The effect of normal stress on the shear strength ofthe interface
سال انتشار: 1401
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 121
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شناسه ملی سند علمی:
SETBCONF02_140
تاریخ نمایه سازی: 21 شهریور 1401
چکیده مقاله:
Asphaltic concrete has been used as waterproofing core in embankment dams, since ۱۹۴۸. In this application, granular materials are used around the asphaltic concrete as filter, which makes a complicated behavior in the interface and needs to be researched by experiments and modeling. This paper describes experimental work and the results of investigating the mechanical behavior of the interface between aggregates and asphaltic concrete. Small scale shear strength test has been used in this study, in which the shear surface is considered as the interface. The effect of bitumen penetration grade, moisture, density and angularity of aggregates on the shear strength parameters at different levels of normal stresses and a constant shear rate have been studied. The results show that the shear strength parameters increase with increasing the density and normal stress level. It is also shown that the shear parameters decrease with increasing moisture content in the interface. Increasing in normal stress improve the parameters of interface.
کلیدواژه ها:
نویسندگان
Milad Tajdini
Ph.D. Geotechnical Engineering,
Seyed Mahdi Mostafavi,
Bs.C. Civil Engineering IAU Saveh
Seyed Ahmad Mirsaneyi
Bs.C. Architect Engineering Kosar University