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.
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