ABSTRACT
Break out bitmac surfaces on sub-base or hardcore 75 mm thick m²/hr 1.00 25 13 50 17 100 mm thick m²/hr 1.00 20 10 33 11 Break out asphalt roads on hardcore: 150 mm thick m²/hr 0.60 8 4 11 4 225 mm thick m²/hr 0.50 6 3 8 3 300 mm thick m²/hr 0.40 4 2 7 2 Remove existing set paving m²/hr 0.80 10 5 17 6 Break out brickwork in cement mortar: 215 mm thick m²/hr 0.20 3 2 5 2 Break out concrete in areas 100 mm thick m²/hr 0.90 9 5 14 5 150 mm thick m²/hr 0.50 7 4 10 4 225 mm thick m²/hr 0.30 4 2 6 2 300 mm thick m²/hr 0.20 3 1 4 1 Break out reinforced concrete m³/hr 0.02 0.40 0.20 0.60 0.20 Break out sandstone m³/hr 0.03 0.50 0.30 0.80 0.30
