QUIKRETE® Fast-Setting Concrete Mix (No. 1004)is a special blend of fast-setting cements, sand and gravel designed to set hard in approx. 20 to 40 minutes. Sets posts without mixing. Pour dry mix into hole and soak with water. ...
No, it's not a grunge band-it's a powdery binding agent that mixes with gravel, sand, and water to form the hardened slab we call concrete. It's made by heating limestone, iron, alumina, and silica to 2,700° F, which changes the ingredients into calcium silicates, alumi-nate, and...