Experimental study on durability properties of M30 grade of super concrete

civil engineering

Concrete occupied an important place in construction industry in the past few decades. Cement is major constituent material of the concrete which produce by natural raw material like lime, and silica. This situation leads to think to do research work on cement replacing material and use of it. Industrial waste GGBS, fly ash, silica fume etc. so chemical properties similar to cement. These material when combine with calcium hydroxide exhibits cementitious properties. This experiment deals with the experimental investigation on concrete specimens. In this experimental study an attempt has been made to reduce the consumption of cement with concrete mix grade M30 by studying the mechanical behaviour of these concrete mixes by replacing with advanced mineral admixture GGBS in concrete mixes as partial replacement of cement. GGBS is a waste industrial by-product from the blast furnaces used to make iron. Use of GGBS helps to reduce the impact on environment by consuming the material generally considered as waste product. In this project, properties of concrete have been assessed by partially replacing cement with GGBS. The cement has been replaced by GGBS accordingly in the range of 10%, 20%, 30% and 40% by weight of cement for M30 mix. Experimental results are reported including compressive strength of concrete specimens at 14 days and 28 days and also to analyse the durability characteristics of concrete to check the durability of concrete acid attack is conducted by use of HCL for conventional concrete and GGBS concrete. Concrete mixtures were produced, tested and compared in terms of compressive strength with the conventional concrete.

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