Effect of Batching Methods on the fresh and hardened properties of Concrete

Olusola, K. O and Babafemi, A. J and Umoh, A. A and Olawuyi, B. J (2012) Effect of Batching Methods on the fresh and hardened properties of Concrete. IJRRAS 13, 13.

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Abstract

This paper investigated the effect of batching by mass and volume on concrete’s compressive strength and workability. Influence of mix proportion at five levels and various water-cement ratios were also studied. All samples were cured by complete immersion in water and tested up to 28 days. The results indicated higher workabilities for concrete batched by mass than concrete batched by volume at all w/c ratios and mix proportions investigated. The workability increased with increase in w/c ratios in both methods. The compressive strength results showed that for rich structural mixes (1:1:2 and 1:1.5:3), concrete batched by mass had 20 % and 6 % strength increases respectively over the concrete batched by volume. Ordinary structural mix (1:2:4) had 14 % increase while non-structural mixes (1:3:6 and 1:4:8) had 8 % and 6 % increases respectively. In all cases, concrete batched by mass had better fresh and hardened properties of concrete.

Item Type:	Article
Subjects:	T Technology > TH Building construction
Divisions:	Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment
Depositing User:	Mrs Patricia Nwokealisi
Date Deposited:	14 Oct 2013 09:04
Last Modified:	14 Oct 2013 09:04
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/1619

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