Construction of a New Hollow Cylinder Apparatus to Study the Tensile Behavior of Clay with Different Plasticity Indices

Soil tensile strength is important in different geotechnical structures such as earth dams, roads, airports, landfills, and retaining walls. There are several experiments to study the tensile behavior of soils with different advantages and disadvantages. One of the methods used to investigate soil t...

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Main Authors: Abbas Ghalandarzadeh, Mahmood Reza Abdi, Leila Shafiei Chafi
Format: Article
Language:fas
Published: University of Qom 2021-08-01
Series:پژوهش‌های زیرساخت‌های عمرانی
Subjects:
Online Access:https://cer.qom.ac.ir/article_1972_c757858aef02f2f9bd9052d97a9c2d53.pdf
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author Abbas Ghalandarzadeh
Mahmood Reza Abdi
Leila Shafiei Chafi
author_facet Abbas Ghalandarzadeh
Mahmood Reza Abdi
Leila Shafiei Chafi
author_sort Abbas Ghalandarzadeh
collection DOAJ
description Soil tensile strength is important in different geotechnical structures such as earth dams, roads, airports, landfills, and retaining walls. There are several experiments to study the tensile behavior of soils with different advantages and disadvantages. One of the methods used to investigate soil tensile behavior is tensile hollow cylinder apparatus, which has seldom been used. In this research, a hollow cylindrical device to measure the tensile properties of soil was built and operated. This device can apply tensile stress evenly to the entire soil sample so that stress concentration does not occur at any point in the sample.  After designing, manufacturing, and assembling the apparatus, validation tests were performed to ensure the device was operating well. The results of the repeatability tests show the accurate performance of the device. Also, in this study, the effect of plasticity index (PI) on the tensile behavior of kaolinite clay was investigated. Clayey soils with plasticity indices of 10 and 24% were selected. The results show that for clays with a similar mineral, the tensile strength increases and the tensile failure strain decreases with increasing the plasticity index.
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spelling doaj.art-06272e42db0b4f92a4cf181aeb9c44bb2024-03-31T19:58:29ZfasUniversity of Qomپژوهش‌های زیرساخت‌های عمرانی2783-140X2021-08-017115317110.22091/cer.2021.7389.13031972Construction of a New Hollow Cylinder Apparatus to Study the Tensile Behavior of Clay with Different Plasticity IndicesAbbas Ghalandarzadeh0Mahmood Reza Abdi1Leila Shafiei Chafi2Associate Professor, School of Engineering, Tehran UniversityAssociate Professor, Faculty of Civil Engineering, K.N. Toosi University of TechnologyFaculty of Civil Engineering, K.N. Toosi University of Technology, Tehran, IranSoil tensile strength is important in different geotechnical structures such as earth dams, roads, airports, landfills, and retaining walls. There are several experiments to study the tensile behavior of soils with different advantages and disadvantages. One of the methods used to investigate soil tensile behavior is tensile hollow cylinder apparatus, which has seldom been used. In this research, a hollow cylindrical device to measure the tensile properties of soil was built and operated. This device can apply tensile stress evenly to the entire soil sample so that stress concentration does not occur at any point in the sample.  After designing, manufacturing, and assembling the apparatus, validation tests were performed to ensure the device was operating well. The results of the repeatability tests show the accurate performance of the device. Also, in this study, the effect of plasticity index (PI) on the tensile behavior of kaolinite clay was investigated. Clayey soils with plasticity indices of 10 and 24% were selected. The results show that for clays with a similar mineral, the tensile strength increases and the tensile failure strain decreases with increasing the plasticity index.https://cer.qom.ac.ir/article_1972_c757858aef02f2f9bd9052d97a9c2d53.pdftensile hollow cylinder testtensile strengthclayplasticity index
spellingShingle Abbas Ghalandarzadeh
Mahmood Reza Abdi
Leila Shafiei Chafi
Construction of a New Hollow Cylinder Apparatus to Study the Tensile Behavior of Clay with Different Plasticity Indices
پژوهش‌های زیرساخت‌های عمرانی
tensile hollow cylinder test
tensile strength
clay
plasticity index
title Construction of a New Hollow Cylinder Apparatus to Study the Tensile Behavior of Clay with Different Plasticity Indices
title_full Construction of a New Hollow Cylinder Apparatus to Study the Tensile Behavior of Clay with Different Plasticity Indices
title_fullStr Construction of a New Hollow Cylinder Apparatus to Study the Tensile Behavior of Clay with Different Plasticity Indices
title_full_unstemmed Construction of a New Hollow Cylinder Apparatus to Study the Tensile Behavior of Clay with Different Plasticity Indices
title_short Construction of a New Hollow Cylinder Apparatus to Study the Tensile Behavior of Clay with Different Plasticity Indices
title_sort construction of a new hollow cylinder apparatus to study the tensile behavior of clay with different plasticity indices
topic tensile hollow cylinder test
tensile strength
clay
plasticity index
url https://cer.qom.ac.ir/article_1972_c757858aef02f2f9bd9052d97a9c2d53.pdf
work_keys_str_mv AT abbasghalandarzadeh constructionofanewhollowcylinderapparatustostudythetensilebehaviorofclaywithdifferentplasticityindices
AT mahmoodrezaabdi constructionofanewhollowcylinderapparatustostudythetensilebehaviorofclaywithdifferentplasticityindices
AT leilashafieichafi constructionofanewhollowcylinderapparatustostudythetensilebehaviorofclaywithdifferentplasticityindices