Over my young career (3 years) I've always tested mortar following C109, which included placing mortar cubes in a water bath.
Recently, we had some low breaks on a project. The mortar supplier said that C109 was the wrong procedure and that C780 should be followed instead, with the most...
Hey all, new to the forums.
I've got a job that we are testing some 7000 psi concrete for. I've had a few pours where the concrete cylinder breaks came back lower than the concrete core breaks. On the range of 1000-2500 psi, give or take.
I'm trying to figure out why. I would think I could...