Floor impact noise performance of prefabricated prestressed joists and block slabs with wooden laminate floors

Abstract This research aims to discuss and determine acoustic performance values for impact noise insulation (L’nT,w) 39 floor system compositions that have different resilient materials wooden laminate finishing. The methodology is organized according ISO 16283-2, 717-2 NBR 15575-3 classification. results obtained demonstrate the prefabricated ribbed slab with prestressed joists ceramic slabs, as well subfloor do not meet minimum requirements insulation, comprising of 91 84 dB, respectively. Among other 37 samples, it worth mentioning floors better abrasion resistance more efficient concerning performance, ranging from 60 62 due its surface density. In samples use materials, vary 55 46 dB.