TITLE:
The Consequence of Particle Crushing in Engineering Properties of Granular Materials
AUTHORS:
Omar H. Al Hattamleh, Hussien H. Al-Deeky, Mohammad N. Akhtar
KEYWORDS:
Sand; Dilatancy; Frictional Materials; Crushing; Particle Breakage; Permeability
JOURNAL NAME:
International Journal of Geosciences,
Vol.4 No.7,
September
16,
2013
ABSTRACT: This paper presents experimental investigation for
particles breakage for natural sand. The particle breakage was induced by
subjecting the sample to one dimensional compression. Grain size analyses were
performed before and after induced breakage. Thereafter, the sand shear
strength parameters were assessed using direct shear box tests and the coefficient
of permeability was assessed using constant head permeameter. Examining the obtained
results revealed that the amount of breakage due to one dimensional compression was of order higher than the amount occurring during direct shear test.
Peak shear strength parameters decreased with the particles
breakage increasing. Moreover, dilation angle of shear strength pronouncedly
decreases with the amount of particles breakage increasing. Crushing has
obvious effect on the evaluated coefficient of permeability.