Various laboratory tests were carried out on sampled expansive soil by adding 10, 15, and 20% of marble and 0.25, 0.5, and 0.75% of 5 × 8 mm² plastic strips. In this study, the effects of utilizing plastic waste and marble waste dust on the engineering properties of expansive soils were examined. From an environmental conservation and economical point of view, the usage of agricultural and industrial wastes is the best option. Flooding and high swelling potential of the soils are the main geological hazards that require due consideration in the study area.Įxpansive soil needs to undergo treatment to be used as safe foundation soil for roads and buildings. Basalt, ignimbrite and tuff are the lithological rock units identified in the study area, which are classified into three major engineering geological subunits: very high Strength, high strength, and very low strength (soft) rock units. The area is dominantly covered by high plastic silt and clay soil type. DISTURBED UNDISTURBED SOIL SAMPLES FREELaboratory results revealed that the natural moisture content, liquid limit, plastic limit, plasticity index, specific gravity, and free swell of the soils range from 41.97-62.45%, 66-101%, 31-62%, 19-59%, 2.36-2.75, and 33-130% respectively. Geological and engineering geological maps were prepared at a scale of 1:25,000. A total of 12 disturbed soil samples were collected from 12 test pits, which were dug manually up to 3 m depth. Detailed field survey, in-situ strength test, sampling, geological mapping, and laboratory testing of samples were conducted. Therefore, the present research work aimed to evaluate the geological and engineering geological condition of the town. As in many towns of Ethiopia, very little is known about the soil and rock engineering properties and subsurface conditions of the town. It is located 348.5 km southwest of Addis Ababa. Jimma is one of the major and densely populated towns in Ethiopia.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |