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SIIA Público
SISTEMA INTEGRAL DE INFORMACIÓN ACADÉMICA - PÚBLICO
Título del libro: Geotechnical Engineering In The Xxi Century: Lessons Learned And Future Challenges Título del capítulo: Chemical Stabilization of Soils of the Former Lake Texcoco and its Use as Landfill
Soil Improvement; Chemical Stabilization; Calcium Oxide; Clays
Resumen:
Improving soil strength by physical and chemical methods is a common
practice in geotechnical engineering. This study investigates the
chemical stabilization of soil with calcium oxide, CaO, to modify
physical and chemical properties of clay materials for its use as a
backfill. The analyzed materials correspond to a mixture of volcanic
foam with cohesive soils of lacustrine origin with low resistance and
high compressibility, coming from the Ex Lake of Texcoco in the Valley
of Mexico basin and which require to be treated prior to its use as
excavation filling material. To evaluate the feasibility of the
treatment, the authors performed physical and chemical tests such as
limits of Atterberg, particle-size analysis, compaction, resistance
(UCS), expansion and Eades & Grim. The resulting design percentage is
8% CaO, the resistance values measured for different curing periods are
greater than 350 kPa and expansions lower than 0.6%.
