Parking Bumpers
Parking Bumpers
(OP)
We have run into parking bumpers installed in northern climates that are disintegrating. We are told they used air entrained concrete. The concrete just flakes off at the touch. In some cases 1/3 to 1/2 are gone. Has anyone else experienced this and know what might be causing it?





RE: Parking Bumpers
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RE: Parking Bumpers
RE: Parking Bumpers
It sounds like the concrete is delaminating due to freeze-thaw. In addition to salt messing with the passivity, it also alows for the surface to go through more freeze thaw cycles.