Evaluation of Rice Husk Ash Pozzolan on the Mechanical and Physical Properties of Cement Matrix Composites
Acodji V. Pamphile *
Department of Civil Engineering, Universitie of Abomey-Calavi, Benin.
Doko K. Valéry
Department of Civil Engineering, CAMES Universities, EPAC, Benin.
Olodo E. T. Emmanuel
Laboratory “LEMA”, Department of Civil Engineering, Doctoral School of Abomey Calavi, 01BP2009 Cotonou, Benin.
Datchossa Tiambo Abbas
Laboratory “LEMA”, Department of Civil Engineering, Doctoral School of Abomey Calavi, 01BP2009 Cotonou, Benin.
*Author to whom correspondence should be addressed.
Abstract
The present study aims to reduce the use of cement and encourage the utilization of plant biomass. The rice husk ash (loading: 2, 6, 10, 15, 25, 30, 35, 40, 45 and 50%) was used as a cement substitute. The effects of rice husk ash on the physical and mechanical properties of cement matrix composite was investigated. The results of this study show a drop in compressive strength of 19.75 to 5.10 between M0 and MR50 with a remarkable value of 17.02MPa at 10% (MR10). Likewise, we have a variation of the flexural strength from 2.96 to 0.47 between M0 and MR50 with a remarkable value of 1.87 at 10% (MR10). The material MR10 is light and can be used as a filling element.
Keywords: Rice husk, mechanical and physical properties, cement matrix composites, pozzolan.