In this work the preparation of viscoelastic bio-based polyurethane foams (PUFs) using
polyols obtained via acid liquefaction of coffee grounds wastes has been optimized. In a first …

Impact noise is a major sound transmission problem in concrete buildings that severely
affects the quality of life of residents. The impact insulation of a concrete floor can be …

Sound control in office and living environments is cruical for creating a peaceful and relaxing
occupation for individuals. Improvement of sound absorption properties of textile materials …

Acoustic performance is a building and users requirement, sometimes neglected, which
commonly causes discomfort to the neighborhood. Subfloors with acoustic insulation …

A hybrid method for predicting inter-floor impact noise in an apartment house is developed.
Statistical Energy Analysis (SEA) is useful for predicting mid-to high-frequency noise by …

This study aims to reduce heavy weight impact sound, changing the sound field by applying
sound absorbing ceiling. Sound absorption performance is reviewed at the reverberation …

Cross-laminated timber (CLT) is an increasingly popular building material due to its
sustainability and structural performance. This study investigates the impact sound of CLT …

Apartment houses have been continuously constructed in Korea to solve overcrowding in
large cities. The interlayer noise arising from these apartment houses has now become a …

Standard measurement methods of impact sound insulation of floor coverings (resilient
surface layers) in laboratory are stated on Standard ISO 10140 series. Laboratory test allows …

Floor mats are commonly used to improve the impact sound performance of existing homes,
but actual impact sound reductions do not consistently appear, as they depend on the test …