Concrete Demolition and Rock Breaking has never been EASIER! 3 Easy Steps to use: Drill, Mix, Pour.Amazing 18,000 PSI expansive strength when mixed with water. Cracks according to drilling patterns.Dexpan breaks Reinforced Concrete & Rock WITHOUT Noise, Vibration! SILENT Controlled Demolition.Hundreds Job photos! Alternative to demolition jack hammer breaker, jackhammer, diamond saw bladeType#3 (Rock, Concrete Temperature 23F~50F). 11 Lb.