1. Variables Controlling Stiffness and Strength of Lime-Stabilized Soils.
- Author
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Consoli, Nilo Cesar, Lopes, Luizmar da Silva, Prietto, Pedro Domingos Marques, Festugato, Lucas, and Cruz, Rodrigo Caberlon
- Subjects
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LIMING of soils , *STIFFNESS (Mechanics) , *SLOPE stability , *ENVIRONMENTAL soil science , *EARTH dams , *SOIL-cement construction - Abstract
Lime treatment is an attractive technique for soil improvement in the construction of rail tracks and pavement layers, in slope protection of earth dams, and as a support layer for shallow foundations. However, there are no dosage methodologies based on rational criteria as in the case of soil-cement technology, where the voids/cement ratio is shown to be a key parameter for the estimation of both strength and stiffness. The present study, therefore, was aimed at quantifying the influence of the amount of lime, porosity, and voids/lime ratio on the initial shear modulus (G0) and unconfined compressive strength (qu) of a lime-treated clayey sandy soil. From the results of unconfined compression tests and bender elements measurements, it was shown, for the soil-lime mixtures investigated, that the voids/lime ratio is an appropriate parameter to assess both initial stiffness and unconfined compressive strength. Also, a unique G0/qu versus voids/lime ratio relationship was established linking the soil-lime mixture initial stiffness and compressive strength. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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