Influence Of Roadcem Content on Mechanical Properties of Lateritic Soil for Pavement Applications
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Date
2025
Journal Title
Journal ISSN
Volume Title
Publisher
Proceedings of the Third International Civil Engineering Conference (ICEC, 2024)
Abstract
Studies on lateritic soil had been carried by numerous researchers across the globe with a view of improving it for
the purposes of road pavement and other civil engineering constructions. The main aim of this paper is to examine
the impact of varying Roadcem (RC) content on the mechanical properties of lateritic soil for pavement
applications which was found to be an A-7-5 soil according to AASHTO. The soil sample was treated with RC at
0, 1,2,3,4, and 5%. Laboratory test such as particles size distribution, unconfined compressive strength (UCS) test
for the treated and untreated samples was carried out. Three samples on each dosage were compacted and molded
in cylindrical molds and cured two of each sample for 7 days, one each for 28 days. X-ray Diffraction Analysis
(XRD), was also carried out on the two samples to reveals their crystalline phases and shows high intensity of
CaO and Quartz on the two samples respectively. The UCS results shows insignificant variations in the dosage of
RC even at 28 days. The study concluded that A-7-5 soils does not respond to treatment with RC beyond 1% due
to its high plasticity and poorly graded and therefore recommend the use of the RC as an additive, at lesser
percentage, or on cohesionless soils like sand for road pavement applications.
Description
Keywords
lateritic soil, Roadcem, stabilization, Unconfined Compressive Strength