ABSTRACT
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
