Experimental Study on the Partial Replacement of the Cement with Waste Marble Dust and Fine Aggregate with CRT Waste

Abstract

Abstract: The attention of the world towards sustainable development is one of the major concerns from the past few years. This act of using huge volume of natural aggregates in construction industry leads to the shortage of natural aggregate in construction process. The latest trend in construction industry is to use alternate materials which can be best substitute of natural aggregates so that there is no compromise in terms of strength and durability considerations of structure. Reusing waste materials as an alternative to natural aggregates can help in reducing environmental problems, pollution, waste disposal and global warming. From the last few years, it has been found that the waste generated from demolition of construction site and old structures is increasing at more rapidly. Thus, reusing and recycling these wastes may reduce the usage of natural aggregates and thus contribute in reducing environmental hazards. In the present experimental work, the natural fine aggregates are partially replaced by crushed CRT Glass aggregates with replacement ratio of 0%, 5%, 10%, 15% and 20% and cement is partially replaced by marble dust with replacement ratio of 0%, 5%, 10%, 15% and 20%. Five different mixes of were prepared and based on the results. In this experiment, five different mixes of combined Marble Dust and crushed CRT aggregates were used in the present study. The different mixes are studied for mechanical and durability properties of M-35 concrete. The results have demonstrated that the concrete mixes with 5% CRT aggregates and 10% marble dust replacement gives compressive strength and split tensile strength slightly more than the normal design mix.