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I am working on providing material for crane counterweights. What is considered a normal weight loss (in pounds per cubic foot) for concrete from its plastic weight to a normal exposure weight after a month or two? My guess would be in the area of a pound or two per cubic foot.
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About 3 hours after our contractors poured a concrete patio, it began to rain and continued to rain for 2 hours. How will that compromise the integrity of the concrete with respect to strength, durability, and so on over the long term?
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Seven days after our contractor poured a concrete driveway, the concerned homeowner called us, instead of the contractor, when he started noticing small pop marks throughout the concrete. After speaking with the concrete finisher and after considering all of the possibilities, we concluded it was...