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Utilization of steel slag for stabilization of a lateritic soil

Akinwumi, I. I. (2013) Utilization of steel slag for stabilization of a lateritic soil. LAP Lambert Academic Publishing, Saarbrücken. ISBN 978-3-659-45654-1

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Abstract

A lateritic soil classified as sandy clay or (CL) and A-7-6 (5) according to Unified Soil Classification System (USCS) and AASHTO classification system respectively, was treated with up to 10% pulverized steel slag (an industrial waste product) by dry weight of soil. Elemental and chemical analysis of the steel slag was determined using x-ray fluorescence spectroscopy. Tests were carried out to determine the index properties, compaction characteristics (maximum dry density, MDD and optimum moisture content, OMC), strength characteristics (California bearing ratio, CBR and unconfined compressive strength, UCS) and permeability of the natural and treated soil. Test results show that Atterberg limits (liquid limit, plastic limit and plasticity index) generally decreased, while specific gravity of soil – steel slag mixtures increased with higher steel slag content; MDD and OMC increased and decreased, respectively, with higher steel slag content. Generally, CBR and UCS increased up to 8% steel slag treatment of the soil. Permeability of soil – steel slag mixtures increased with higher steel slag content. Based on laboratory test results, an 8 % optimal stabilization of the A-7-6 soil with steel slag satisfactorily meets the Federal Republic of Nigerian General Specifications (Roads and Bridges) requirement for subgrade materials.

Item Type: Book
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TD Environmental technology. Sanitary engineering
Divisions: Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment
Depositing User: Engr. Isaac Ibukun Akinwumi
Date Deposited: 15 Mar 2015 09:09
Last Modified: 15 Mar 2015 09:09
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/3923

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