ANTI CORROSIVE ACTIVITY OF FLY ASH BLENDED CEMENT CONCRETES

Concrete occupies a unique position among modern construction materials. It is the only material manufactured at construction sites. It gives considerable freedom to the architect to mould the structural element to any shape or form a freedom that is not possible with other materials. Of course, concrete has limitations it cannot on its own flow past obstructions into nooks and crannies. Though compaction, often using vibration, is essential for achieving strength and durability of concrete. As concrete is produced and placed at construction sites, under conditions far from ideal, we do often end up with pleasant results rock pockets, sand streaks and a host of workmanship related problems. Fly ash blended concrete has evolved as an innovative technology, capable of achieving the status of being an outstanding advancement in the sphere of concrete technology. As so many construction companies are using the fly ash in their projects, this boomed in every mind to what extent the fly ash can be used and so research is going on this. The utilization of fly ash will reduce the dumping of fly ash as well as decrease the construction cost also. In reality many of the concrete structures exposed to sever environmental condition exposed to sea water in case of marine structures and sever aggressive conditions in case of fertilizer industry where the durability of concrete structure is important. In this aspect our project is aimed to test the fly ash blended concrete in corrosion and the same concrete cubes were tested for compressive strengths cured in different chemicals and this is compared with normal curing