Filling horizontal holes with a pump

First Operation
Drilling and cleaning the hole.

Second Operation
Mass and charging of holes by means of pneumatically operated pump, using green, universal CRAS.

Third Operation
The tube must fit the 32 mm diameter hole so that none of the material can escape. As filling is done from the bottom onwards, it must have the depth of the hole, which in this case is 10 m.

Fourth Operation
The end of the filling operation must be synchronised with the sealing or plugging of the hole. The paper plug is inserted by hand until pressure is felt between the paper and the mass, ensuring that the hole is perfectly full.