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