ISSN:1005-3026

EXPERIMENTAL INVESTIGATION OF CONCRETE BY PARTIAL REPLACEMENT OF CEMENT WITH CERAMIC POWDER & METAKAOLIN AND FINE AGGREGATE WITH BRICK DUST

Rochak Pandey

Assistant Professor, Department of Civil Engineering, Guru Ghasidas Vishwavidyalaya, Bilaspur (C.G), India

Abstract- Partial substitution of concrete constituents like cement, sand, and coarse aggregate with unconventional materials like industrial wastes, construction waste, and other materials has proved to be quite promising. Based on prior investigations, cement replacement in concrete with ceramic powder leads to improved performance in the range of 15-40% by weight, and metakaolin leads to enhanced performance in the replacement range of 15-30% by weight. This research work chronicles the experimental findings of the commission of concrete grade M20 with partial replacement of cement and fine aggregate in terms of strength and durability. The fine aggregate replacement with brick dust is kept constant at 25% by weight. Replacement of cement is done separately with ceramic powder at 10%, 20%, and 30% by weight and with metakaolin at 10%, 15% & 20% by weight. Each composition is tested for compression, split tensile and beam flexure strength. Further, each composition is tested for durability performance in terms of coefficient of capillary rise and chlorine bulk diffusion test. Based on the strength and durability test, the optimum replacement of cement is found to be 20% by ceramic powder ceramic and 15% for metakaolin, giving a cost-benefit of 670 & 386 rupees by ceramic replacement and 487& 203 rupees by metakaolin replacement per cubic meter of concrete as compared to conventional mix and mix with 25% fine aggregate replacement with brick dust respectively. This result clearly shows that ceramic and metakaolin powder can be used in concrete mixtures as cement replacement with improved strength & durability than conventional concrete and cost-effectiveness.

Keywords: Ceramic powder, Metakaolin, Brick dust, Strength, Durability, Cost Effectiveness, Sustainable Materials.