• M SRIRAMAN
• Vinodhini Ellappan
• Arthika B

In India, most of the construction activities are made with concrete. Concrete is being used for all major constructions, like dams, towers, water tanks, houses, roadways, and railway sleepers etc. Concrete has been the major instrument for providing stable and reliable infrastructure and thus long-term performance of structures has become vital to the economies of all nations. Deterioration, long term poor performance, and inadequate resistance to hostile environment, coupled with greater demands for more sophisticated architectural form, led to the accelerated research into the microstructure of cements and concretes and more elaborate codes and standards. As a result, new materials and composites have been developed and improved. The major remarkable quality in making High Performance concrete is elimination of voids and reduced w/c ratio. To attain this quality pulverized fly ash is replaced with concrete as 30%, 40% and 50% and the compression strength obtained are compared with conventional concrete result. To reduce water cement ratio chemical admixture is added and the comparison is done with conventional strength result. The strength results on M20, M30 and M40 grade says that the replacement of fly ash satisfies the codal provision, reduces 30% of total cost of work and increases durability as years goes on.

Durability, flyash, Chemical Admixture, M20, M30, M40

"EXPERIMENTAL STUDY ON DURABILITY OF CONCRETE UNDER DIFFERENT ENVIRONMENTAL EXPOSURE CONDITIONS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 12, page no.30-38, December-2018, Available :http://www.jetir.org/papers/JETIR1812907.pdf

"EXPERIMENTAL STUDY ON DURABILITY OF CONCRETE UNDER DIFFERENT ENVIRONMENTAL EXPOSURE CONDITIONS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp30-38, December-2018, Available at : http://www.jetir.org/papers/JETIR1812907.pdf