Sustainable development of roadways in Africa
DOI:
https://doi.org/10.3989/mc.2012.01711Keywords:
DRP, stabilisation, construction, soil, roadsAbstract
Dallas Roadway Products (DRP) soil stabilization technology can effectively improve road foundation construction and with it the strength of roadway sub-grades and sub-bases. Soil samples were collected from roads in Nigeria’s six geo-political regions. DRP LS-40 (lignate sulfonate) and DRP SA-44 (sulfuric acid) were added to the soil materials. The mixture precipitated a non-reversible chemical reaction that involved a permanent change in the soil structure. The chemicals reacted with the clay content, increasing the soil material plasticity. In non-plastic soils, clay materials were added to the soil, which was then pulverised. The study showed that DRP soil stabilisation chemicals can render poor, unsuitable or marginally deficient soils apt for use as a sub-base or base in roadway construction.
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(1) CBN: ‘‘Highway maintenance in Nigeria: Lessons from other countries’’. Central Bank of Nigeria Research Department Occasional Paper Series No 27, (2003), 65p.
(2) Joel, M.: ‘‘Response of Igumale Shale to chemical Stabilization for Road Work’’. A Ph.D Thesis, Civil Eng Dept., UNN, Enugu State, (2006).
(3) Omotosho, O.: ‘‘Effect of stabilization on the performance of Deltaic lateritic soils as a road pavement material’’. A Ph.D Thesis, Civil Eng Dept., UNN, Enugu State, (2006).
(4) Bell, F.G.: ‘‘Lime stabilization of clay minerals and soils’’. Engineer Geology, vol. 42 (1996), pp. 223-237. PII S0013-7952(96)00028-2.
(5) The Nigeria General specification for Roads and Bridgeworks: Federal Ministry of works and Housing Lagos, (1997).
(6) Ademoroti, C.M.O.: Standard methods for water and effluents analysis. Foludex Press Ltd., Ibadan (1996), pp.32-118.
(7) BS 1377: Methods of test Soils for Civil Engineering Purposes. Classification Tests. British Standards Institute, London, BS 1377-2 (1990), 68p.
(8) BS 1377: Methods of test Soils for Civil Engineering Purposes. Shear Strength Tests. British Standards Institute, London, BS1377-8 (1990), 36p.
(9) BS 1377: Methods of test Soils for Civil Engineering Purposes. Chemical Test. British Standards Institute, London, BS1377-3 (1990), 48p.
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