Abstract
Abstract Studies conducted up to the present moment by researchers around the world show that the evaluation of impact noise depends both on the combined system of floor and on the type of impact source used in measurements. This implies that a particular solution for reducing the impact sound pressure level could work with great efficiency when using a tapping machine and not work so well when using a different impact noise source. The objective of this study is to discuss the performance of materials against the standardized and non-standardized source, determining which of two types of sources is most efficient in simulating real cases. Results of groups measured with the non-standardized source show that all materials behave similarly and do not represent a wide range of options to solve heavy impact noise real problems as results measured with the tapping machine suggest.
Highlights
According to the World Health Organization, the noise generated by neighbors, classified as aerial and impact noise, is one of the biggest hassle factors in residential buildings (NIEMANN; MASCHKE, 2004)
The machine was first developed in Germany and standardized in 1953, and is, until today, the reference indicated by ISO 10140-3 (INTERNATIONAL..., 2010) and ISO 717-2 (INTERNATIONAL..., 2013)
The objective of this study is to discuss the performance of materials against the standardized and nonstandardized source, determining which of two types of sources is most efficient in simulating real cases
Summary
According to the World Health Organization, the noise generated by neighbors, classified as aerial and impact noise, is one of the biggest hassle factors in residential buildings (NIEMANN; MASCHKE, 2004). Nnoise disturbance caused by audio equipment with improved low-frequency response, electrical devices, mechanical services and mainly lightweight construction results in the aggravation of impact noise in residential buildings (ARAÚJO; PAUL; VERGARA, 2015). Among all those noises, human walking noise is considered the most annoying in residential buildings (PARK; LEE; SEOP YANG, 2016; JEON; RYU; LEE, 2010; JEON et al, 2004). The International Organization for Standardization indicates that a tapping machine should be used in laboratory and field measurements of impact sound insulation of floors. The standards indicate how floating floors should be constructed to achieve their best performance improving the sound insulation of apartments, where this type of noise can be a factor for discomfort between neighbors (JEON et al, 2004)
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