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Building material containing foaming material and preparation method thereof

A technology for building materials and foaming agents, applied in the field of building materials, can solve the problems of degeneration, mildew, and high foam strength

Active Publication Date: 2012-03-21
BEIJING TIANJI NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Qualified animal protein has a large amount of foaming and high foam strength, but it also has the disadvantages of insufficient foam stability, easy mildew, and easy denaturation due to external environmental influences such as temperature and pH value.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0042] NaOH solution and α-tapioca starch are mixed according to the ratio of NaOH dry weight:starch=1:10, and the starch is gelatinized to obtain gelatinized α-tapioca starch.

[0043] Utilize the above-mentioned gelatinized α-tapioca starch that makes to prepare concrete foaming agent according to following proportioning, concrete method is:

[0044] The gelatinized α-tapioca starch of 50Kg, the sodium lauryl sulfate of 40Kg, the lauryl alcohol of 4Kg and the sodium carboxymethylcellulose of 2.5Kg are mixed, stir evenly, promptly described concrete foaming agent.

[0045] Gained concrete foaming agent is used in Lafarge cement according to the consumption of 0.5Kg foaming agent / 1 cubic meter of cement, under the humidity condition of 75%, does not find that long-haired phenomenon takes place in 30 days, same volume quality reduces 40% , The thermal insulation ability is increased by about 5 times, and the strength has not been found to have a significant decrease.

preparation Embodiment 2

[0047] Mix 50Kg of ungelatinized α-tapioca starch, 40Kg of sodium lauryl sulfate, 4Kg of lauryl alcohol and 2.5Kg of sodium carboxymethyl cellulose, and stir evenly to form the concrete foaming agent.

[0048] Gained concrete foaming agent is used in Lafarge cement according to the consumption of 0.5Kg foaming agent / 1 cubic meter of cement, and under the humidity condition of 75%, there is no hair growth in 15 days, and a small amount of hair growth is found in 30 days Phenomenon, the mass of the same volume is reduced by 35%, and the heat insulation capacity is increased by about 4.5 times, but no significant decrease in strength is found.

preparation Embodiment 3

[0054] Preparation of Melamine Water Reducer

[0055] At room temperature, add concentration to 600Kg water and be 14Kg of sodium hydroxide aqueous solution of 10% by weight, mix uniformly, then add 280Kg phenol, 860Kg sulfanilate, 4300Kg concentration and be the formaldehyde aqueous solution of 36% by weight, after continuing to mix uniformly, Add 220Kg of urea and 1500Kg of melamine, mix, raise the temperature to 80-100°C, and keep warm for 10-50 minutes after the material changes from cloudy to clear to obtain mixture I;

[0056] 2), add 2000Kg water, 1800Kg sodium metabisulfite and 90Kg aqueous sodium hydroxide solution with a concentration of 20% by weight to the mixture I, mix well, raise the temperature to 90-105° C., and keep the temperature for 1-2 hours to obtain the mixture II;

[0057] 3) Add 20Kg of 98% by weight concentrated sulfuric acid to mixture II, then add 30Kg of water, mix well, and keep the temperature at 25°C for 3 hours to obtain mixture III;

[0058]...

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Abstract

The invention provides a building material containing a foaming material and a preparation method thereof. The building material comprises the following components in parts by weight: 200-400 parts of perlite, 100 parts of cement, 15-30 parts of pulverized fuel ash, 30-80 parts of water, 0.1-0.3 part of concrete foaming agent, 2-4 parts of reinforcing fiber and 0.5-2 parts of water reducing agent, wherein the concrete foaming agent consists of starch, a surfactant, lauryl alcohol and an alkali metal salt of carboxymethyl cellulose in the weight ratio (40-60):(32-47):(3-8):(2-5). Cells in the material have small diameters and are uniform, so that the material has the advantages of light weight, heat preservation, heat insulation, fire proofing and leakage prevention. Moreover, the materialfurther has the advantages of difficulty in molding and difficulty in denaturing due to the influences of external environments such as temperature, pH and the like.

Description

technical field [0001] The invention belongs to the field of building materials, and more specifically relates to a light-weight, high-strength heat-preserving and fireproof building material containing a foaming agent and a preparation method thereof. Background technique [0002] In recent years, my country's construction industry has been booming, and the requirements for building materials have become higher and higher, especially for some special places, such as large stadiums, subways, urban railways, and warehouse roofs. Building materials not only require certain Intensity, and requires leak-proof, thermal insulation, fire prevention, and light weight. Traditional concrete-based materials have high strength and good fire resistance, but their density is high, that is, their specificity is large, and their thermal insulation performance is not ideal. Therefore, they are not suitable for large roofs and other places. However, resin-based materials, although small in sp...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B38/02C04B14/18
CPCC04B28/02C04B38/10C04B40/0039C04B2103/42Y02W30/91C04B14/18C04B18/08C04B20/0048C04B2103/302C04B24/026C04B24/16C04B24/38C04B24/383
Inventor 马清浩
Owner BEIJING TIANJI NEW MATERIALS
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