Bursting & Splitting

Hydraulic bursting and splitting breaks concrete by applying lateral forces against the concrete. Rather than shattering the concrete into bits as impact tools would, the lateral forces build up to crack the concrete into smaller sections.

Hydraulic Bursting
A hydraulic burster consists of a hydraulic powered motor and a burster head / ram, which is made of pistons. Prior to bursting, a series of holes needs to be core drilled into the area needing to be removed. Hole sizes usually range from 115mm or 200mm in diameter. The burster head is then placed into the holes one after the other, placed under pressure forcing the burster head pistons to expand within the hole, which in turn causes the concrete to break into manageable pieces. This is repeated until all the area targeted for removal has been separated.

Hydraulic splitting
Used in conjunction with drilling, powerful hydraulic wedges are inserted into pre-drilled holes and mechanically expanded until the material is forced apart. Once the integrity has been broken down, the concrete can be removed using your preferred method. Darda Splitting sequence: a hole of a precise diameter and depth is drilled into the material. The wedge set (one wedge and two counter wedges) is inserted into the hole drilled; the wedge is driven forward under hydraulic pressure, forcing the counter wedges apart. The material splits within seconds; with enlarging counter wedges the split can be expanded.

• Virtually silent in process
• Inexpensive and dust free
• No vibration or flying debris
• Powerfully effective against deep concrete masses
• Works as an alternative method to noisy percussive demolition
• 80 tonnes of pressure delivers an exceptionally powerful solution
• Precise and controlled

• Removing large masses, plinths, suspended floor slabs, reinforced concrete walls or other redundant reinforced concrete structures
• In working environments such as office blocks, shopping centres, residential buildings and hospitals - anywhere that requires large lumps of material removed quietly and free of vibration
• For use in close quarters and hard to access places where space is restricted or confined