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Experimental Study on Compressive Strength of Concrete Using Pumice with 40% GGBS and Metakaolin Comparing with Conventional Concrete

Manoj Sasikumar and Lakshmi Thangasamy

Abstract

Aim: The objective is to compare conventional concrete by using M30 grade concrete mix, a novel pumice aggregate used to partially replace coarse aggregate to produce lightweight concrete.
Methodology: In our concrete, 10% metakaolin is kept constant while 50% cement and 40% ground granulated blast-furnace slag (GGBS) are replaced. This composition was used for all groups. Novel pumice stone has replaced coarse aggregate, while M-sand has replaced fine aggregate. The 18 cubes were arranged in a group based on the 28-day cure dates. In addition to novel pumice aggregate, metakaolin and GGBS are purchased from Scientific Company.
Results: The 18 cubes were arranged in a group according to the 28-day curing period. A total of 36 cubes were built in two groups in order to calculate the compressive strength. For typical concrete of grade M30 at 28 days, the average compressive strength test result is 30.28 N/mm2. The result of the compressive strength test of concrete with novel pumice aggregate stone and partial replacement of GGBS and metakaolin by the weight of cement for group 1 and for 18 cubes for the M30 grade of concrete @ 28 days is 35.50 N/mm2. According to an independent t-test analysis, p = 0.000, or less than p = 0.05 (p < 0.05), was found. As a result, the two groups show a considerable statistical difference. Conclusion: The compressive strength of concrete of M30 grade at 28 days of compressive strength test results of concrete with novel pumice aggregate stone and partial replacement of GGBS and metakaolin by the weight of cement is increased.

Published on: October 26, 2023
doi: 10.17756/nwj.2023-s3-107
Citation: Sasikumar M, Thangasamy L. 2023. Experimental Study on Compressive Strength of Concrete Using Pumice with 40% GGBS and Metakaolin Comparing with Conventional Concrete. NanoWorld J 9(S3): S590-S594.

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