An Experiment Study on Partial Replacement of Cement with Metakaolin in High Performance Concrete

Cement concrete is the most extensively used construction material. Maintenance and repair of concrete structures is a growing problem involving significant expenditure. HPC is the latest development in concrete. It has become very popular and is being used in many prestigious projects such as Nuclear power projects, flyovers multi-storeyed buildings. When using HPC, the addition of supplementary materials in cement has dramatically increased along with the development of concrete industry, due to the consideration of cost saving, energy saving, environmental concerns both in terms of damage caused by the extraction of raw materials and carbon dioxide emission during cement manufacture have brought pressures to reduce cement consumption. Metakaolin looks to be a promising supplementary cementitious material for high performance concrete. Properties of concrete with metakaolin is mostly preferred additives in high performance concrete. A possible lower cost, due to large availability in our country itself may be advantages to metakaolin usage in HPC. The substitution proportion of metakaolin is to be used was 0%, 5% and 10% by the weight of cement. In this project, experimental study was carried out on M-40 grade of concrete. To make this cubes, cylinders, prisms and Rcc beams to determine the strength and durability of concrete of it. The results indicate that the replacing mix upto till last percent has to noted and effect on strength in comparing with mixer without metakaolin.