Evaluating effects of granulated glass on structural and seismic behavior of tall RC structures using experimental tests and 3D modeling

Abstract

The use of waste materials for reinforcement of reinforced concrete (RC) structures is of great importance for both environmental cleaning and recycling. In this study, the effects of granulated glass released by factories on the structural behavior of RC structures are examined in detail. Initially, 5 different concretes are produced using 5 different granulated glass percentages. Granulated glass is used instead of aggregate. Different aggregate ratios of granulated glass are taken into account for each sample. 5 different concrete samples are subjected to the slump test and the consistency of the concrete samples is assessed in detail. Then, each concrete sample is subjected to compressive strength tests. It is clearly seen from the compressive strength tests that granulated glass increased the strength of the concrete noticeably. Then, the 31-story reinforced concrete structure is modeled considering the most critical granulated glass ratio. The 1995 Kobe earthquake is utilized for the seismic analyses. Firstly, the RC structure is analyzed for the pure concrete and then, analyses are performed for various granulated glass added cases. According to the analysis results, granulated glass significantly increased the earthquake resistance of reinforced concrete structures. Furthermore, waste granulated glass caused enormous reductions in the weight of the structure. In this study, it is concluded that granulated glass material, which is found in nature as waste, can be used for the construction of RC structures.