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/
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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
- Features: Figures; Photos; References; Tables;
- Pagination: p. 3-30
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Serial:
- Publication of: Ministry of Public Works, Spain
- Issue Number: 108
- Publisher: Ministry of Public Works, Spain
Subject/Index Terms
- TRT Terms: Building; Clay; Cohesive soils; Expanded clay; Expansive clays; Foundations; Hydraulic structures; Roads; Seepage; Soil suction; Soil water; Swelling; Swelling soils; Time; Tunnels; Water table
- Geographic Terms: Spain
- Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways; Hydraulics and Hydrology;
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