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Research Paper | Civil Engineering | Nigeria | Volume 3 Issue 6, June 2014

Model to Predict the Elastic Modulus of An A-5 Soil- Lime Mixture for Road Pavement Design in Rivers State Using one Indirect Tensile Testing Technique (Point Load)

D. B. Eme | J. C. Agunwamba

Abstract: In Mechanistic design; the elastic properties of the constituent material is very fundamental for a save and durable pavement; in this study one of the constituent materials of road pavement (laterite) used as a subbase material was modified using lime.0 %; 2 %; 4 %; 6 % and 8 % lime were mixed with the laterite and compacted at energy level of standard proctor of 100mm diameter by 80mm long split cylindrical mould; a total of 60 specimens were prepared in all and an average of 3 specimen was used for the test. The compacted specimens were moist cured and tested after 7; 14; 21; and 28 days. The CBR machine was used with an adaptation constructed by the researcher to load the specimen to failure through static load application; the point load indirect testing technique was used to obtain syresses and strains for the lime lateritic soil mixture; the spss programme was used to predict the Elastic Modulus from compressive Modulus; the result show that the predicted values were close to the measured values with an average R2 value of 90 % and that the Elastic and Compressive modulus increases with an increase in lime content up to 8 % lime content

Keywords: Prediction, ElasticModulus, CompressiveModulus, LateriticSoil, MechanisticDesign Point Load

Edition: Volume 3 Issue 6, June 2014,

Pages: 1557 - 1567