EXPANSIVE CLAYS: THEIR STUDY AND TREATMENT

LAS ARCILLAS EXPANSIVAS: SU ESTUDIO Y TRATAMIENTO

This article presents criteria for identifying expansive clay soils both from the mineralogical point of view and on the basis of index values, for determining sensitivity to expansion. Various formulae and correlations between the typical index properties and the parameters characterising expansivity are also given. The most dangerous geographical areas in Spain are mentioned together with the influence of the weather on the processes of swelling. Basic equations, which describe the percolation of water through the soil, are presented. Laboratory and field methods for the measurement of suction forces are outlined together with their applications. In conclusion, the effects of expansive clay on buildings, roadworks, hydraulic works and tunnels, are examined as are possible corrective measures which can be taken before and after construction and affect the soil structure and type of foundation; recommendations are made in each case, and an extensive specialized bibliography on the subject is included. /TRRL/

  • Corporate Authors:

    Ministry of Public Works, Spain

    Calle Alfonso XII 3
    Madrid 7,   Spain 
  • Authors:
    • Rodriguez, J M
  • Publication Date: 1975-3-4

Language

  • Spanish

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00131788
  • Record Type: Publication
  • Source Agency: Transportation & Soil Mechanics Laboratory, Spain
  • Files: ITRD, TRIS
  • Created Date: Jun 5 1976 12:00AM