Mechanical properties and durability for concrete using waste heat resistance glass (Pyrex Type) as coarse aggregate

Abstract

this study aims to investigate some mechanical properties along with durability against several sever environmental conditions of concrete using waste heat resistant glass (Pyrex glass) as a replacement of coarse aggregate with several replacement ratios. Study shows higher mechanical properties improvements by using this type of aggregate, compressive, tensile and flexural strengths were improved by 20%, 54% and 230% respectively by 75% replacement. Moreover, modulus of elasticity was also investigated, it was found that it is also increased from 2.3234 GPa for reference mixes to 2.8452 GPa for mixes with 75% aggregate replacement. The study also includes durability investigations against several severe environmentally conditions which are: acid attack and fire exposure, study shows significant improvement in resistance of Pyrex aggregate concrete against both sulphuric acid attack and fire exposure comparing with normal concrete.