Experimental study of impact of cement treatment on the shear behavior of loess and clay

This study aims to evaluate the effects of cement on the mechanical behavior of loess and clayey soil, and various laboratory tests have been conducted to do so. Such laboratory tests as standard proctor compaction, large-scale direct shear, and consolidated-drained triaxial were performed. In curre...

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Bibliographic Details
Published inArabian journal of geosciences Vol. 13; no. 4
Main Authors Ghadakpour, Moein, Choobbasti, Asskar Janalizadeh, Kutanaei, Saman Soleimani
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2020
Springer Nature B.V
Subjects
Cement
Clay
Clay soils
Concrete
Dry weight
Ductile-brittle transition
Earth and Environmental Science
Earth science
Earth Sciences
Failure modes
Laboratories
Laboratory tests
Loess
Mechanical properties
Original Paper
Shear
Soil
Soil compaction
Soil investigations
Soil mechanics
Soil testing
Soils
Tests
Loess
Direct shear test
Clay
Triaxial test
Cement
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Summary:This study aims to evaluate the effects of cement on the mechanical behavior of loess and clayey soil, and various laboratory tests have been conducted to do so. Such laboratory tests as standard proctor compaction, large-scale direct shear, and consolidated-drained triaxial were performed. In current research, the cement percentages were 0, 4, and 8%—by dry weight of soil. The samples were cured for 7 days. Results of the investigation showed that cement treatment improves mechanical behavior remarkably; however, it changes the samples behavior from ductile to brittle and alters the failure mode. Additionally, the enhancement depends to the soil type. With increasing percentage of cement, the stress-strain behavior of specimens tends towards the behavior expected of over-consolidated soils.
ISSN:1866-7511
1866-7538
DOI:10.1007/s12517-020-5181-7