HUMIDITY INTRUSION EFFECTS ON THE PROPERTIES OF SOUND ACOUSTIC OF AUTOCLAVED AERATED CONCRETE

Abstract

Autoclaved Aerated Concrete (AAC) has been commonly known to exhibit favorable thermal properties, hig h fire resistance and high compressive resistance at relatively low density. H owever, little attention has been devoted to the so und insulation performance of AAC. One of the points needs to know is humidity in trusion effects on AAC members in areas with high rhumidity levels of Mediterranean climates which are important in durab ility and insulation properties of AAC. Tests on me chanical and physical properties of ACC carried out to study humidity int rusion effects on AAC members were studied with and w/o coatings on the surfaces. From the findings of this study, physical and mechanical autoclaved aerated concrete evaluat ed in three different humidity levels to compare the effect of humidity on propert ies of AAC. According to test results coating is th e most important factor for improving resistivity of AAC walls, and these facto rs help AAC walls to keep their mechanical and phys ical properties against humidity. With its closed air pockets, AAC can prov ide very good sound insulation. This paper presents the results of studies on acoustic properties of AAC partitions aimed at iden tifying the effect of specific factors on AAC sound insulation performance.