We are offering hi tech expansive mortar. 'hi-tech' expansive mortar is a highly expansive powder for stone quarrying, mining-concrete cutting and demolition, etc. 'hi-tech' expansive mortar expands when mixed with common water and poured into pre-drilled holes on stone or concrete. It produces an extreme pressure of 40-100 mpa (4000-10000 t/m) on the hole-walls after a few hours reaction time in holes, while the tensile stress of stone and concrete is 3- 10 mpa (300-1000 t/m), thereby crack them easily. 'hi-tech' expansive mortar is environmental friendly and produces no noise, no vibration, no toxic gases, no flying debris or residue. It helps your work more efficient and cost effective.