Shear Strength Behavior of Crude Oil Contaminated Sand-Concrete Interface

  • سال انتشار: 1395
  • محل انتشار: ژورنال مهندسی عمران، دوره: 2، شماره: 8
  • کد COI اختصاصی: JR_CEJ-2-8_001
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 791
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نویسندگان

Amir Hossein Mohammadi

PhD student, Department of Civil & Environmental Engineering, Amirkabir University of Technology, Tehran, Iran

Taghi Ebadi

Assistant Professor, Department of Civil & Environmental Engineering, Amirkabir University of Technology, Tehran, Iran

Mehrdad Ahmadi

M.Sc student, Department of Civil & Environmental Engineering, Amirkabir University of Technology, Tehran, Iran

Arash Aliasghar

M.Sc student, Department of Civil & Environmental Engineering, Amirkabir University of Technology, Tehran, Iran

چکیده

A laboratory investigation into crude oil contaminated sand-concrete interface behavior is performed. The interface tests were carried out through a direct shear apparatus. Pure sand and sand-bentonite mixture with different crude oil contents and three concrete surfaces of different textures (smooth, semi-rough, and rough) were examined. The experimental results showed that the concrete surface texture is an effective factor in soil-concrete interface shear strength. The interface shear strength of the rough concrete surface was found higher than smooth and semi-rough concrete surfaces. In addition to the texture, the normal stress and the crude oil content also play important roles in interface shear strength. Moreover, the friction angle decreases with increasing crude oil content due to increase of oil concentration in soil and it increases with increasing interface roughness.

کلیدواژه ها

Sand-Concrete Interface; Pollution; Shear Strength; Bentonite

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