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EXPANSIVE SOIL STABILIZATION - GENERAL CONSIDERATIONS

Larisa Ladislau

First published: 2017-06-20https://doi.org/10.5593/sgem2017/32/s13.033View metrics

Abstract

It is a well-known fact that a construction is as strong as its foundations are. Nowadays the constructions sites with good soils for foundations are fewer and fewer. One of the most encountered issue on sites, especially in road construction is the presence of highly cohesive soils, soils that are easily affected by the change of the water content. Active clay soils present a problematic challenge for civil and geotechnical engineers all over the world. Key aspects that need identification when dealing with expansive soils include: soil properties, suction/water conditions, water content variations temporal and spatial, (generated by trees and the seasonal change), and the geometry/stiffness of foundations and associated structures built on active shrink/swell soils. Stabilization procedures are available in order to reduce or completely eliminate the swelling potential of expansive clays. The problematic soil is removed and replaced by a good quality material or treated using mechanical and/or chemical stabilization. Different procedures can be used to improve the geotechnical characteristics of problematic soils by treating in situ. One of the preferred solutions for soil stabilization is treatment with mineral binders. The solution has been proven to be effective of various types of cohesive soils.

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Publication details

Title
EXPANSIVE SOIL STABILIZATION - GENERAL CONSIDERATIONS
Authors
Larisa Ladislau
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Water Resources. Forest, Marine and Ocean Ecosystems
Publisher
STEF92 Technology
Year
2017
Pages
247-256
SWS Citekey
Chindris201713247256
ISSN
1314-2704
ISBN
978-619-7408-05-8
Language
en
Publication type
Conference Paper
Keywords
Soil stabilizationclay soilsexpansive soilslimehydraulic bindersbearing capacityimprovementand treatment
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