10% entrapped air? Structural concern?
10% entrapped air? Structural concern?
(OP)
I have a very unprofessionally placed retaining wall containing horizontal cold joints and excessive honeycomb. Too many issues for one thread. I'm looking at density here. We took cores and got some decent compressive strength results, but the density is ~135 pcf. The density appears to be he result of entrapped air. Is there an ACI minimum density for normal weight concrete? And is there any guidance for reducing the compressive strength based on a low density concrete?





RE: 10% entrapped air? Structural concern?
RE: 10% entrapped air? Structural concern?
RE: 10% entrapped air? Structural concern?
RE: 10% entrapped air? Structural concern?
RE: 10% entrapped air? Structural concern?
RE: 10% entrapped air? Structural concern?
Was this a plant batched mix design?
At 135 it also sounds like a mix of lightweight and normal weight aggregate.
Mike McCann, PE, SE (WA)