Effects of miscellaneous plasticity on behavior of lime-treated kaolinites

ABSTRACT

Lime is commonly used for treatment of clays. Factors influencing the stabilization process include clay mineral and content, type of lime, etc. Current paper presents results of examining the effects of miscellaneous plasticity on the behavior of lime stabilized kaolinites. Kaolinites with plasticity indices of 10, 19 and 26% were treated with 1, 3 and 5% lime and cured for 1, 7 and 28 days. Effects of lime on compaction, compressive and shear strength parameters of mixtures were examined. Lime addition had the least influence on compaction characteristics of the kaolinite with plasticity index of 10% as compared with those having plasticity indices of 19 and 26%. Greatest and lowest improvements in compressive strengths, moduli of elasticity and shear strengths were respectively achieved by kaolinite with plasticity indices of 10 and 26%. Curing period showed a very influential factor on lime stabilization process and the changes observed.

KEYWORDS:

• Lime
• kaolinites
• stabilization, curing
• plasticity index
• elastic modulus

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Notes on contributors

Mahmood Reza Abdi

M.R. Abdi, BSc in civil engineering, South West University, England, 1985. MSc in structural engineering, Bradford University, England, 1987.  PhD in Geotechnical engineering, South Glamorgan University, Wales, UK, 1991. Lecturer at the K.N.T. University of Technology since 1992, Lectured various subjects at  undergraduate, postgraduate and PhD levels. Supervised more than 60 MSc dissertations and three PhD thesis.

Amir Chehregosha

A. Chehreghosha, BSc graduate of Urumia University, Iran, 2013 and Postgraduate of  geotechnical engineering, K.N.T. University of Technology, 2016. Professional Civil Engineer at present.

Roohollah Farzalizadeh

R. Farazalizadeh, BSc amd MSC graduate of Urmia University, Iran. Professional structural engineer at present