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Jun 20, 2018
Swelling–Shrinkage Properties of Expansive Moreland Clay
Authors: Md Adnan Khan, Ph.D. [email protected], Jay X. Wang, Ph.D. [email protected], and William B. Patterson, Ph.D. [email protected]Author Affiliations
Publication: PanAm Unsaturated Soils 2017
Abstract
One of the biggest challenges for researchers and engineers is to properly understand unsaturated expansive soil. Moreland clay which is composed mostly of Montmorillonite minerals causes the major structural damages in Northern Louisiana. The objective of this paper is to expand further knowledge and understanding of the soil volume change behavior of Moreland clay. According to the USCS soil classification, Moreland clay is a highly expansive fat clay (CH) with a significant moisture content absorption capacity (LL = 79 and IP = 51). An in-depth soil testing is done to characterize Moreland clay including the identification of its swell-shrink properties, soil index property measurement, and soil heave predictions using five different methods. The average swelling percent (SP) is calculated as 7.2%. It indicates that Moreland clay has one of the highest SP values once compared with other expansive soil around the world.
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© 2018 American Society of Civil Engineers.
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Published online: Jun 20, 2018
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Geotechnical Staff, Shannon & Wilson, Inc., Seattle, WA 98103. E-mail: [email protected]
P.E.
Professor, Program of Civil Engineering, Louisiana Tech Univ., Ruston, LA 71272. E-mail: [email protected]
Assistant Professor, School of Agricultural Sciences and Forestry, Louisiana Tech Univ., Ruston, LA 71272. E-mail: [email protected]
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