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Internal Friction Angle for Concrete Rubble
2

Internal Friction Angle for Concrete Rubble

Internal Friction Angle for Concrete Rubble

(OP)
Does anyone have a reasonable phe angle to use for broken concrete rubble?  The rubble measures about 6"-7" think and is broken into pieces about 1-2 foot square.  The material is being used as a fill material between two parallel bulkheads to form an offshore breakwater.  The complete structure is 8-feet in height above the mud line and 15-feet in width.  The two parallel wall will be tied together to contain the concrete rubble and form an offshore breakwater.

RE: Internal Friction Angle for Concrete Rubble

I use 40 to 45 degrees for broken stone and I would consider this similar.

RE: Internal Friction Angle for Concrete Rubble

I would agree with DRC1 in a situation like yours.

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