RICE-HUSK ASH-CARBIDE-WASTE STABILIZATION OF RECLAIMED ASPHALT PAVEMENT

JE Edeh; I Samson; A Terhemba

doi:10.4314/njt.353.1121

RICE-HUSK ASH-CARBIDE-WASTE STABILIZATION OF RECLAIMED ASPHALT PAVEMENT

Authors

JE Edeh DEPT. OF CIVIL ENGINEERING., UNIVERSITY OF AGRICULTURE, MAKURDI, BENUE STATE. NIGERIA.
I Samson DEPT. OF CIVIL ENGINEERING, BENUE STATE MINISTRY OF WORKS AND TRANSPORT, MAKURDI, BENUE STATE. NIGERIA.
A Terhemba DEPT. OF CIVIL ENGINEERING., UNIVERSITY OF AGRICULTURE, MAKURDI, BENUE STATE. NIGERIA.

DOI:

https://doi.org/10.4314/njt.353.1121

Keywords:

Carbide waste, Flexible pavement material, Reclaimed asphalt pavement, Rice husk ash and Stabilization

Abstract

This paper present results of the laboratory evaluation of the characteristics of carbide waste and rice husk ash stabilized reclaimed asphalt pavement waste with a view to determine its suitability for use as flexible pavement material. The mixtures were subjected to British Standard heavy compactive effort to determine the compaction characteristics, California bearing ratio, durability and water absorption. Test results showed that the maximum dry density increased while optimum moisture content decreased with carbide waste content and lower rice husk ash contents at any fixed reclaimed asphalt pavement content in the mixes. Optimum California bearing ratio values of 62.0 % (unsoaked) and 66.0 % (soaked for 24 hours) were recorded for 75% RAP + 25% CW mix, with minimum water absorption of 5.7 % and resistance to loss in strength of 84.1 %, hence the recommendation of the mixture for use as sub-base material in flexible pavement construction.

http://dx.doi.org/10.4314/njt.v35i3.1

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Issue

Vol. 35 No. 3 (2016)

Section

Building, Civil & Geotechnical Engineering

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How to Cite

RICE-HUSK ASH-CARBIDE-WASTE STABILIZATION OF RECLAIMED ASPHALT PAVEMENT. (2016). Nigerian Journal of Technology, 35(3), 465-472. https://doi.org/10.4314/njt.353.1121