Sound-absorbing room building floor structure

Abstract

The invention relates to an indoor building structure of a house, and discloses a sound-absorbing room building floor structure. The problems that an existing sound-absorbing room building floor structure is limited by a floor structure, water vapors are difficult to volatilize after the sound-absorbing layer is wet, and the sound absorbing effect is reduced for a long time are solved, according to the technical scheme, the structure comprises a lower keel and an upper keel which are horizontally and vertically erected and a lining, a sound absorbing panel and a topping board which are superposed on the upper keel from bottom to top, and the structure is characterized in that the sound absorbing panel further comprises a sound absorbing layer, the sound absorbing layer is prepared from, bymass, 90-125 parts of an epoxy resin and 140 parts of sound absorbing powder, the sound absorbing powder is shell powder dried after low temperature soaking of an eluate, the eluate is a 4 wt% urea / 8wt% aqueous solution, a soaking temperature is 15-12 DEG C, a soaking time is 10-15 min, the mass ratio of the eluate to the shell powder to be soaked is 10:3, the shell powder has a particle size of80-100 nm, and the sound-absorbing panel with good pressure bearing strength and moisture-proof performance is installed to avoid the reduction of the sound absorption effect on a room building floorin a wet environment.

Description

technical field [0001] The invention relates to a house indoor building structure, in particular to a sound-absorbing room building floor structure. Background technique [0002] With the development of modern housing construction and the improvement of living needs, the current sound-absorbing room building floor structure is no longer just a direct floor panel laid and fixed on the indoor ground. For the increasing requirements, the building floor structure has made corresponding Improve. [0003] as attached Figure 4 As shown, the existing house floor structure includes a lower keel 1 , an upper keel 2 , a lining board 3 , a sound-absorbing board 4 and a surface board 5 . The lower keel 1 and the upper keel 2 are elongated, and the number of the two is multiple and depends on the size of the indoor laying area. The lower keels 1 are distributed at equal intervals, and at the same time, a plurality of pads 11 are arranged at intervals on the bottom surface of each lower...

AI Technical Summary

Problems solved by technology

Its shortcoming is that after the existing sound-absorbing panel 4 is infiltrated by the liquid seeping down above the surface layer 5 or the water vapor rising below the lower keel 1, due to the limitation of the floor structure, the water vapor in the sound-absorbing panel 4 is difficult to volatilize and remove, resulting in Long-term reduction in sound absorption

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