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Experimental Study on High Performance Concrete with Partial Replacement of Cement by using Silica Fume, Fly Ash and GGBS

Author(s):

M. Revathi , THE KAVERY COLLEGE OF ENGINEERING; Mrs. R. Vanathi, THE KAVERY COLLEGE OF ENGINEERING; Mr. M. Saravana Kumar, Lord Jeganath College of Engineering and Technology; Mrs. J. Vidhya, THE KAVERY COLLEGE OF ENGINEERING

Keywords:

Durability, Fly Ash, High Performance Concrete, Silica Fume/Micro Silica, Density, Water Absorption

Abstract

The Now a days, we need to look at a way to reduce the cost of building materials, particularly cement is currently so high that only rich people and governments can afford meaningful construction. This study investigated the strength properties of Silica fume, fly ash, GGBS. This work primarily deals with the strength characteristics such as compressive, Split tensile and flexural strength. The High performance concrete M40 Mix design a set of 7 different concrete mixture were cast and tested with different cement replacement levels (0%, 2.5%, 5%, 7.5%, 10% 12.5% and15%) of Fly ash (FA) with silica fume (SF) as addition ( 0%,5%,10 % ,15%,25and 30%) by wt of Cement and/or each trial super plasticizer has been added at constant values to achieve a constant range of slump for desired work ability with a constant water-binder (w/b) ratio of 0.30.Specimens were produced and cured in a curing tank for 3, 7, 14 and 28 days. The cubes were subjected to compressive strength tests, split tensile test after density determination at 3,7,14 and 28 days respectively. The density of the concrete decreased with increased in percentage of micro silica and Fly ash replacement up to 15%. Increase in the level of micro silica fume and Fly ash replacement between 30% to 45% led to a reduction in the compressive strength of hardened concrete. This study has shown that between 15 to 22.5% replacement levels, concrete will develop strength sufficient for construction purposes.

Other Details

Paper ID: IJSRDV7I30749
Published in: Volume : 7, Issue : 3
Publication Date: 01/06/2019
Page(s): 1244-1252

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