Rock breaking without noise and vibration. Rock excavation of the hardest rock in the world without excavator with Dynacem non-explosive demolition agent. Breaking and removal of the hardest rocks on the planet - Stockholmgranit, to make room for house building in Nacka, Stockholm, Sweden, October - November, 2018. After drilling and filling the holes with Dynacem non-explosive demolition agent, wide cracks are created and the granite is so crumbled that neither excavators nor demolition hammers are needed. The rock can be removed by hand. Swelling agent Dynacem blasts rocks within 24 hours at temperatures between minus 10 and plus 50 ° C.