• Shubham Gopal Chopkar

Concrete is one of the most important materials that is being used next to water on the earth for the purpose of construction. It has innumerable uses in our day to day life. Generally for every material deterioration is the quiet happening phenomenon, in the same way the concrete also deteriorates in three main forms like physical, chemical and corrosion. The carbonation is widely recognized as a notable cause of corrosion of reinforcement present in concrete. This paper mainly investigates the carbonation effect on the concrete properties such as compressive strength, porosity and durability. The incorporation of Fly Ash (FA) is better known to improve the durability of reinforced concrete which are supplementary cementitious materials. In this study concrete cubes are prepared with and without the partial replacement of cement by Fly Ash and are placed in an accelerated carbonation chamber to study carbonation of concrete. Basically the concrete cubes are prepared for M30 grade with different percentages of FA like 0%, 5%, 10%, 15%, 20%, 25% and 30%. This paper also presents the experimental results of the work carried out on carbonated and non-carbonated concrete with CO2 concentration and exposure period like compressive strength, porosity, depth of carbonation and coefficient of carbonation.

Concrete, Reinforcement corrosion, Critical carbonation content, Durability, Modeling, carbonation attack, Fly Ash, Durability, Reinforced Concrete.

"Experimental investigation of carbonation in reinforced concrete structure due to corrosive environment", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 2, page no.d544-d547, February-2022, Available :http://www.jetir.org/papers/JETIR2202371.pdf

"Experimental investigation of carbonation in reinforced concrete structure due to corrosive environment", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 2, page no. ppd544-d547, February-2022, Available at : http://www.jetir.org/papers/JETIR2202371.pdf