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A kind of alkali slag foamed concrete sound-absorbing material and its preparation method

A foamed concrete and sound-absorbing material technology, applied in the field of building materials, can solve the problems of high production energy consumption and complex preparation process, and achieve the effects of high template utilization rate, simple process and wide source.

Active Publication Date: 2019-11-12
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production of foam concrete portland cement sound-absorbing materials can be summarized as a "two grinding and one burning" process, which is mainly divided into three steps. First, the solid raw materials are ground into raw materials, followed by high-temperature calcination of raw materials and clinker, and finally the clinker is ground Fineness into the specified fineness, high energy consumption per unit product production, and complicated preparation process

Method used

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  • A kind of alkali slag foamed concrete sound-absorbing material and its preparation method
  • A kind of alkali slag foamed concrete sound-absorbing material and its preparation method
  • A kind of alkali slag foamed concrete sound-absorbing material and its preparation method

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Effect test

Embodiment 1

[0026] An alkali slag foamed concrete sound-absorbing material, wherein the components are calculated by weight percentage: granulated blast furnace slag 60.76%, water glass 14.7%, water 23.28%, hydrogen peroxide 0.36%, potassium permanganate 0.06%, stearin Calcium acid 0.73%, polypropylene fiber 0.11%;

[0027] Wherein, the bulk density of the alkali slag foamed concrete is 894kg / m 3 .

[0028] A preparation method of alkali slag foamed concrete sound-absorbing material, comprising the following steps:

[0029] S1. Pour the granulated blast furnace slag and calcium stearate powder into the mixer according to the proportion and stir for 3 minutes, and mix evenly;

[0030]S2. Mix water glass, potassium permanganate and water according to the proportioning ratio, and stir to form a solution, then pour the obtained solution into the powder obtained in step S1 and fully stir for 45 seconds to make a slurry;

[0031] S3. Mixing and stirring the polypropylene fiber and the slurry...

Embodiment 2

[0035] An alkali slag foamed concrete sound-absorbing material, wherein the components are calculated by weight percentage: 59.39% of granulated blast furnace slag, 18.1% of water glass and sodium hydroxide, 20.94% of water, 0.36% of hydrogen peroxide, and 0.06% of potassium permanganate %, calcium stearate 0.71%, polypropylene fiber 0.44%;

[0036] Wherein, the weight ratio of the water glass and sodium hydroxide composition is water glass: sodium hydroxide=1:8, and the bulk density of the alkali slag foamed concrete is 928kg / m 3 .

[0037] A preparation method of alkali slag foamed concrete sound-absorbing material, comprising the following steps:

[0038] S1. Pour the granulated blast furnace slag and calcium stearate powder into the mixer according to the proportion and stir for 3 minutes, and mix evenly;

[0039] S2, mixing water glass, sodium hydroxide, potassium permanganate and water according to the proportion, stirring evenly to form a solution, then pouring the ob...

Embodiment 3

[0044] An alkali slag foamed concrete sound-absorbing material, wherein the components are calculated by weight percentage: 58.88% of granulated blast furnace slag, 18.46% of sodium hydroxide, 21.53% of water, 0.35% of hydrogen peroxide, 0.06% of potassium permanganate, hard Calcium fatty acid 0.71%, polypropylene fiber 0.01%;

[0045] Wherein, the bulk density of the alkali slag foamed concrete is 928kg / m 3 .

[0046] A preparation method of alkali slag foamed concrete sound-absorbing material, comprising the following steps:

[0047] S1. Pour the granulated blast furnace slag and calcium stearate powder into the mixer according to the proportion and stir for 3 minutes, and mix evenly;

[0048] S2, mixing sodium hydroxide, potassium permanganate and water according to the proportioning ratio, stirring evenly to form a solution, then pouring the obtained solution into the powder obtained in step S1 and fully stirring for 45 seconds to make a slurry;

[0049] S3. Mixing and ...

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Abstract

The invention discloses an alkali slag foamed concrete sound absorption material and a preparation method thereof. The sound absorption material comprises granulated blast furnace slag, an alkali activator, a foaming agent, a catalyst, a foam stabilizer and a crack arresting agent, wherein the component of an alkali slag gel is blast furnace slag, the alkali activator is one kind or two kinds of combinations of water and sodium hydroxide, the foaming agent is hydrogen peroxide, the catalyst is potassium permanganate, the foam stabilizer is calcium stearate, and the crack arresting agent is one kind or two kinds of combinations of polypropylene fiber and polyvinyl alcohol fiber; in addition, water with a certain weight percentage is added in producing. According to the method, the obtained alkali slag foamed concrete sound absorption material has the advantages of green environmental protection, low cost, and high durability. The preparation method has the advantages of low energy consumption and environmental friendliness.

Description

technical field [0001] The invention relates to the technical field of building materials, and relates to sound-absorbing materials, in particular to an alkali slag foamed concrete sound-absorbing material and a preparation method thereof. Background technique [0002] At present, noise pollution has become one of the main environmental problems complained by urban residents. In order to reduce the impact of noise on the surrounding environment and human beings, sound absorption is one of the important measures to improve indoor sound quality and control noise. According to the difference of sound absorption mechanism, sound-absorbing materials can be divided into two categories: porous sound-absorbing materials and resonant sound-absorbing structures (perforated plates). Porous sound-absorbing materials are mainly mineral wool, glass wool, felt, wood wool sound-absorbing panels, etc., which have good medium and high frequency absorption and are easy to produce, but their fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/08C04B38/02C04B111/52
CPCC04B28/082C04B2111/52C04B2201/20C04B2201/50C04B12/04C04B22/068C04B22/08C04B24/085C04B16/0633C04B38/02C04B22/062
Inventor 谢辉刘俊超吴会飞
Owner CHONGQING UNIV
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