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Core-shell structure sound insulation mortar and preparation method thereof

A core-shell structure and mortar technology, applied in the field of sound insulation materials, can solve the problems of poor sound insulation effect, difficulty in meeting the requirements of building sound insulation performance, poor dissipation of sound wave energy and sound wave ability, etc., to achieve effective absorption and dissipation, excellent sound insulation Effect, high industrial feasibility effect

Active Publication Date: 2019-11-05
ZHUHAI SINGYES RENEWABLE ENERGY TECH +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a sound-insulating mortar with a core-shell structure, aiming to solve the problem that the existing mortar absorbs sound wave energy and dissipates the sound wave ability after absorption, which leads to poor sound insulation effect and is difficult to meet the sound insulation performance of buildings. Technical issues such as requirements

Method used

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  • Core-shell structure sound insulation mortar and preparation method thereof
  • Core-shell structure sound insulation mortar and preparation method thereof
  • Core-shell structure sound insulation mortar and preparation method thereof

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preparation example Construction

[0046] The embodiment of the present invention also provides a method for preparing a sound-insulating mortar with a core-shell structure, comprising the following steps:

[0047] S10. Obtain rigid particles and elastic high polymers, add the rigid particles to the slurry of the elastic high polymers, mix uniformly, granulate, and screen to obtain sound-insulating particles with a core-shell structure;

[0048] S20. Obtain the formula amount of polymer, cement, fine sand and auxiliary materials, and mix the formula amount of the core-shell sound-insulating particles with the polymer, the cement, the fine sand and the auxiliary materials evenly to obtain the core Acoustic mortar for shell structures.

[0049] The preparation method of the sound-insulating mortar with the core-shell structure provided by the embodiment of the present invention, firstly, add the rigid particles to the slurry of the elastic polymer, mix evenly, granulate and screen to obtain the sound-insulating p...

Embodiment 1

[0054] A sound-insulating mortar with a core-shell structure, prepared by the following method:

[0055] In 1kg of rubber slurry, add 2kg of marble powder with a diameter not greater than 0.2 mm, and mix well. The obtained samples were cut and ground into particles, and screened to obtain sound-insulating particles with a core-shell structure with a particle size of less than 1 mm.

[0056] According to the mass ratio of core-shell structure sound insulation particles, 42.5MPa ordinary Portland cement, fine sand and polyvinyl acetate as 16:33:43:8, the core-shell structure sound insulation particles, 42.5MPa ordinary Portland cement, fine Mix sand and polyvinyl acetate evenly, and prepare a sound-proof mortar with a core-shell structure.

[0057] Put the sound-proof mortar powder into a cone mixer, add an appropriate amount of water, and stir for 15 minutes.

Embodiment 2

[0059] A sound-insulating mortar with a core-shell structure, prepared by the following method:

[0060] Add 2 kg of aluminum chips with a diameter not greater than 0.3 mm to 1 kg of polyurethane in a molten state, and mix well. The obtained samples were cut and ground into particles, and screened to obtain sound-insulating particles with a core-shell structure with a particle size of less than 2 mm.

[0061] According to the mass ratio of core-shell structure sound insulation particles, 42.5MPa ordinary Portland cement, fine sand and polyvinyl acetate as 17:34:42:7, the core-shell structure sound insulation particles, 42.5MPa ordinary Portland cement, fine Sand and polyvinyl acetate are mixed evenly to prepare a sound-insulating mortar with a core-shell structure.

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Abstract

The invention belongs to the technical field of sound insulation materials, and particularly relates to core-shell structure sound insulation mortar, which comprises core-shell structure sound insulation particles, wherein the core-shell structure sound insulation particle uses a rigid particle as a core and uses an elastic high polymer as a shell. According to the present invention, the sound insulating mortar rigid particle core has high density and large mass, and can effectively absorb and dissipate the vibration of sound waves, such that the sound wave energy can be well absorbed and dissipated through the damping vibration effect formed by the rigid particle core and the elastic polymer outer shell; and compared with the non-core-shell structure sound insulation particles formed by the pure elastic high polymer particles, the core-shell structure sound insulation particles of the present invention can effectively absorb and dissipate the vibration of sound waves so as to obtain excellent sound insulation effect.

Description

technical field [0001] The invention belongs to the technical field of sound insulation materials, and in particular relates to a sound insulation mortar with a core-shell structure and a preparation method thereof. Background technique [0002] With the development of social science and technology, the requirements for buildings are getting higher and higher, and noise control is one of them. National standards have their requirements for the noise of building floors, such as GB / T50121-2005 "Building Sound Insulation Evaluation Standard", GB 50118-2010 "Code for Design of Sound Insulation of Civil Buildings", GB 50368-2005 "Code for Residential Buildings", GB / T 19889.7-2005 "Measurement of Sound Insulation of Acoustic Buildings and Building Components Part 7: Field Measurement of Floor Impact Sound Insulation" There are requirements for this. On the one hand, with the advancement of urbanization, the residential population density is getting higher and higher, and resident...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B20/10C04B111/52
CPCC04B28/04C04B20/1033C04B20/1037C04B2111/52C04B14/06C04B24/283C04B14/285C04B14/34Y02W30/91
Inventor 周吉祥罗多邓鑫孙金礼张玲黄涛罗栓
Owner ZHUHAI SINGYES RENEWABLE ENERGY TECH
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