QUIKRETE FAST-SETTING CONCRETE MIX 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 he... PD Justo - 《Wired》 被引量: 0发表: 2012年 Fast-Setting Concrete for Repairing Cement...