Experimental Study of Floor Impact Sound Insulation by the Finishing Materials and Porous Ratio of Insulations of Floor Structure in Mock-up Test Room

모형실험실에서 바닥충격음 완충재의 발포율 및 바닥마감재의 변화에 따른 충격음 차단성능에 대한 실험적 연구

It is increasing the interest on the comfortable dwelling environment and the efforts to solve the problem of the floor impact noise in apartment houses have been realized, as a result numerous products have been made. The purpose of this study is to investigate the sound insulation performances according to foaming rate of floor impact noise insulators and flooring coverings in Mock-up Test Room. The test results of impact insulation performance for each floor impact noise insulators is that double structure of insulator is excel than one in low-middle frequency band and as foaming rate go up, the sound insulation performance is improved.