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Insulation board prepared from ardealite-based hydraulic composite cementing material and preparation method thereof

A technology of composite cementitious materials and phosphogypsum, which is applied in the field of building materials, can solve the problems of weak thermal insulation performance improvement, etc., and achieve the effects of good setting and hardening effects, excellent mechanical properties and durability, and variable decorative effects

Inactive Publication Date: 2020-11-10
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the degree of improvement in its thermal insulation performance is weak

Method used

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  • Insulation board prepared from ardealite-based hydraulic composite cementing material and preparation method thereof
  • Insulation board prepared from ardealite-based hydraulic composite cementing material and preparation method thereof
  • Insulation board prepared from ardealite-based hydraulic composite cementing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A thermal insulation board prepared from phosphogypsum-based hydraulic composite cementitious material, the distribution ratio of each component is:

[0041] 100 parts of phosphogypsum, 50 parts of slag powder, 18 parts of Portland cement, 12.5 parts of silica fume, 200 parts of expanded perlite, 3.5 parts of shrinkage reducing agent, 1.0 part of expansion agent, 1.3 parts of water reducing agent, 0.05 part of cellulose ether, 0.0010 parts of latex powder, 0.5 parts of silane-based powder water repellent and 125 parts of water.

[0042] 100 parts of phosphogypsum, 50 parts of slag powder, 18 parts of Portland cement, 12.5 parts of silica fume, 200 parts of expanded perlite; 3.5 parts of shrinkage reducing agent, 1.0 part of expansion agent, 1.3 parts of water reducing agent, and 0.05 parts of cellulose ether , 0.0010 parts of latex powder, 0.5 parts of silane-based powder water repellent and 125 parts of water were weighed, and mixed and stirred according to the batch a...

Embodiment 2

[0044] A thermal insulation board prepared from phosphogypsum-based hydraulic composite cementitious material, the distribution ratio of each component is:

[0045]100 parts of phosphogypsum, 70 parts of slag powder, 35 parts of Portland cement, 11.5 parts of silica fume, 250 parts of expanded perlite, 5.0 parts of shrinkage reducing agent, 3.5 parts of expansion agent, 3.0 parts of water reducing agent, 0.08 parts of cellulose ether, 0.001 part of latex powder, 2.5 parts of silane-based powder water repellent and 150 parts of water.

[0046] According to the mass ratio of 100 parts of phosphogypsum, 70 parts of slag powder, 35 parts of Portland cement, 11.5 parts of silica fume, and 250 parts of expanded perlite; 0.08 parts of ether, 0.001 parts of latex powder, 2.5 parts of silane-based powder water repellent and 150 parts of water were weighed, mixed and stirred evenly to obtain the desired product. The performance test results are shown in Table 1.

Embodiment 3

[0048] A thermal insulation board prepared from phosphogypsum-based hydraulic composite cementitious material, the distribution ratio of each component is:

[0049] 100 parts of phosphogypsum, 63 parts of slag powder, 25 parts of Portland cement, 10 parts of silica fume, 230 parts of expanded perlite, 4.3 parts of shrinkage reducing agent, 2.3 parts of expansion agent, 2.5 parts of water reducing agent, 0.05 part of cellulose ether, 0.0008 parts of latex powder, 1.5 parts of silane-based powder water repellent and 135 parts of water.

[0050] According to the mass ratio of 100 parts of phosphogypsum, 63 parts of slag powder, 25 parts of Portland cement, 10 parts of silica fume, and 230 parts of expanded perlite; 4.3 parts of shrinkage reducing agent, 2.3 parts of expansion agent, 2.5 parts of water reducing agent, cellulose 0.05 parts of ether, 0.0008 parts of latex powder, 1.5 parts of silane-based powder water repellent and 135 parts of water were weighed, mixed and stirred ...

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Abstract

The invention relates to an insulation board prepared from an ardealite-based hydraulic composite cementing material and preparation thereof. The insulation board comprises the following components inparts by weight: 100 parts of ardealite, 50-70 parts of slag powder, 18-35 parts of Portland cement, 200-250 parts of expanded perlite, 6.5-12.5 parts of silica fume, 3.5-5.0 parts of shrinkage reducing agent, 1.0-3.5 parts of expanding agent, 1.3-3.1 parts of water reducing agent, 0.04-0.08 part of cellulose ether, 0.0003-0.0010 part of latex powder, 0.5-2.5 parts of a silane-based powder waterrepellent, and 125-150 parts of water. The insulation board has good heat preservation performance and energy-saving and emission-reducing environment-friendly performance, is heat-insulating and light in weight, and can be widely applied to exterior wall external heat preservation, artistic buildings, high-rise buildings and the like. The product has wide application prospects in the fields of promoting building energy conservation and green buildings.

Description

technical field [0001] The invention belongs to the technical field of building materials, and relates to a thermal insulation board prepared from phosphogypsum-based hydraulic composite gelling material and the preparation thereof. Background technique [0002] my country's phosphate fertilizer industry is developing rapidly, and now nearly 50 million tons of by-product phosphogypsum are produced every year, of which only about 20% of the phosphogypsum is utilized. Since most of the utilization of phosphogypsum instead of natural gypsum at this stage requires pretreatment, it is difficult to compete with desulfurized gypsum in terms of cost, and my country mainly uses thermal power generation, and the output of desulfurized gypsum is huge, which further limits the prospects for the utilization of phosphogypsum . In recent decades at home and abroad, research on the resource utilization of phosphogypsum has been carried out to varying degrees. However, the performance of pho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14
CPCC04B28/143C04B2201/32C04B2201/50
Inventor 孙振平李嘉伟冀言亮黎碧云
Owner TONGJI UNIV
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