so what's the verdict on mixing portland cement and no sand, just gravel from the road?
For what you're doing, that should be fine...you'll probably end up with voids in the mix, but as long as the pvc is secure in the concrete it should work.
"Forget pounds and ounces, I'm figuring displacement!"
If we accept that: MBG(+)FGSF(=)HBG(F1) And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1) Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT? PB answer: It depends.
