DBPapers
DOI: 10.5593/SGEM2014/B12/S2.098

REMARKS ON MAIN METHODS OF EXPANSIVE SOILS IMPROVEMENT

T. Ivasuc, E. Olinic, I. Siminea
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-08-7 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 2, 769-774 pp

ABSTRACT
Construction of embankments composed of clayey soils can generally cause unfavorable effects (differential settlement and ground heaving) due to their vulnerability to ground movements sourced from swelling and shrinking of the expansive clay soils. To prevent or reduce the effect of swelling or shrinking of these soils some measures must be taken by stabilizing expansive soils and to produce and improve to the construction material. This paper reviews principal methods to improve clayey soils as follows: soil stabilization by physical, chemical, mechanical and thermal treatments, preventing access of water to the soil and removal of expansive soil and replacement with a non-expansive material. The use of industrial wastes such as waste construction materials, slag from industries and mineral mining waste has a positive impact on the environment.

Keywords: expansive soils, stabilization, soil mixtures, industrial waste