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Concrete mixtures for grain bins
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Posted 4/15/2019 13:40 (#7440894 - in reply to #7440771)
Subject: RE: Concrete mixtures for grain bins

564 pounds of cement would be a six bag mix, most of the admixtures would be measured in ounces per cubic yard and sold in larger volumes than you need. Unless you only need a couple of cubic feet, I do not see any economy it mixing small batches and hoping to have a quality result. The first batch will be nearly ready to stand on when your half way thru the mixing of the 4th or 5th mixer load. Did our ancestors do it? Sure they did. Did some of these concrete pours turn out okay and others where an expensive exercise in ruining quality components, we all know the answer to that question.

Transit mixed concrete comes with a batch ticket that shows the amounts of each component, amounts of requested admixture and can be verified by slump test, air entrainment tests or quick tests and as important to durability, the water to cement ratio. Concrete that runs like a bad case of diarrhea because it is too wet is a waste of resources.
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