ABSTRACT
Pipework 100 mm m/hr 10 8 7 150 mm m/hr 7 6 5 225 mm m/hr 5 4 3 300 mm m/hr 4 3 2 375 mm m/hr 3 2 2 450 mm m/hr 2 2 1 Bends 100 mm nr/hr 20 17 14 150 mm nr/hr 17 14 13 225 mm nr/hr 13 10 8 300 mm nr/hr 10 8 7 375 mm nr/hr 7 6 5 450 mm nr/hr 3 3 2 Single junctions 100 mm nr/hr 13 10 8 150 mm nr/hr 7 6 5 225 mm nr/hr 6 5 4 300 mm nr/hr 4 3 3 375 mm nr/hr 3 2 2 450 mm nr/hr 2 2 1
Precast concrete manholes in sections
Description Unit Pipelayer Labourer
Place 675 mm dia shaft rings m/hr 1.00 0.30 Place 900 mm manhole rings m/hr 0.60 0.20 Place 1200 mm manhole rings m/hr 0.40 0.10 Place 1500 mm manhole rings m/hr 0.30 0.10 Place 900/675 mm tapers nr/hr 1.00 0.30 Place 1200/675 mm tapers nr/hr 0.60 0.20 Place 1500/675 mm tapers nr/hr 0.50 0.20 Place cover slabs to 675 mm rings nr/hr 2.50 0.80 Place cover slabs to 900 mm rings nr/hr 2.00 0.70 Place cover slabs to 1200 mm rings nr/hr 1.40 0.50 Place cover slabs to 1500 mm rings nr/hr 0.90 0.30 Build in pipes and make good base: 150 mm diameter nr/hr 4.00 - 300 mm diameter nr/hr 2.00 - 450 mm diameter nr/hr 1.00 - Benching 150 mm thick m²/hr 1.20 1.20 Benching 300 mm thick m²/hr 0.60 0.60 Render benching 25 mm thick m²/hr 1.10 1.10 Fix manhole covers frame nr/hr 1.30 1.30
