Dev Kapoor
Independent Researcher
India
Abstract
This study investigates the durability performance of concrete incorporating silica fume and fly ash as supplementary cementitious materials (SCMs). The focus is on assessing the concrete’s resistance to chloride penetration, sulfate attack, and water absorption, which are critical factors affecting structural longevity. Concrete mixes with varying proportions of silica fume and fly ash were prepared and subjected to accelerated durability tests in a laboratory environment. Statistical analysis of test results showed that replacing a portion of cement with silica fume and fly ash significantly improves the durability parameters compared to conventional concrete. The research also included simulation modeling to predict long-term performance under aggressive environmental conditions. Results indicate an optimal mix design that balances durability enhancement and cost-effectiveness. This study provides valuable insights into sustainable concrete design incorporating industrial by-products while improving structural life expectancy.
Keywords
Concrete durability, silica fume, fly ash, chloride penetration, sulfate attack, supplementary cementitious materials
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