Int. J. Pure Appl. Sci. Technol., 2(1) (2011), pp. 29-46 International Journal of Pure and Applied Sciences and Technology ISSN 2229 - 6107 Available online at www.ijopaasat.in Research Paper The Suitability and Lime Stabilization Requirement of Some Lateritic Soil Samples as Pavemen Olugbenga Oludolapo Amu 1,* , Oluwole Fakunle Bamisaye 2 and Iyiola Akanmu Komolafe 3 1,2,3 Department of Civil Engineering, Obafemi Awolowo University, Ile-Ife, Nigeria * Corresponding author, e-mail: olugbengaamu@yahoo.com (Received: 06-12-2010; Accepted: 18-01-2011 ) Abstract: This paper studied the suitability and lime stabilization requirement of some selected lateritic soil samples as pavement construction materials. Soil samples A, B, and C collected from a dam site and stabilized with 0, 2, 4, 6, 8, and 10% of lime were subjected to preliminary tests (natural moisture content, specific gravity, particle size analysis and Atterberg’s limits) and strength tests (compaction, California bearing ratio (CBR), unconfined compression and undrained triaxial). Results of the preliminary tests classified the samples as fair to poor pavement construction materials. The suitability of samples A, B and C was improved by optimum lime stabilization at 8, 6, and 6% respectively. The addition of lime to the samples caused a reduction in the plasticity indices of the samples. The CBR of A increased from 10.6% at 0% to 29.0% at 8% lime, while that of C improved from 2.5% to 8.6% at 6% lime. The compressive and shear strengths were also improved; the uncured compressive strength of B improved from 119.13 kN/m 2 at 0% to 462.81 kN/m 2 at 6% lime. With optimum stabilization, samples A and B will be suitable as base materials while sample C will perform well as sub-grade material in pavement construction. Keywords: lime stabilization, material upgrade, road construction 1. Introduction: Developments in the country have awakened the sense of economical resource management in the populace. People are being inspired to go back and take a closer look at the resources which they have earlier condemned, so as to find ways through which they could put such materials into use again. This is mainly because there is an increased competition for available materials as multiple uses of such resources are being discovered, and the cost of acquiring these suitable materials increases alongside. Major steps have thus