What Hole Diameter Is Required for HSCA Rock Splitting?

The hole diameter required for HSCA (soundless cracking agent) depends on the rock type and the drilling equipment used.

For most quarrying and demolition projects, the recommended hole diameter is typically 32mm to 45mm. These holes are usually drilled using pneumatic rock drills such as YT28 air-leg rock drills or hand-held rock drills.

Drilling tools such as tapered drill rods and button drill bits are commonly used to achieve the correct hole diameter and depth before filling the expansive mortar.

Proper hole spacing and diameter are important to ensure maximum expansion pressure and efficient rock cracking when using HSCA.