Lime Treatment: New Perspectives for the use of Silty and Clayey Soils in Earthen Hydraulic Structures
Traitement à la chaux : nouvelles perspectives pour l'utilisation des sols silteux et argileux dans les ouvrages hydrauliques en terre
Résumé
This paper deals with the recent research results obtained through the SOTREDI project, “SOil TREatment for DIkes” undertaken by the Lhoist Group, a World leader in lime production, in collaboration with several research centers and universities. In a first part of the project, it was demonstrated that lime-treated soils could comply with several critical specifications for water retaining structures : low permeability level, mechanical stability, internal and external erosion, reduction of shrinkage risk and dispersive behavior of soils, etc.
Real-scale experimental dikes were built in September 2011, to verify the correspondence between lab results and the realscale realization.
In parallel, elements about durability of lime-treatment will be reported by examples of more than 30 years old structures around the world.
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