component basalt fiber accounts for 1% of the total weight of the powder;

[0039] The waterproofing agent is calcium stearate;

[0040] The water reducing agent is a polycarboxylic acid water reducing agent;

[0041] The coagulant is a mixture of citric acid, sodium citrate and lithium carbonate (the weight ratio of the three is 1:10:4);

[0042] The blowing agent is an aqueous hydrogen peroxide solution, and the mass fraction of hydrogen peroxide in the solution is 27.5%.

[0043] The above-mentioned thermal insulation board is prepar...

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Abstract

The invention discloses a basalt fiber foaming cement heat insulation plate, which is prepared from raw materials containing powder materials (cement or a mixture of cement and mineral additives according to a weight ratio being 50 percent to 99 percent and 1 percent to 50 percent), anti-cracking ingredients (basalt fiber), chemical additives (hole structure regulators, set-controlling agents, waterproof agents, water reducing agents, foaming synergists and foaming agents) and water. The water-to-glue ratio is 0.3 to 0.6. The weight percentage of each ingredient of the chemical additives and the anti-cracking ingredient accounting for the weight of the powder material is shown as follows: the hole structure regulators are 0 to 3 percent, the set-controlling agents are 0 to 10 percent, the waterproof agents are 0.5 to 3 percent, the water reducing agents are 0.05 to 0.5 percent, the foaming synergists are 0 to 5 percent, the foaming agents are 3 to 10 percent, and the anti-cracking ingredients are 0.5 to 3 percent. The powder materials, the hole structure regulators, the set-controlling agents, the waterproof agents, the water reducing agents and the water are mixed; then, the mixture is stirred for 30s at a speed being 150 to 250r / min; the anti-cracking ingredient is added and is stirred for 60s; then, the foaming synergists are added and are stirred for 20 to 50s; finally, the foaming agents are added and are stirred for 5 to 15s; after the foaming, the cutting is performed, and the heat insulation plate is obtained. The heat insulation plate provided by the invention has the advantages that the quality is stable, and the combustion performance can reach the national grade A standard.

Description

Technical field [0001] The invention relates to the field of building materials, in particular to a basalt fiber foamed cement insulation board and a preparation method thereof. Background technique [0002] At present, most of the existing foamed cement insulation boards in the domestic market are mixed with organic fibers to improve the tensile strength and structural integrity of the foamed cement insulation boards, but the organic fibers have poor high temperature resistance. In a fire, organic fibers such as PP and PVA will decompose and emit pungent and harmful gases, and the connection effect of the fibers to the foam board and the structural integrity of the foam board itself are also destroyed. Therefore, it is necessary to replace organic fibers with inorganic fibers and develop foamed cement insulation boards reinforced by inorganic fibers. [0003] Basalt fiber is a new type of inorganic fiber. Compared with inorganic fibers such as glass fiber, it has the advantages o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B28/04C04B28/06C04B14/38
Inventor 王彬李晋梅陈智丰张利俊隋同波刘淼周健李菁
Owner SINOMA INT ENG