Please use this identifier to cite or link to this item: http://ir.futminna.edu.ng:8080/jspui/handle/123456789/7409
Title: Suitability of Nigerian Standard Specifications for Evaluation of Composite Lateritic Gravel-Fine Soils for Road Base
Authors: Musa, Alhassan
Alhaji, Mustapha Mohammed
Mohammed, Abdullahi
John, Abraham
Keywords: California Bearing ratio
Lateritic fine
Lateritic gravel
Maximum dry density
Issue Date: 2020
Publisher: Journal of Research Information in Civil Engineering, University of Ilorin, Nigeria
Citation: M. Alhassan, M. M. Alhaji, M. Abdullahi and J. Abraham (2020), Suitability of Nigerian Standard Specifications for Evaluation of Composite Lateritic Gravel-Fine Soils for Road Base, Journal of Research Information in Civil Engineering, Vol. 17, No. 1, Pp 2989-3002
Series/Report no.: Vol. 17;No. 1
Abstract: Five fine lateritic soils collected from five different areas within the suburb of Minna, Niger State, Nigeria were sieved through BS sieve 0.425mm each. Fractions the fine soils passing through the sieve were mixed with lateritic gravel, at 0, 10, 20, 30, 40 and 50 % by mass of the gravel. Index properties, compaction characteristics and California Bearing Ratio of all the mixtures were evaluated. The results showed that the fine soils used, classified under A-2-6 to A-7-6 according to AASHTO soil classification system. The mixtures that gave the minimum 80 % CBR required by Nigeria General Specification for Roads and Bridge Works, for soil to be used for road base were isolated, and their index properties reevaluated. From the five fine soils studied, it was observed that 36 % maximum percentage passing BS sieve 0.075mm, 39 % maximum liquid limit and 14 % maximum plasticity index were adequate to give the 80 % minimum CBR, and can therefore be recommended for materials to be used for road base course as against the 35 % maximum percentage passing sieve 0.075mm, 35 % liquid limit and 12 % plasticity index, specified by the Nigerian General Specification for Roads and Bridge Works.
URI: http://repository.futminna.edu.ng:8080/jspui/handle/123456789/7409
ISSN: 0189-8787
Appears in Collections:Civil Engineering

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