Abstract
As per records of Transparency Market Research, yearly construction waste is expected to reach 2.20 billion tons by the year 2025. With such a large volume of construction and demolition trash, the 3R’s (Reduce, Reuse and Recycle) play a vital role in waste management. According to the EPA (Environmental Protection Agency), C&D garbage rose by 220 percent in metropolitan cities from 1990 to 2018. The present study focuses on usage of substitution by recycled coarse aggregate with natural coarse aggregates on the outskirts of major metropolitan centers, as well as crumb rubber, a waste created by tire waste disposal, to make the concrete more inexpensive and eco-friendlier. The study also supports the usage of crumb rubber waste that can be safely used for hydraulic structures with less load, such as weir structures or smaller check dams, while a 50 percent replacement of recycled coarse aggregate with natural coarse aggregate had the same strength as normal concrete, which is useful in sustainable concrete practices and can help reduce the generation of C & D waste. In this study, the concrete made up of using recycled aggregate is also mixed with steel fibers to enhance its workability.
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