The standard deviation in cubeStrength results of self-compactingConcrete of m40 grade using quarry Dust as fine aggregate and fly ashPowder as filler

Rao, Balakrishna K and Ibrahim, Shaikh Mohammed (2017) The standard deviation in cubeStrength results of self-compactingConcrete of m40 grade using quarry Dust as fine aggregate and fly ashPowder as filler. International Journal of Civil Engineering and Technology (IJCIET), 8 (10). pp. 1695-1703. ISSN 0976-6308 and ISSN Online: 0976-6316

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Abstract

The reduction in the sources of natural sand and the requirement for reduction in costof construction has led to an urgent need to identify a substitute for river sand. Quarrydust, which is a by product from the granite crushing processes in quarrying activity, isavailable abundantly and economically. This paper presents the study on the effect of replacing sand by quarry dust by 100% on the strength properties of self compactingconcrete for M40 grade and also to find standard deviation in cube strength results. About35 % of quarry dust powder having size between 600 micron to 300 micron. The resultsindicated that the standard deviation and coefficient of variation of cube test results forMix 1, 2, 3 and 4 showed a variation between 3 MPa and 7.5 MPa and between 5% and13% respectively. Lower cement content showed less standard deviation in compressivestrength as compared to higher cement content. An average strength of 55.4 MPa of 31 cubes of Mix 2 has shown a standard deviation of 7.41 MPa and coefficient of variation of13.4%.

Item Type: Article
Uncontrolled Keywords: Fly Ash, Cube Strength
Subjects: Engineering > MIT Manipal > Civil Engineering
Depositing User: MIT Library
Date Deposited: 25 Nov 2017 09:28
Last Modified: 25 Nov 2017 09:28
URI: http://eprints.manipal.edu/id/eprint/150075

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