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Efficient sound-absorbing ceramsite

A technology of ceramsite and sound absorption, which is applied in the field of building materials, can solve the problems of sludge pollution in urban pollution, damage to the balance of the ecological system, and increase of production costs, so as to improve market competitiveness, save natural resources, The effect of sound absorption frequency bandwidth

Inactive Publication Date: 2012-08-15
ZHEJIANG FANGYUAN BUILDING MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But on the one hand, the ceramsite mainly uses shale as the main raw material. Although it does not occupy land resources, excessive or excessive use will also cause the lack of earth resources, destroy the balance of the ecological system, and use shale to make ceramsite The swelling temperature of the ceramsite is relatively higher, the energy consumption is relatively high, and the production cost is increased. In addition, the ceramsite uses urban sludge, which reduces the urban environmental sludge to a certain extent. Good solution to the pollution problem of sludge in urban pollution

Method used

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  • Efficient sound-absorbing ceramsite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The high-efficiency sound-absorbing ceramsite is mainly made of the following raw materials in parts by weight:

[0052] Sludge: 80%; Shale: 8%; Fly ash: 5%; Admixture: 7.0%. The admixture has the ability to increase the porosity of the ceramsite.

[0053] The high-efficiency sound-absorbing ceramsite is prepared by the following method:

[0054] Weigh each raw material in the above weight percentage, put it into a mixer, knead evenly, put the above mixture into a crusher for crushing, age for 4 to 7 days, and then granulate to obtain pellets. The granulation described above is divided into secondary granulation. For the first time, it is granulated by double rollers for 5 to 8 minutes, and for the second time, it is granulated by a granulation roller for 4 to 10 minutes. The particle size of the pellets after granulation is 2 to 20mm. Then put the above pellets into the rotary kiln for preheating, the preheating temperature is 220°C-400°C, the preheating time is 15-2...

Embodiment 2

[0056] The high-efficiency sound-absorbing ceramsite is mainly made of the following raw materials in parts by weight:

[0057] Sludge: 60%; Shale: 20%; Fly ash: 15%; Admixture: 5.0%. The admixture has the ability to increase the porosity of the ceramsite.

[0058] The method for preparing the high-efficiency sound-absorbing ceramsite is consistent with the method in Example 1, and will not be repeated here.

Embodiment 3

[0060] The high-efficiency sound-absorbing ceramsite is mainly made of the following raw materials in parts by weight:

[0061] Sludge: 65%; Shale: 15%; Fly ash: 10%; Admixture: 10%. The admixture has the ability to increase the porosity of the ceramsite.

[0062] The method for preparing the high-efficiency sound-absorbing ceramsite is consistent with the method in Example 1, and will not be repeated here.

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Abstract

The invention relates to an efficient sound-absorbing ceramsite, belonging to the technical field of a building material. Aiming to solve the problems that city pollution can not be well solved, product properties are poor, the poor sound-absorbing effects are poor and the production cost is high in the prior art by mainly using the shale as ceramsite, can be solved, The invention provides the efficient sound-absorbing ceramsite, which is prepared from raw materials mainly consisting of raw materials of 60-80% of sludge, 5-20% of the shale, 5-20% of coal ash and 1.0-10% of additive. The efficient sound-absorbing ceramsite provided by the invention has the properties of wide sound-absorbing frequency band, fire resistance, good durability, freezing resistance, seismic resistance, high sound-absorbing coefficient, high porosity, light weight, high strength, heat resistance, anti-permeability and the like. The efficient sound-absorbing ceramsite further can be used for preparing a road barrier and a metro sound-absorbing material and has wide application prospect. Furthermore, the efficient sound-absorbing ceramsite provided by the invention mainly uses city sludge, so that not only can the problem of the city sludge be solved well, but also the overuse of a natural resource of the shale is reduced.

Description

technical field [0001] The invention relates to a ceramsite, in particular to a high-efficiency sound-absorbing ceramsite, which belongs to the technical field of building materials. Background technique [0002] With the rapid development of modern industrial production and the seriousness of environmental pollution problems, it has become more and more important and urgent to implement effective control of environmental pollution. Noise pollution, water pollution and air pollution are the most important factors affecting environmental problems. It is considered to be the three major pollutions in the world today, and for the problem of noise pollution, the current main solution is to use sound-absorbing materials for sound-absorbing and noise-reducing treatment. [0003] Early sound-absorbing materials mainly used natural fiber organic materials such as cotton, hemp, and felt. Although such materials have low cost, wide sound absorption frequency range, and simple product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B38/06C04B14/02
CPCY02P40/60
Inventor 杨晓华崔清泉杨博朱国满刘健杨飞
Owner ZHEJIANG FANGYUAN BUILDING MATERIALS TECH
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