Recent content by fritz4545

The Zip with insulation is expensive, we are using it on a project in Austin and the Zip with 1 1/2" insulation is 66 dollars a sheet. This was bulk price, about 3400 sheets. The joint tape is also costly, about 50 cents a foot.

Each bag of quikrete (80 pound) contains about 12 pounds of cement, the balance is sand and gravel. The admixture dose rate on the spec sheet is for 100 pounds of cement, your way over dosed. Use 1/2 to one oz. per bag and it should work. I would not use the block that you have casted...