Improving the Bearing Capacity of Laterite by Adding Sand

 

Madjadoumbaye, Jérémie

Department of Civil Engineering, University of Yaounde I
e-mail: djerem2002@yahoo.fr

and

Ngapgue, F.

Department of Civil Engineering, University of Dschang I
e-mail: fgapgue2005@yahoo.fr

Nouanga, P.

Department of Civil Engineering, University of Yaounde I
e-mail: nouanga@yahoo.fr

Abdou, M. C.

Department of Civil Engineering, University of Yaounde I
e-mail: abdoucherif85@yahoo.fr

Tamo, T. T.

Department of Civil Engineering, University of Yaounde I
e-mail: thomas_tatietse@hotmail.com

ABSTRACT

Road projects are very expensive because they require a lot of earthworks. At times, the soil in place has an insufficient bearing capacity, hence the need to look for good soil whose characteristics are defined in the specifications. When such material is not near the construction site, its transportation makes the project more expensive and the completion period very long. This work consisted of testing an approach that could improve the bearing capacity of a laterite found on a site by adding sand to it. Results reveal that regardless of the amount of compaction applied to the samples under study, the addition of 30% to 35% of sand to a sample of laterite significantly improves its bearing capacity, which reduces works costs and execution time.

Keywords: Laterite, sand, improvement, bearing capacity

Get the entire paper (pdf)     Go back to the TOC