Characterizing the Engineering Properties of Residual Soils of Migmatite and Charnoakite Precursor for Infrastructural Development

The study is an investigation into the engineering properties of Migmatite and Charnockite precursor soils with a view to determining their suitability for sustainable infrastructural development. Six disturbed soil samples were sampled and used for the study. The results of the investigations showed that the soils from both locations have the same degree of laterization and they are fairly graded being rich in fines. Cassagrande chart classifies soils from both locations as inorganic intermediate plastic soils (CI). The results obtained further revealed that all the soil samples exhibit good compaction parameters, high water retention capacities and poor drainage characteristics. The California bearing ratios (CBR) of all the soil samples are generally suitable in comparison with the recommended standard values. It is concluded from the integrated results that though both derived soil samples from the study areas are safe and fairly competent for any engineering work, the Migmatite residual soil samples possess better engineering properties and is thereby recommended as more suitable material for all civil engineering construction projects.