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Concrete wont harden
I had a left over half bag of ready-mix concrete. It's about 2 years
old. It was still powdery but had a few small chunks in it, which easily broke up with my fingers. I filled a 8" round hole in my sidewalk where there used to be a wooden post. The weather has been in the 80s and it should have dried quickly. I mixed it so it was like thick paste (the way it should be). 24 hours later it was all sand-like and was not hard. I wet it down. (I know it should be kept wet) and the whole surface washed off. Now it's all sand looking. Does old cement go bad? It seems this stuff has. JWR |
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