Investigation Into Some of The Engineering Properties of Red Clay Soils In Bahir Dar.
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Date
2003-11
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Addis Ababa University
Abstract
Despite Geotechnical research has not been done in Bahir Dar, from reconnaissance, the majority
of the town is covered by red soils comparing to the black soils. The red clay soils are dominantly
found in the eastern and western parts of the town. An investigation has been made on the
properties of red soils obtained, from locally called 'Abay mado' (Kebele 11), in the eastern part
of the town where the expansion is very high for development. Hence the present research is
intended to investigate some of the engineering properties of red clay soils in Bahir. After visiting
the proposed site, six test pit points were selected. The numbers of test pits were limited because
of the constraint in budget and time. Representative disturbed and undisturbed soil samples were
collected from open pits by direct excavation manually. The laboratory tests that were carried
out includes mineralogical analysis, index properties, consolidation, and shear strength tests and
with the aid of these results an analysis is made to determine some characteristics of red clay
soils.
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The laboratory result shows the red clay soils in Bahir Dar contain the clay mineral kaolinite
predominantly. The data resulted from the test is inadequate to provide correlation that relate
index properties with shear strength parameters and compressibility characteristics.
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Bahir Dar