Firstly, make a hole in the considered stone or concrete (Pay attention that in free standing rocks or concretes, the holes should be drilled vertically and in hidden rocks and concretes, the holes should be drilled with an angle of 30 degrees to the stone or concrete axis). You should make regular holes according to the instructions. For this purpose, the distance of first hole from free edge of stone or concrete should be maximum 15cm and the distance of holes in middle is 25cm. You may follow the below-mentioned table for determining the distance of holes in middle from each other. For complete destruction, it is better to make holes deep between 80-90 percent from height of stones or concrete. It is necessary to make clean inside the holes without any soil and moisture.
Then mix 5kg of destroying powder with one and one third liter of water in summer and 1.5 liter of water in winter for making a homogenous mixture without any air bubbles. Then, pour the composition inside the holes while they are filled completely with mortar. It is better to cover the holes with wooden wedge or plastic for prevention from sunlight and rain. Following table illustrates the diameter of holes and distance of holes from each other: