Research Article
Nov 1972
Lateritic Gravel Evaluation for Road Construction
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VIEW THE REPLYAuthors: J. W. S. de Graft-Johnson, M.ASCE, Harbhajan Bhatia, M.ASCE, and A. A. HammondAuthor Affiliations
Publication: Journal of the Soil Mechanics and Foundations Division
Volume 98, Issue 11
Abstract
The influence of geology, topography and climatic conditions on the mode of formation of typical lateritic soil profiles have been investigated, with emphasis on conditions in Ghana, West Africa. The physical chemical mechanical and weathering characteristics of such gravels have been studied. Significant statistical correlations are developed between various physical properties and mechanical strength. In addition, very significant correlation exists between the ratio of oxides of silica to iron and the mechanical strength. No such correlation seem to exist between the ratios of silica to alumina or silica sesquioxide, indicating that iron oxide plays a dominant role in the development of mechanical strength in laterites. On the basis of field studies and laboratory data, lateritic gravels have been divided into four groups, each group having a range of physical, chemical and mechanical properties which corresponds with the performance of the gravels in the field.
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Published In
Journal of the Soil Mechanics and Foundations Division
Volume 98 • Issue 11 • November 1972
Pages: 1245 - 1265
Copyright
© 1972 American Society of Civil Engineers.
History
Published in print: Nov 1972
Published online: Feb 12, 2021
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Affiliations
J. W. S. de Graft-Johnson, M.ASCE
Dir., Building and Road Research Inst., Kumasi, Ghana
Harbhajan Bhatia, M.ASCE
Principal Research Engr., Building and Road Research Inst., Kumasi, Ghana
A. A. Hammond
Chf. Tech. Officer, Building and Road Research Inst., Kumasi, Ghana
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