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Geotechnical and Geological Engineering

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01.02.2008 | Original Paper

On the Investigations of Resilient Modulus of Residual Tropical Gravel Lateritic Soils from Senegal (West Africa)

verfasst von: Meissa Fall, Auckpath Sawangsuriya, Craig H. Benson, Tuncer B. Edil, Peter J. Bosscher

Erschienen in: Geotechnical and Geological Engineering | Ausgabe 1/2008

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Abstract

Investigations on the mechanical behavior of compacted gravel lateritic soils have been the subject of several studies. Used as road materials, soils tests were mainly performed using standard tests. Static loads as unconfined compression test (UCT) remain the only engineering approach used. Alternative testing techniques can be chosen as supplementary tests for characterizing pavement materials. These researches were conducted so as to determine the response of these particular and problematic soils in its compacted form with road traffic loads. This paper presents the results of research conducted to investigate the effect of the soil compacity on the resilient modulus of lateritic soils. The influence of the percentage of cement added so as to stabilize each sample at the optimum modified proctor (OPM) State was also determined. Soil big specimens of around 180 mm diameter (with length to diameter aspect ratio of 2:1) were prepared according to the standard procedure described by AASHTO T 307 and then were subjected to repeated load triaxial tests. The models used, analyzed and developed in this paper are mainly the Andrei and the Uzan–Witczak universal model. Test results showed that the specimen compacity has no significant influence on the resilient modulus of the investigated gravel lateritic soils. Soil specimens with variation of the percentage of cement added exhibited the highest resilient modulus values while the specimens with variation of the compacity exhibited the lowest values. The resilient modulus variation seems to be independent of the level of stress.

Vorheriger Artikel Cost Optimization of Reinforced Earth Walls

Nächster Artikel The Effect of Spatial Correlation of Cone Tip Resistance on the Bearing Capacity of Shallow Foundations

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Titel: On the Investigations of Resilient Modulus of Residual Tropical Gravel Lateritic Soils from Senegal (West Africa)
verfasst von: Meissa Fall
Auckpath Sawangsuriya
Craig H. Benson
Tuncer B. Edil
Peter J. Bosscher
Publikationsdatum: 01.02.2008
Verlag: Springer Netherlands
Erschienen in: Geotechnical and Geological Engineering / Ausgabe 1/2008
Print ISSN: 0960-3182
Elektronische ISSN: 1573-1529
DOI: https://doi.org/10.1007/s10706-007-9144-5

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