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Drum beat


Bomag has developed a compactor combining a polygon-shaped drum and its Variocontrol computerised control to tackle problematic cohesive soils. The compactor, based on the BW213DH-3, is currently undergoing compaction trials on the A120 at Stansted for contractor John Jones. The drum has a 20 per cent higher axle load which, with the extra force from the Variomatic control, compacts thicker layers of clay materials in fewer passes than conventional smooth or padfoot rollers, Bomag says. Additional benefits include better climbing ability in landfill applications.