MECHANICAL AND DURABILITY STUDIES ON HPC WITH REPLACEMENT OF FINE AGGREGATE WITH QUARTZITE
Keywords:
Aggregates, Quartzite Waste, Compressive Strength, Nondestructive Test, Durability CharacteristicsAbstract
The primary goal of this study is to identify substitutes for concrete that can meet the demands of cement and fine aggregate for the foreseeable future, provide sufficient strength at a reasonable cost, and create environmentally friendly structures. There is a great opportunity to use crushed quartzite, a waste industrial by-product of glass production, as an alternative to use fine aggregate. (In order to determine the ideal ratio of crushed quartzite waste, this study used M60 grade concrete with a W/C ratio of 0.29 and replaced 0 to 100% of the fine aggregate with crushed quartzite waste aggregate. In the present work Cement is partially replaced with optimum percentages of Fly Ash and Silica fume in 15% and 10%. The initial strength of crushed quartzite waste aggregate, which is intended to replace natural fine aggregate, was found to be between 3,7 and 28 days. Compressive strength test and non-destructive tests were performed after3, 7 and 28 days to examine the properties of concrete containing crushed quartzite, durability characteristics such as Alternate Wet and Dry analysis and Free Drying Shrinkage test were performed for both conventional and ideal concrete mixes. It was determined that 30% could be the ideal replacement rate for the crushed quartzite material.
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Copyright (c) 2023 C Thejaswini Veena, C Sasidhar , R Veera Sudarsana Reddy (Author)
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