Internal Friction Angle of Sands with High Fines Content

Project Details
STATE

LA

SOURCE

TRID

START DATE

08/01/20

END DATE

07/31/22

RESEARCHERS

Zhongjie Zhang, Murad Abu-Farsakh

SPONSORS

Federal Highway Administration

KEYWORDS

cohesion, cohesionless materials, Concrete, Fines (materials), Friction, Piles (Supports), sandy soils, steel

Project description

There are three main objectives of this study. The first is to evaluate the effect of fines content on the value of internal friction angle of sand soils mixed with fines typically encountered in Louisiana. The second objective is to evaluate the effect of fines content on the interface friction angle between sand soils mixed with fines and both concrete and steel surfaces. Lastly, the study will determine the threshold percent of fines content beyond which the sand soils mixed with fines will behave as cohesive soils, rather than cohesion less soils, and the effect on design of driven piles.
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