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Osunade J. A Lasisi F. (1997) Effect of Sizes and Types of Coarse Aggregates on the Tensile Strength of Laterized Concrete. Proceedings of the Structural Engineering Analysis and Modeling conference (SEAM 4) Kumas Ghana.

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Article

Strength of Laterite Rock Concrete

1Department of Civil Engineering, Rivers State University of Science and Technology, Port-Harcourt, Nigeria

2Department of Civil Engineering, Auchi Polythechnic, Auchi, Edo State, Nigeria

3Department of Civil Engineering, University of Port Harcourt, Port Harcourt, Nigeria


American Journal of Civil Engineering and Architecture. 2016, Vol. 4 No. 2, 54-61
DOI: 10.12691/ajcea-4-2-3
Copyright © 2016 Science and Education Publishing

Cite this paper:
Ephraim M. E., Adoga E.A., Rowland-Lato E. O.. Strength of Laterite Rock Concrete. American Journal of Civil Engineering and Architecture. 2016; 4(2):54-61. doi: 10.12691/ajcea-4-2-3.

Correspondence to: Rowland-Lato  E. O., Department of Civil Engineering, University of Port Harcourt, Port Harcourt, Nigeria. Email: rowlandlato@yahoo.com

Abstract

This paper presents the results of laboratory tests conducted to investigate a concrete made with laterite rock coarse aggregates. The structural properties considered were strength and elasticity. Laterite concrete mix proportions of 1:3:6, 1:2:4 1:1½:3 by weight of cement, river sand and laterite rock respectively at varying water/cement ratios of 0.55-0.90 were used. The results established an optimum water/cement ratio of 0.75, 0.60 and 0.55; with characteristic strengths of 12.00N/mm2,18.69N/mm2 and 22.88N/mm2 for mix 1:3:6, 1:2:4 1:1½:3 respectively. Flexural and splitting test results were about 6 - 21% of the compressive strength of the laterite rock concrete. The static modulus elasticity of laterite rock concrete is 22.72kN/mm².

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