Durability and Fire Resistance of Laterite Rock Concrete

Ephraim M. E.¹, Adoga E.A.² and Rowland-Lato E. O.^3,

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

Cite this paper:
Ephraim M. E., Adoga E.A. and Rowland-Lato E. O.. Durability and Fire Resistance of Laterite Rock Concrete. American Journal of Civil Engineering and Architecture. 2016; 4(4):117-124. doi: 10.12691/ajcea-4-4-2

Abstract

The ability of a structure to retain its structural integrity in adverse conditions of weather and fire out break depends on its durability and fire resistance. This research work investigated these indispensable properties in Laterite Rock Concrete to assess its usability structural concrete. Durability was investigated in terms of water absorption, density, shrinkage and fire resistance. Fire resistance test was carried out using direct fire test. Two mix proportions: 1:2:4 and 1:1½:3 were tested at optimum water/cement ratio of 0.6 and 0.55 for 1:2:4 and 1:1½:3 mixes respectively. From the results, it is concluded that the concrete is durable, environmentally compatible and possesses high fire resistance properties, having satisfied the relevant codes requirements. The 1:2:4 and 1:1½:3 conform to the specifications for grades 15 and 20 correspondingly. Recommendations include specifications for designing structural elements using the Laterite Rock Concrete.

Keywords:
durability fire resistance strength concrete laterite rock

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