STUDIES ON THE EFFECT OF NORMAL WATER & SEA WATER ENCORACHMENT IN RED SOIL ON CONCRETE

Locally available Red soil were used for the experimental analysis to study the effects of seawater impact in concrete structures with comparison of normal water in terms of its strength properties and changes on the behavior of Red soil. M-20 & M30 concrete cubes were casted with 0.45 water-cement ratio. Casted Concrete cubes are buried in red Soil near Costal zone to observe the Compressive strength and NDT during 28th day and 84th day with addition of fly ash class-C of two different proportions 20% & 30%. Totally 72 specimen were cast with normal water. The highest value of compressive strength obtained is 35.13N/Sq.mm during 84th day for Seawater curing in addition of fly ash class-C and lowest value is 15.57N/Sq.mm during 84th day for seawater curing without fly ash