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Early-strength waterproof foaming agent for foam concrete

A foam concrete and foaming agent technology, which is applied in the field of early-strength waterproof foam concrete foaming agent, can solve the problems of poor stability of foam concrete slurry, affecting the popularization and use of foam concrete, and one-time pouring height difference, etc. One-time pouring height, fine and uniform foam, and the effect of reducing mold collapse

Active Publication Date: 2020-05-12
FUJIAN CONSTR ENG GRP BUILDING MATERIAL SCI & TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, due to its light weight, high fluidity, thermal insulation, and high construction efficiency, foam concrete has been used more and more in abutment backfill, subgrade filling, roof insulation, lightweight thermal insulation wall panels, and tunnel top load-reducing backfill. However, in the process of market application, there are problems such as poor stability of the foamed concrete slurry prepared by the foaming agent, collapse of the mold, poor one-time pouring height, and high water absorption due to the poor stability of the foaming agent. A large number of applications in foam concrete also have problems such as low early strength that lead to slow construction progress, which affects the further promotion and use of foam concrete

Method used

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  • Early-strength waterproof foaming agent for foam concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh 100 parts of water; 9.5 parts of potassium lauryl ether phosphate, 8 parts of lauryl amidopropyl hydroxysultaine, 5 parts of cocoic acid diethanolamide; 1.2 parts of gum arabic, 1.5 parts of pentasodium triphosphate, ammonium chloride 0.9 parts; 1.6 parts of sodium sulfate, 2.5 parts of sodium carbonate; 1.8 parts of sodium methyl silicate, mix all components evenly to get foaming agent. Refer to JG / T266-2011 "Foamed Concrete" for foaming agent performance test. The foaming agent prepared in this example was prepared into A05 grade foam concrete, and the 3d strength, 28d strength and water absorption performance tests were performed. The test results are shown in Table 1.

Embodiment 2

[0022] Weigh 100 parts of water; 12 parts of potassium lauryl ether phosphate, 5 parts of lauryl amidopropyl hydroxysultaine, 4.5 parts of cocoic acid diethanolamide; 1.9 parts of gum arabic, 1 part of pentasodium triphosphate, ammonium chloride 0.6 parts; 2.5 parts of sodium sulfate, 2 parts of sodium carbonate; 2 parts of sodium methyl silicate, mix all components evenly to get foaming agent. Refer to JG / T266-2011 "Foamed Concrete" for foaming agent performance test. The foaming agent prepared in this example was prepared into A05 grade foam concrete, and the 3d strength, 28d strength and water absorption performance tests were performed. The test results are shown in Table 1.

Embodiment 3

[0024] Weigh 100 parts of water; 14 parts of potassium lauryl ether phosphate, 6 parts of lauryl amidopropyl hydroxysultaine, 4 parts of cocoic acid diethanolamide; 1.5 parts of gum arabic, 1.8 parts of pentasodium triphosphate, ammonium chloride 1 part; 1.6 parts of sodium sulfate, 2.2 parts of sodium carbonate; 1.4 parts of sodium methyl silicate, and prepare by uniformly mixing all components to obtain a foaming agent. Refer to JG / T266-2011 "Foamed Concrete" for foaming agent performance test. The foaming agent prepared in this example was prepared into A05 grade foam concrete, and the 3d strength, 28d strength and water absorption performance tests were performed. The test results are shown in Table 1.

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Abstract

The invention provides an early-strength waterproof foaming agent for foam concrete. The foaming agent comprises the following raw materials in parts by weight: 100 parts of water; a foaming component, including 9 to 15 parts of potassium lauryl ether phosphate, 4 to 8 parts of lauramidopropyl hydroxysulfobetaine and 3 to 6 parts of coco fatty acid diethanolamide; a foam stabilizing component, including 1 to 2 parts of Arabic gum, 0.8 to 2 parts of pentasodium triphosphate and 0.5 to 1.2 parts of ammonium chloride; an early strength component, including 1.5 to 3 parts of sodium sulfate and 1 to 2.5 parts of sodium carbonate; and a waterproof component, including 1.2-2.5 parts of methyl sodium silicate. The early-strength waterproof foaming agent can improve foam stability and the stabilityof foam concrete slurry, increase the pouring height of disposable foam concrete, enhance construction efficiency and improve the early strength and the waterproofness of the foam concrete.

Description

【Technical field】 [0001] The invention relates to the field of building materials, in particular to an early-strength waterproof foam concrete foaming agent. 【Background technique】 [0002] In recent years, due to its light weight, high fluidity, thermal insulation, and high construction efficiency, foam concrete has been used more and more in abutment backfill, subgrade filling, roof insulation, lightweight thermal insulation wall panels, and tunnel top load-reducing backfill. However, in the process of market application, there are problems such as poor stability of the foamed concrete slurry prepared by the foaming agent, collapse of the mold, poor one-time pouring height, and high water absorption due to the poor stability of the foaming agent. A large number of applications in foam concrete also have problems such as low early strength that lead to slow construction progress, which affects the further promotion and use of foam concrete. [0003] In order to solve the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/42
CPCC04B40/0039C04B24/003C04B24/16C04B24/124C04B24/38C04B22/16C04B22/124C04B22/147C04B22/10C04B24/42
Inventor 陈松和高庆强陈乘鑫郑敏升林顺官张勇林陈维灯
Owner FUJIAN CONSTR ENG GRP BUILDING MATERIAL SCI & TECH DEV
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