Investigation on Mechanical and Durability Properties of Fly Ash and Slag based Concrete

International Journal of Civil Engineering

© 2017 by SSRG - IJCE Journal

Volume 4 Issue 5

Year of Publication : 2017

Authors : Dr. B. Vidivelli, S. Sri Durga Meru

10.14445/23488352/IJCE-V4I5P102

How to Cite?

Dr. B. Vidivelli, S. Sri Durga Meru, "Investigation on Mechanical and Durability Properties of Fly Ash and Slag based Concrete," SSRG International Journal of Civil Engineering, vol. 4,  no. 5, pp. 5-10, 2017. Crossref, https://doi.org/10.14445/23488352/IJCE-V4I5P102

Abstract:

There has been a tremendous increase in the use of mineral admixture by industries during the late 20th century and the rate is expected to increase. Concrete is an artificial material, which is made up of cement, fine aggregate, coarse aggregates and water. The increasing demand for cement and concrete is met by the partial cement replacement by addition of supplementary cementing materials which leads to several improvements in the concrete composites and to the overall economy. Mineral admixtures are used in concrete because they improve the properties of concrete. The lower cement content leads to a reduction for CO2 generated by the production of Portland cement. In this study an attempt is made to replace cement with fly ash 20% as constant and GGBS with 10%, 20%, 30%, 40%, 50% for M30 grade concrete and the properties of fresh and hardened concrete are to be tested at 7 and 28 days to identify the optimum percentage of GGBS in concrete. Replacement of cement by fly ash and GGBS in M30grade concrete to study compressive strength (28, 56, 90 and 180 days), flexural strength and modulus of elasticity for concrete. Also determine the durability properties such as rapid chloride penetration test, salt resistance and sulphate resistance properties. The multi linear regression equations are to be derived by using the origin pro analysis for the properties of concrete.

Keywords:

Fly ash, GGBS, Compressive strength, Flexural strength, E for concrete, Rapid Chloride Penetration test, Salt resistance and Sulphate resistance.

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