ENHANCING STRENGTH AND DURABILITY OF CONCRETE THROUGH PARTIAL REPLACEMENT OF CEMENT WITH GRANITE SLURRY AND AGGREGATES WITH QUARTZ STONE
Keywords:
Durability, chemical attack, Rice husk ash, compressive strength, Permeability test, Rapid chloride test, acid attack test, chloride attack test.Abstract
The durability of concrete is crucial for its ability to withstand various forms of
deterioration, including weathering, chemical attack, abrasion, and other processes, while
maintaining its structural integrity, strength, and functionality in its intended environment. Concrete's
strength is the result of meticulous planning, proportioning, placement, curing, testing, inspection,
and curing processes. India ranks as the second-largest consumer of cement globally, following
China. However, the cement industry's operations contribute to approximately 10% of the world's
carbon dioxide emissions, impacting the climate and ecosystem equilibrium. The substantial
infrastructure development in India has propelled the nation to become a significant consumer of
building materials, emphasizing the importance of durability over strength. The manufacturing
processes of granite and quartz stones generate substantial amounts of slurry and waste, posing
environmental challenges due to their haphazard disposal practices. Repurposing this waste material
offers a solution to address both waste generation and natural resource depletion concerns. This study
undertakes an exploratory assessment to evaluate the durability of M40 grade concrete by utilizing
granite slurry as a cement substitute and quartz as coarse aggregates. Various aspects including
workability, compressive strength, resistance to acid, alkaline, chloride, and sulfate attacks, as well as
the results of the Rapid Chloride Test and porosity tests, are examined separately for concrete
samples cured for 56 and 84 days.
