Effects of Glass Fines on the Geotechnical Properties of Cement Stabilized Lateritic Soil

Abstract

Effect of glass fines and cement as a composite mixture on the geotechnical properties of a poor lateritic soil obtained from a borrow pit at Aroje, Ogbomoso, Nigeria was investigated as a reuse method of managing wasted glass. Glass fines up to 12% at intervals of 4% by mass of the soil sample were added to the lateritic soil stabilized with cement of 0, 2, 4, and 6% by mass of the soil sample. Sieve analysis, Atterberg limit, British Standard (BS) Compaction, California Bearing Ratio (CBR) and Unconfined Compressive Strength (UCS) tests were conducted on the stabilized soil specimens. Results showed that Liquid Limit (LL), Plastic Limit (PL) and Plasticity Index (PI) decreased while compaction and UCS of the lateritic soil increased from 0 to 8% addition of glass fines. The CBR of the soil increased continuously from 0 to 12% glass contents. However, addition of cement increased the LL and PI while it decreased the PL between 0 and 4% but increased beyond this range. The compaction, UCS and CBR of the stabilized soil increased significantly with increasing cement content. Hence, the soil can be stabilized with the addition of 8% glass fines and 6% cement content to be used as improved subgrade material for construction of light trafficked pavement.

Geochemical Analysis of Ilaro-Papalanto Highway Subgrade

“…The ratios are less than 1.33 for laterites, between 1.33 and 2.0 for lateritic soils and greater than 2.0 for non-lateritic soils (Townsend, 1970;Bell, 1993;Adedokun and Oluremi, 2019;Adedokun et al 2019b). The SSR of Ilaro soil is 1.39% while that of Papalanto is 1.12%.…”

Use of Sawdust Fibers For Soil Reinforcement: A Review

“…There have been several types of research that have been carried out on the stabilization of expansive soils with the use of these binding materials [9,20,[33][34][35][36] however, this type of treatment sometimes makes soils fragile, which is unfavorable in some dynamic load conditions, including traffic loads on pavement systems. Additionally, its production and use involve large amounts of energy and carbon dioxide emissions into the atmosphere [37].…”

“…A high problem that is currently observed is that the disposal of the sawdust produced is often carried out by its discharge in the open air, and in many cases with open burning or its final disposal in landfills [26,36,37,68,92,93]. The sawdust arranged in the different landfills increases their load, and their burning contributes to greenhouse gas emissions into the atmosphere increasing the environmental impact produced [94].…”

Evaluation of the Statistical Significance of Compactive Efforts, Slag and Cement on the Geotechnical Features of Laterite Soil

“…Manasseh [27] and Vijayakumar et al [28] noted that carbon dioxide, which is a major greenhouse gas, contributes approximately 65% of global warming. This therefore leads to the search for alternative local materials as partial or total substitution for cement [29][30], and the search has resulted into the discovery of steel slag, an industrial waste, as a potential cementitious material [5,15,25,31].…”