The relevance of gypsum materials in the context "Eco-construction" is beyond doubt, since exactly building material that fully meets requirements ecology and environ-mental protection. Improving efficiency by creating new modi-fied with improved technical operational characteristics currently remains an im-portant urgent task. In conditions energy resource saving due to lack need build product...

The increment in the number of automobiles and densification city has increased noise pollution rates. In addition, lack regulation Chile regarding acoustic insulation fa¸cades is a problem growing concern. main objective present study was to obtain model Sound Insulation housing, facades, stratified Santiago, Chile, based on constructive variables. It expected serve as basis for one future fac...

Sound insulation performance of partitions is one the key factors contributing to comfort hotel interior spaces. Based on theory constrained layer damping, this study proposed light-weight composite partition structure with high sound insulation, which was composed gypsum boards different thicknesses and an isobutylene isoprene rubber board. The normal incidence transmission loss evaluated thro...

In his 1942 paper on the sound insulation of single leaf walls, Cremer [(1942). Akust. Z. 7, 81-104] made a number of approximations in order to show the general trend of sound insulation above the critical frequency. Cremer realized that these approximations limited the application of his theory to frequencies greater than twice the critical frequency. This paper removes most of Cremer's appro...

noise level intensity in cities, due to the daily increasing sources of noise producing agents in one respect, and the lack of noise absorbants in the other respect, is rising. the high influence of intense noises on the human body and mind are found to have detrimental effects. the ideal is to have an optimal condition of noise. in this paper the living and relaxing areas, in view of main acou...

This paper aims to contribute to acoustical comfort in buildings by presenting a study about the polymer waste micronized poly (ethylene vinyl acetate) (EVA) to be used in mortars for impact sound insulation in subfloor systems. The evaluation method included physical, mechanical and morphological properties of the mortar developed with three distinct thicknesses designs (3, 5, and 7 cm) with r...