THE USE OF GUM ARABIC AS STABILIZING AGENT FOR SUB-BASE IN ROAD CONSTRUCTION
Yusuf S, Hamza A, and Abdullahi A.B
Department Of Civil Engineering, Kaduna Polytechnic, Kaduna
E-mail: ibnyusuf2005@yahoo.com
ABSTRACT: There is in need to upgrade the capability of soil, by stabilization instead of throwing it away. In order to find how a black clay soil can be improved, an investigation was carried out to see how an improved black clay soil can be used as sub-base material for road construction. The analysis conducted on the soil; stabilized with 15% Gum Arabic has produced the Liquid Limit of 25, Plastic Index of 8.77, M.D.D of 1.75, O.M.C of 15.92 and CBR of 30%. The results are in line with ASHTO recommendation for soil to be used as sub-base in road construction.
Keywords: Yamaltu Deba, Black clay soil, Gum Arabic, soil stabilization,
Received for Publication on 21 November 2014 and Accepted in Final Form 26 November 2014