Concrete Technology and Standard Practice for Block Masonry

Abstract

Due to their low specific gravity, concrete created with naturally occurring light weight aggregate derived from hard rock has a small range of density (300kg/m3-1840kg/m3) as opposed to regular concrete, which has a density between (2200kg/m3-2600kg/m3).Over 2,000 years have passed since the invention of lightweight concrete (ACI 213R; American Concrete Institute [ACI], 2003). The Coliseum, Pantheon Dome, and Port of Cosa are examples of early LWC constructions. Compared to conventional weight concrete, structural LWC structures are employed significantly less frequently today. The high porosity of light weight aggregates, which results in a low apparent specific gravity, is one of its key properties. While some low weight aggregates are produced artificially or from industrial waste, others are produced naturally.