Predictive models to determine the behavior of plastic and liquid limit of Lateratic soil for Raod construction at Egbema: Imo state of Nigeria

Abstract

Predictive values to determine the behaviour of plastic and liquid of lateritic soil for road design and construction has been developed, this two parameters has a relationship in term of soil classification through their laboratory results, both parameters sample were subjected to through laboratory analysis for several locations, the laboratory results of both parameters were plotted to determine there behavious and limits, the results generated equations at various locations, the equations were resolved and it generated theoretical values, the model values displayed there relationship on the classification of soil for road construction. The implementation of a laboratory testing proceedure is to classify subgrade material and assess sustain properties and moisture sensitivity (heavy, collapse, softening) that can influence long-term pavement performance. Testing implementation consists of classification testing, these are (i.e., gradation analysis, Atterberg Limits and sulfate tests). Generated predictive models producing theoretical values, are engineering properties of soil testing for various parameters (i.e., swell/consolidation, R-value, unconfined compressive strength, California Bearing Ratio, and Resilient Modulus Tests). This are also design parameters that should generate predictive models that can be applied as design parameter in the study area, the study is imperative because predictive models generated and validated has ascertain proof of the workability of the models as design parameter in design of flexible pavements in the study location.

Geotechnical Properties of Lateritic Soil Stabilized with Periwinkle Shells Powder

“…Table 1 shown the results of the preliminary test on the engineering properties of lateritic soil sample without any stabilization agent added, the soil has a plasticity index of 7.6 and is classified as an A-4-5 from the AASHTO table of classification as it falls within the silt clay soil classification in the Unified Classification system. However, the liquid limit and plasticity index fall within the results of [11][12][13][14]. to be above 90 % which was higher than the 70 % prescribed by [44].…”

“…Lateritic soil has less than 30% silt content, between 25-63 % liquid limit and 5-42 % plasticity index [11][12][13][14]. On this ground, it is understandable that the geotechnical properties of lateritic soil could be improved before there usage for engineering purposes.…”

Correlation between the California Bearing Ratio (CBR) and Unconfined Compressive Strength (UCS) of Stabilized Sand-Cement of the Niger Delta

“…However, geometric change requires wide road reserve due to flatter slope and stabilizing berms. It has been shown that geotechnical design can be innovative solutions for highway construction problems [12][13][14][15][16].…”

Effect of compactive effort on strength indices of laterite treated with calcium carbide waste

“…Soil modification as described by Sariossieri and Muhunthan, (2009) applies to a significant improvement of the soil workability and compaction characteristics and to a minor improvement of the soil mechanical strength using low contents of stabilizers. Modification according to (Eluozo and Nwaobakata, 2013) refers to soil improvement that occurs in the short term, during or shortly after mixing (within hours). It is aimed at reducing plasticity of the soil to the desired level, short term strength gain, (i.e.…”