Potential and Durability Characteristics of Blended Cement Concrete

Construction industry depends heavily on conventional materials such as cement, granite and sand for the production of concrete. Cement is the most economical constituents used in the production of concrete and also poses the problem of acute shortage in many areas, which poses serious problems on its availability, cost and environmental impact. For preventing environment and to produce a low cost concrete an attempt is being made in this project that the cement is partially replaced by locally available material such as egg shell powder. The concrete design mix considered is M40 of ratio 1: 1.61: 2.87. The specimens were prepared by replacing cement by 5%, 10%, 15%, 20%. The mechanical properties of Egg shell powdered Concrete like compressive, split tensile and flexural strength were determined for 7, 28 and 56 days of curing period and results were compared with the conventional concrete.Therefore, fly ash is highly worthful to search for an alternate material which can replacement without compromising the quality of concrete.