Flame retardant heat-insulation foam concrete and preparation method thereof

A foamed concrete, flame-retardant and thermal insulation technology, applied in ceramic products, other household appliances, applications, etc., can solve the problems of restricting the popularization and application of foamed concrete materials, easy to absorb water, crack, and shrink, and achieve excellent thermal insulation performance and shrinkage. Low, reduced volume shrinkage effect

Active Publication Date: 2011-08-17
SHANGHAI RES INST OF BUILDING SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of prior art foam concrete are: low strength, large shrinkage, and easy water absorption and cracking; these shortcomings limit the popularization and application of foam concrete materials

Method used

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  • Flame retardant heat-insulation foam concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Flame retardant and thermal insulation foam concrete 1 is prepared according to the following mass ratio: 40 parts of cement, 42 parts of fly ash, 18 parts of mineral powder, 0.2 part of melamine superplasticizer, 0.03 part of cellulose ether with a viscosity of 10,000, and 0.2 part of silane water repellent , 4.8 parts of gypsum, 0.08 part of polypropylene fiber, 0.20 part of vegetable protein foaming agent, and 0.33 part of water.

[0060] The preparation method is as follows:

[0061] First mix the cement, fly ash, mineral powder, modified component water reducer, cellulose ether, water repellent, gypsum, and polypropylene fiber to make a dry powder; dilute the foaming agent with water, Use an air compression foaming machine to make the foaming agent aqueous solution into a foam; add an appropriate amount of water to the dry powder and stir it, and the slurry is required to be uniform without agglomeration and large particles; take the prepared foam and add it to the...

Embodiment 2

[0063] Flame-retardant thermal insulation foam concrete 2 is prepared according to the following mass ratio: 50 parts of cement; 25 parts of fly ash; 25 parts of mineral powder; 0.4 part of naphthalene-based water reducer; 0.4 parts of agent; 2 parts of gypsum; 0.16 parts of polypropylene fiber; 0.21 parts of animal protein foaming agent; 0.31 parts of water.

[0064] The preparation method is the same as in Example 1.

Embodiment 3

[0066] Flame-retardant thermal insulation foam concrete 3 is prepared according to the following mass ratio: 60 parts of cement; 12 parts of fly ash; 28 parts of mineral powder; 0.3 part of naphthalene-based water reducer; 0.2 parts of agent; 1.2 parts of gypsum; 0.24 parts of polypropylene fiber; 0.20 parts of animal protein foaming agent; 0.32 parts of water.

[0067] The preparation method is the same as in Example 1.

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Abstract

The invention discloses flame retardant heat-insulation foam concrete which consists of the materials by mass as follows: 30-60 parts of cement; 30-70 parts of coal ash; 10-40 parts of mineral powder; 0.05-1. 0 part of water reducing agent; 0.02-0.2 part of cellulose ether; 0.05-1.0 part of water repellent; 1-10 parts of anhydrous anhydrite; 0.06-0.2 part of polypropylene fiber; 0.1-0.4 part of foaming agent; and 0.30-0.60 part of water. The advantages are as follows: the foam concrete has high strength, low shrinkage and good water repellent property; the heat insulation performance is good and can meet different heat-insulation requirements of buildings; the preparation technology is simple; and industrial wastes such as coal ash, mineral powder and the like are utilized fully, and the flame retardant heat-insulation foam concrete has excellent environment-protection effects of utilizing waste, saving energy and the like, as well as better economic benefit.

Description

[0001] technical field [0002] The invention belongs to flame-retardant and heat-preserving building materials, in particular to a flame-retardant and heat-preserving foam concrete and a preparation method thereof. Background technique [0003] At present, a large number of thermal insulation materials are used in China's building energy-saving and thermal insulation projects. Because many materials have poor flame-retardant effects and are prone to fires, the Chinese building energy-saving market urgently needs flame-retardant thermal insulation materials. The combustion performance of the inorganic foam insulation material reaches the non-combustible A level. Among inorganic foam materials, foam glass, foam aluminum, and foam ceramics are expensive and cannot be the main source of flame-retardant and thermal insulation building materials. Although the price of fiber insulation materials such as rock wool and mineral wool is slightly lower, it is still much higher than th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B28/14
Inventor 管文张鑫赵立群
Owner SHANGHAI RES INST OF BUILDING SCI CO LTD
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