ABSTRACT
GENERAL Notes This section is based around the installation of proprietary systems to new/recently completed works as part of a major scheme, for minor works/repairs outputs will be many times more. Outputs are also based on use of skilled labour, therefore efficiency is high and wastage low (5-7% only allowed) excepting laps where required. RESOURCES - LABOUR Asphalting gang 1 ganger/chargehand (skill rate 4) 14.28 2 unskilled operative (general) 24.88 Total Gang rate / Hour £ 39.16 Damp proofing gang 1 ganger/chargehand (skill rate 4) 14.28 1 skilled operative (skill rate 4) 13.32 1 unskilled operative (general) 12.44 Total Gang rate / Hour £ 40.04 Sprayed/brushed waterproofing gang 1 ganger/chargehand (skill rate 4) - 30% of time 4.28 1 skilled operative (skill rate 4) 13.32 Total Gang rate / Hour £ 17.60 Protective layers - screed gang 1 ganger/chargehand (skill rate 4) 14.28 1 skilled operative (skill rate 4) 13.32 1 unskilled operative (general) 12.44 Total Gang rate / Hour £ 40.04 RESOURCES - PLANT Asphalting 45 litre portable tar boiler including sprayer (50 % of time) 0.36 2 t dumper (50% of time) 2.69 gas oil for ditto 0.71 Total Gang Rate / Hour £ 3.76 Damp proofing 2 t dumper (50% of time) 2.69 gas oil for ditto 0.71 Total Gang Rate / Hour £ 3.40 WATERPROOFING Mastic asphalt; BS 6925 Type T 1097; 20 mm thick; two coats over 300 mm wide; ne 30 degrees to horizontal 0.33 12.81 1.88 11.07 m2 25.77 over 300 mm wide; 30 - 90 degrees to horizontal 0.50 19.41 1.24 11.07 m2 31.73 ne 300 mm wide; at any inclination 0.60 23.30 1.24 11.07 m2 35.61 to domed surfaces 0.75 29.12 1.24 11.07 m2 41.43
Item
Gang hours
Labour £
Plant £
Material £ Unit
Total rate £
'Bituthene 1000'; lapped joints over 300 mm wide; ne 30 degrees to horizontal 0.05 1.98 0.17 7.75 m2 9.91 over 300 mm wide; 30 - 90 degrees to horizontal 0.06 2.38 0.20 9.88 m2 12.47 ne 300 mm wide; at any inclination 0.08 3.18 0.27 9.89 m2 13.34 Extra; one coat primer on vertical surfaces 0.03 1.19 0.10 0.01 m2 1.30
'Bituthene 4000’; lapped joints over 300 mm wide; ne 30 degrees to horizontal 0.05 1.98 0.17 9.55 m2 11.71 over 300 mm wide; 30 - 90 degrees to horizontal 0.06 2.38 1.12 12.74 m2 16.24 ne 300 mm wide; at any inclination 0.08 3.18 1.29 12.74 m2 17.21
'Famguard' (hot applied) with Fam-primer over 300 mm wide; ne 30 degrees to horizontal 0.32 12.70 1.09 18.87 m2 32.66 over 300 mm wide; 30 - 90 degrees to horizontal 0.35 13.89 1.19 19.24 m2 34.32 ne 300 mm wide; at any inclination 0.40 15.88 1.36 22.03 m2 39.27
'Famflex' (hot applied) with Fam-primer over 300 mm wide; ne 30 degrees to horizontal 0.32 12.70 1.09 14.56 m2 28.35 over 300 mm wide; 30 - 90 degrees to horizontal 0.34 13.49 1.16 14.84 m2 29.49 ne 300 mm wide; at any inclination 0.38 15.08 1.29 16.92 m2 33.29
Two coats of RIW liquid asphaltic composition sprayed or brushed on
over 300 mm wide; ne 30 degrees to horizontal 0.03 0.52 0.10 3.80 m2 4.43 over 300 mm wide; 30 - 90 degrees to horizontal 0.03 0.52 0.10 3.80 m2 4.43 ne 300 mm wide; at any inclination 0.04 0.70 0.14 3.80 m2 4.64
Two coats of 'Mulseal' sprayed or brushed on any inclination 0.07 1.22 0.24 4.21 m2 5.67
20 mm thick red tinted sand asphalt layer onto bridge deck 0.02 0.79 0.41 10.89 m2 12.09
SURFACE IMPREGNATION OF CONCRETE
Silane waterproofing Surface impregnation to plain surfaces - - - - m2 3.76
REMOVALOF EXISTING WATERPROOFING
Removal of existing asphalt waterproofing over 300 mm wide; ne 30 degrees to horizontal 0.13 5.05 - - m2 5.05 over 300 mm wide; 30-90 degrees to horizontal 0.18 6.99 - - m2 6.99 over 300 mm wide; at any inclination 0.20 7.77 - - m2 7.77 to domed surfaces 0.25 9.71 - - m2 9.71
