INVESTIGATION OF THE IMPACT OF PALM BUNCH ASH ON THE  STABILIZATION OF POOR LATERITIC SOIL

AW Otunyo; CC Chukuigwe

doi:10.4314/njt.373.1758

INVESTIGATION OF THE IMPACT OF PALM BUNCH ASH ON THE STABILIZATION OF POOR LATERITIC SOIL

Authors

AW Otunyo DEPT. OF CIVIL ENGINEERING, RIVERS STATE UNIVERSITY, NKPOLU, PORT HARCOURT, RIVERS STATE NIGERIA.
CC Chukuigwe DEPT. OF CIVIL ENGINEERING, RIVERS STATE UNIVERSITY, NKPOLU, PORT HARCOURT, RIVERS STATE NIGERIA.

DOI:

https://doi.org/10.4314/njt.373.1758

Keywords:

palm bunch ash, lateritic soil, California Bearing Ratio, Optimum Moisture Content, Maximum Dry Density.

Abstract

This study investigated the impact of palm bunch ash (PBA) on the stabilization of poor lateritic soil. The palm bunch ash in percentages by weight (0%, 20%, 25% and 30%) was added to the lateritic soil. The 0% PBA acted as the control. The following parameters of the (lateritic soil+ palm bunch ash) were tested in the laboratory: Maximum Dry Density (MDD), Optimum Moisture Content (OMC), California Bearing Ratio (CBR) and unconfined compression strength (UCS). The values of the MDD, OMC, CBR and UCS increased as the PBA content in the lateritic soil was increased up to between 25% PBA, thereafter the values started to decrease. The UCS of the (lateritic soil + palm bunch ash) specimen cured for 14 days were also found to higher than that of 28 days curing period at 20% PBA content. The UCS values for 14 days became higher than that at 28 days at 25% PBA content. The PBA can be used as a lateritic soil stabilizer between (20-25%) PBA content.

http://dx.doi.org/10.4314/njt.v37i3.6

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Published

2018-07-01

Issue

Vol. 37 No. 3 (2018)

Section

Building, Civil & Geotechnical Engineering

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How to Cite

INVESTIGATION OF THE IMPACT OF PALM BUNCH ASH ON THE STABILIZATION OF POOR LATERITIC SOIL. (2018). Nigerian Journal of Technology, 37(3), 600-604. https://doi.org/10.4314/njt.373.1758