Experimental study of grain shape and size influence on rate of particle breakage
Publish place: 10th International Congress on Civil Engineering
Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICCE10_0196
تاریخ نمایه سازی: 19 تیر 1394
Abstract:
Particle breakage and crushing of granular materials influence the parameters such as permeability, shear strength, grading curve and porosity. As particle breakage continues, stability of structures such as rockfill dams, earth dams, also railway path and road embankments are decreased. Shape, size and property of grains, stress path and amount of stress, water content and initial porosity are factors that affect the particle breakage. In this research, shape effect and grain size influence on amount of breakage has been studied and different breakage factors have been compared with concentration on grading curve before and after compressive loading in confinement condition. Results show that in general, angular and large-size materials compared to rounded and small-size materials, have high amount of breakages and using Liu breakage factor leads to higher values of breakage than Marshal's and Hardin's.
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Authors
v Gorbanpoor
Ph.D. Student, Department of Civil Eng., Sahand University of Technology, Tabriz.
v Mohamadnezhad
M.Sc. Student, Department of Civil Eng., Sahand University of Technology, Tabriz.
m Emami Tabrizi
Ph.D. Civil Eng., Department of Civil Eng., Sahand University of Technology, Tabriz.
n Choupani
Ph.D. Civil Eng., Department of Civil Eng., Sahand University of Technology, Tabriz.
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