Echo-preventing wall board

Abstract

The invention discloses an echo-preventing wall board. The echo-preventing wall board comprises a perlite board, wherein the perlite board is internally provided with a plurality of cavities; the cavities are arranged along the width direction of the perlite board and are uniformly distributed in the height direction of the perlite board; a honeycomb-shaped supporting piece is arranged on one face of the perlite board; a plurality of micro-pores which are communicated with the cavities are formed in one face, which is provided with the honeycomb-shaped supporting piece, of the perlite board; sound absorption materials are stuck on the inner wall and the bottom face of the honeycomb-shaped supporting piece; the cavities of the perlite board are internally filled with sound absorption materials; a magnesium oxychloride cement board is arranged on the other face of the perlite board; one faces, which are far away from each other, of the honeycomb-shaped supporting piece and the magnesium oxychloride cement board are provided with a first decorative face layer and a second decorative face layer. According to the echo-preventing wall board, the combination of the honeycomb-shaped supporting piece, the cavities of the perlite board and the sound absorption materials is sufficiently utilized to effectively absorb and attenuate sound waves so that the aim of preventing echoes is realized.

Description

technical field [0001] The invention relates to an interior wallboard, in particular to an anti-echo wallboard. Background technique [0002] With the improvement and development of construction technology, there are more and more chances of using wall panels on the walls between buildings, so the requirements for wall panels are also very high, especially in many buildings facing the street, there is a lot of traffic outside and the noise is very loud Therefore, the requirement for the internal wall surface is not only to have good compressive performance, but also to have a certain anti-echo effect. [0003] We know that when sound is projected onto a large area at a distance from the sound source, part of the sound energy is absorbed, while the other part of the sound energy is reflected back. If the time interval of the reflected sound exceeds one-tenth of a second, we hear two sounds, but if the time interval is short, what we hear is a strengthened sound. If it is noi...

AI Technical Summary

Problems solved by technology

[0003] We know that when sound is projected onto a large area at a distance from the sound source, part of the sound energy is absorbed, while the other part of the sound energy is reflected back. If the time interval of the reflected sound exceeds one-tenth of a second, we hear two sounds, but if the time interval is short, what we hear is a strengthened sound. If it is noise, it will have an impact on people's hearing. Very uncomfortable, so how to prevent echo is a problem that needs to be solved

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