Ramakrishnan, Muthu, Venkata Subramaniam , Koushik

ABSTRACT

Metakaolin is one of the widely developing cementitious material used as an admixture to produce high strength concrete and is used for maintaining consistency of concrete. In the case where sufficient or poor curing concrete structures like the sea shores, underground structures get affected by loss of compressive strength, permeability and durability, use of metakaolin proves to be very useful to modify the properties of concrete. This project deals with the properties of concrete by replacement of metakaolin. The mix were obtained by replacing 0, 5, 7.5, 10, 12.5, 15 percent mass of cement by metakaolin. Finally, required specimens were tested to investigate the behaviour such as compressive strength and durability. The test result indicates optimum quantity of metakolin usage tend to increase the strength of concrete when compared with conventional one. Key words: Target mean strength, characteristic compressive strength, tolerance factor, cement, sp. Gravity, w/c.