Hydrophobic thermal-insulation sound-insulation foam concrete and preparation method thereof

A technology of foam concrete, thermal insulation and sound insulation, which is applied in the field of building sound insulation and thermal insulation materials, can solve the problems of poor thermal insulation and sound insulation performance, improve thermal insulation performance and sound insulation performance, improve crack resistance and stability, and improve foam The effect of stability

Active Publication Date: 2021-12-17
CHINA WEST CONSTR ACAD OF BUILDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above deficiencies, the purpose of the present invention is to provide a kind of hydrophobic thermal insulation and sound insulation foam concrete and its preparation method, which can effectively solve the problems of poor thermal insulation and sound insulation performance of existing foam concrete.

Method used

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  • Hydrophobic thermal-insulation sound-insulation foam concrete and preparation method thereof
  • Hydrophobic thermal-insulation sound-insulation foam concrete and preparation method thereof
  • Hydrophobic thermal-insulation sound-insulation foam concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041]This example provides a kind of hydrophobic thermal insulation and sound insulation foam concrete material, including the following components by mass: 50 parts of Portland cement, 18 parts of mineral admixture, 19 parts of water, 1.5 parts of water reducer, 4.5 parts of coagulant and 6 parts of complex foaming agent;

[0042] Wherein, the composition and mass ratio of composite foaming agent are 3 parts of blowing agent and 3 parts of composite water-repellent; Foaming agent is animal protein active foaming agent; Composite water-repellent comprises the component of following mass parts: 1 part of sodium silanolate, 0.5 part of calcium stearate, 3 parts of polypropylene emulsion and 7 parts of water; Portland cement is 52.5 grade Portland cement; its length is 1 mm to 4 mm, and the aspect ratio is 40 to 60:1 , tensile strength ≥ 3500MPa, elastic modulus ≥ 50GPa, elongation at break ≥ 2.5%, maximum working temperature ≥ 600°C; coagulant consists of the following raw mate...

Embodiment 2

[0053] The components and mass ratio of an ultra-light foam concrete material are 50 parts of Portland cement, 18 parts of mineral admixture, 3 parts of short inorganic fiber, 19 parts of water, 1.5 parts of water reducing agent, 4.5 parts of coagulation accelerator, 6 parts of complex foaming agent;

[0054] Wherein, the composition and mass ratio of composite foaming agent are 3 parts of blowing agent and 3 parts of composite water-repellent; Foaming agent is animal protein active foaming agent; Composite water-repellent comprises the component of following mass parts: 1 part of sodium silanolate, 0.5 part of calcium stearate, 3 parts of polypropylene emulsion and 7 parts of water; Portland cement is 52.5 grade Portland cement; short inorganic fiber is basalt fiber; its length is 1mm ~ 4mm, long diameter The ratio is 40~60:1, the tensile strength is ≥3500MPa, the elastic modulus is ≥50GPa, the elongation at break is ≥2.5%, and the maximum working temperature is ≥600℃; the co...

Embodiment 3

[0065] The components and mass ratio of an ultra-light foam concrete material are 50 parts of Portland cement, 18 parts of mineral admixture, 3 parts of short inorganic fiber, 19 parts of water, 1.5 parts of water reducing agent, 4.5 parts of coagulation accelerator, 6 parts of complex foaming agent;

[0066] Among them, the composition and mass ratio of the complex foaming agent are 3 parts of foaming agent, 3 parts of composite water repellent, and 0.06 parts of stabilizer; the foaming agent is an animal protein active foaming agent; the stabilizer is a nonionic surfactant , the nonionic surfactant comprises the following components by mass: 1 part of methyl cellulose, 1 part of ethyl cellulose, 1 part of hydroxypropyl methyl cellulose, 3 parts of starch ether and 1 part of lithium carbonate; The water-repellent agent includes the following components by mass: 1 part of sodium methyl siliconate, 0.5 part of calcium stearate, 3 parts of polypropylene emulsion and 7 parts of w...

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Abstract

The invention discloses hydrophobic heat-insulation sound-insulation foam concrete and a preparation method thereof, and belongs to the technical field of building sound-insulation heat-insulation materials, the hydrophobic heat-insulation sound-insulation foam concrete comprises the following components by mass: 40-60 parts of Portland cement, 5-25 parts of a mineral admixture, 1-3 parts of inorganic short fiber, 15-30 parts of water, 0.5-1.5 parts of a water reducer, 4-6 parts of a coagulant and 6-12 parts of a composite foaming agent. The ultra-light foam concrete material prepared by combining the inorganic short fibers, the coagulant and the composite foaming agent has the dry density of less than or equal to 150kg / m<3>, excellent heat insulation performance and waterproof performance, the volume water absorption rate of less than or equal to 5%, and the heat conductivity coefficient of less than or equal to 0.040 W / (m.K); and the problems that existing foam concrete is poor in heat insulation and sound insulation performance and the like can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of building sound insulation and thermal insulation materials, in particular to a hydrophobic thermal insulation and sound insulation foam concrete and a preparation method thereof. Background technique [0002] Foam concrete is a Class A fireproof and thermal insulation material, which has the advantages of high strength and low cost. However, compared with organic thermal insulation materials, its thermal insulation and thermal insulation properties are at an obvious disadvantage, which greatly limits its application in the field of building energy-saving and sound insulation. Dry density≤300kg / m 3 The main purpose of the ultra-light foam concrete is as a wall cavity filling material for the preparation of structural insulation integrated wall materials to improve the thermal insulation performance of building structures; it can also be used for roof insulation and floor insulation, and can also be used ...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B38/10C04B24/42C04B24/38C04B22/14C04B14/46C04B14/40C04B111/27C04B111/28C04B111/52C04B103/12C04B103/65C04B103/48
CPCC04B28/04C04B40/0039C04B14/46C04B14/4656C04B14/4625C04B14/40C04B2111/52C04B2111/28C04B2111/27C04B2201/20C04B2201/32C04B2103/12C04B2103/65C04B2103/48C04B18/08C04B2103/302C04B24/14C04B38/10C04B24/383C04B24/38C04B22/10C04B24/42C04B24/085C04B24/2641C04B22/0093C04B22/064C04B22/147C04B22/06Y02W30/91
Inventor 高育欣程宝军麻鹏飞康升荣史博元
Owner CHINA WEST CONSTR ACAD OF BUILDING MATERIALS CO LTD
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