Investigating the Strength Enhancement in Cement Concrete through Experimental Study on the Influence of Rice Husk Ash

Abstract

Portland cement, renowned as the cornerstone of concrete, is a versatile yet relatively costly
material. However, large-scale cement production presents a dual threat to the environment,
causing ecological damage and eliminating essential natural resources. In response to these
pressing concerns, researchers have turned to industrial byproducts as supplementary
cementitious materials to mitigate the environmental impact. This study's main goal was to
investigate the mechanical properties of concrete by partially replacing cement (OPC-53grade)
with rice Husk Ash (RHA). The research focused on M30 grade concrete, incorporating RHA at
varying proportions of 10%, 15%, and 20%. This comprehensive study delved into the
compressive and flexural strengths of the concrete at 7 and 28 days of age. Using rice Husk Ash
(RHA) as a partial replacement for Portland cement in critical infrastructure projects holds
promise for advancing sustainable development in the construction industry. This research
highlights the positive impact on concrete mechanical properties, specifically noting a significant
increase in compressive strength. This innovation contributes to cost reduction in construction
projects and addresses environmental concerns associated with large-scale cement production.
Substituting RHA into concrete mixes can promote more resilient and eco-friendly infrastructure,
aligning with sustainable development goals.