Bio-Enzymatic Stabilization of a Soil Having Poor Engineering Properties
| dc.creator | Ganapathy, G. P., Gobinath, R, Akinwumi, I. I., Kovendiran, S. | |
| dc.date | 2016-07 | |
| dc.date.accessioned | 2025-03-28T18:45:34Z | |
| dc.description | Soils with poor engineering properties have been a concern to construction engineers because of the need to strike a balance between safety and economy during earthworks construction. This research work investigates the effects of treating a soil having poor geotechnical properties with a bio-enzyme to determine its suitability for use as road pavement layer material. The elemental composition and microstructure of the soil was determined using energy dispersive X-ray spectroscopy and scanning electron microscopy, respectively. The specific gravity, Atterberg limits, compaction, strength and permeability characteristics of the soil was determined for various dosages of the bio-enzyme. The mountain soil is classified as clayey sand and A-2–4, according to unified soil classification and AASHTO classification systems, respectively. With increasing dosage of the bio-enzyme, the plasticity index, maximum dry unit weight and permeability of the soil decreased, while its 28-day California bearing ratio value, unconfined compressive strength and shear strength increased. Consequently, the application of bio-enzyme to the soil improved its plasticity and strength, and reduced its permeability. It, therefore, became more workable and its subgrade quality was improved for use as a road pavement layer material. The stabilized soil can be suitably used for constructing pavement layers of light-trafficked rural (earth) roads, pedestrian walkways and bicycle tracks. | |
| dc.identifier | http://eprints.covenantuniversity.edu.ng/7003/ | |
| dc.identifier.uri | https://repository.covenantuniversity.edu.ng/handle/123456789/36268 | |
| dc.publisher | Springer | |
| dc.subject | T Technology (General), TA Engineering (General). Civil engineering (General) | |
| dc.title | Bio-Enzymatic Stabilization of a Soil Having Poor Engineering Properties | |
| dc.type | Article |