American Journal of Civil Engineering and Architecture
ISSN (Print): 2328-398X ISSN (Online): 2328-3998 Website: http://www.sciepub.com/journal/ajcea Editor-in-chief: Dr. Mohammad Arif Kamal
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American Journal of Civil Engineering and Architecture. 2021, 9(1), 9-12
DOI: 10.12691/ajcea-9-1-2
Open AccessArticle

Physico-mechanical Characterization of Composite Bricks from Laterite, Typha and/or Rice Hull

Mathioro Fall1, , Astou Mbengue1, Ndèye Seune Gueye1 and Oustasse Abdoulaye Sall1

1Department of Civil Engineering, UFR SI, University of Thies, Thies, Senegal

Pub. Date: January 19, 2021

Cite this paper:
Mathioro Fall, Astou Mbengue, Ndèye Seune Gueye and Oustasse Abdoulaye Sall. Physico-mechanical Characterization of Composite Bricks from Laterite, Typha and/or Rice Hull. American Journal of Civil Engineering and Architecture. 2021; 9(1):9-12. doi: 10.12691/ajcea-9-1-2

Abstract

This study is part of the valuation of local materials in order to build economic, sustainable and resilient housing. The objective is to characterize composite bricks made from a mixture of laterite and straw (rice hull and typha) with proportions between 3 to 6%. These mixtures are stabilized with 1% cement and with proportions of 48.5 and 50% sand. The physical and mechanical characteristics were obtained from water immersion absorption and compression tests, respectively. The results show that the high immersion water absorption and porosity of these composite bricks is due to the low density of typha and rice hull and therefore the durability of these bricks is low. To overcome this problem, the use of plaster is recommended. On the other hand, the compressive strength of all the bricks varies between 2.09 to 3.64 MPa. This resistance falls within the range of admissible values for earthen bricks. These resistances are sufficient to build a two-story house [3,8,10].

Keywords:
composite brick laterite rice hull typha compressive strength porosity

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