Some engineering characteristics of a compacted lateritic residual soil |
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| Authors: | B Indraratna P Nutalaya |
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| Institution: | (1) Department of Civil & Mining Engineering, University of Wollongong, P.O. Box 1144, 2500 Wollongong, NSW, Australia;(2) Division of Geotechnical Engineering, Asian Institute of Technology, G.P.O. Box 2754, 10501 Bangkok, Thailand |
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| Abstract: | Summary In many parts of the world, particularly in humid tropical regions, residual soils are abundant. In this paper the suitability of a residual lateritic soil as a construction material is investigated, with respect to its strength and compaction characteristics. In comparison with other typical construction fills available in Southeast Asia, compacted lateritic soils produce excellent shear strengths and CBR values. However, the brittleness and tensile cracking of this compacted material become enhanced on the dry side of the optimum moisture content, or if excessive compaction is imparted. Nevertheless, at a moisture content of 2% wetter than the optimum, the tensile mode of failure is suppressed and the lateritic fills become ideally suited for the construction of high embankments and impervious dam cores. |
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| Keywords: | Lateritic soils embankment dam cores compaction moisture content |
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