Comportamiento y propiedades geotécnicas de suelos residuales y arcillas alófanas
DOI:
https://doi.org/10.21703/0718-2813.2009.6.3687Keywords:
residual - soils, volcanic, allophane - clays, consolidation, shear strength, compactionAbstract
An overview of the properties of residual soils is given in the first part of the paper. The different processes by which residual and sedimentary soils are formed are described, and the need to be aware that procedures applicable to sedimentary soils do not necessarily apply to residual soils is emphasised. In particular, it is shown that the log scale normally used for presenting oedometer test results is not appropriate or relevant to residual soils. The second part of the paper gives an account of the special properties of allophane clays. Their abnormally high water content and Atterberg limits are described, and it is shown that despite this, their geotechnical properties are remarkably good. Methods for control of compaction of residual soils and allophane clays are also described.
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