COMPARISON BETWEEN WASTEGLASSANDGRAVELFORWORKABILITY AND STRENGTH OFCONCRETEGRADE

Abstract

A massive amount of glass waste is produced every year all over the world, but a small amount of this waste is being recycled. The recycling of waste glass (WG) in concrete shows great achievements in reducing the quantity of glass. According to researchers’ addition of waste glass in concrete enhances the properties of concrete, WG can be used in any form like powder, fine or coarse aggregate. However, from previous studies of different researchers, it has been found that there are some ill effects of waste glass on concrete. This inconsistency of results of waste glass between researchers affects the acceptance (using) of waste glass in concrete structures. To overcome the formal problem the study clarifies the debate of using or not using the waste glass in concrete depending on the analysis of different papers. In this study, an attempt was made to experimentally evaluate the mechanical properties of concrete with recycled glasses. The control mix was made and the other mix containing waste glasses as replacement of coarse aggregates. According to the slump test, the slump value of control mix was 70mm and slump value of other mix containing glasses was 95mm. the compressive strength too has decreased by39.9percentage.the maximum compressive strength of a control mix after 28days of curing was 19.7 KN/m2 while the other mix with waste glasses was 11.8 KN/m2. The incorporating of waste glasses can highly reduce compressive strength due to its lower bonding capacity in the mix but this substitutional helps reduce waste glasses pollution.