Site Works – Bases

By machine 100mm thick 2.00 0.05 1.19 1.19 2.00 m2 4.38 150mm thick 3.00 0.07 1.58 1.55 3.00 m2 6.13 200mm thick 4.00 0.08 1.90 1.62 4.00 m2 7.52 300mm thick 6.00 0.08 1.98 1.73 6.00 m2 9.71 exceeding 300mm thick 24.00 0.17 3.96 3.97 24.00 m3 31.93

By hand 100mm thick 2.00 0.20 4.75 0.12 2.00 m2 6.87 150mm thick 3.60 0.30 7.13 0.12 3.60 m2 10.85 200mm thick 4.80 0.40 9.50 0.20 4.80 m2 14.50 300mm thick 7.20 0.60 14.25 0.12 7.20 m2 21.57 exceeding 300mm thick 24.00 2.00 47.50 0.41 24.00 m3 71.91

Hardcore; difference for each £1.00 increase/decrease in PC price per m3; price will vary with type and source of hardcore

average 75mm thick – – – – 0.07 m2 0.07 average 100mm thick – – – – 0.10 m2 0.10 average 150mm thick – – – – 0.14 m2 0.14 average 200mm thick – – – – 0.19 m2 0.19 average 250mm thick – – – – 0.24 m2 0.24 average 300mm thick – – – – 0.28 m2 0.28 exceeding 300mm thick – – – – 1.04 m3 1.04

TYPE 1 BASES

Type 1granular fill base; PC £20.00 /tonne (£42.90/m3 compacted) By machine

100mm thick 4.95 0.02 1.48 0.60 4.95 m2 7.03 150mm thick 7.42 0.03 1.78 0.60 7.42 m2 9.80 250mm thick 12.38 0.03 2.04 1.19 12.38 m2 15.61 over 250mm thick 49.50 0.20 14.25 3.66 49.50 m3 67.41

By hand (mechanical compaction) 100mm thick 3.30 0.07 4.75 0.04 3.30 m2 8.09 150mm thick 7.42 0.08 5.94 0.06 7.42 m2 13.42 250mm thick 12.38 0.13 8.91 0.10 12.38 m2 21.39 over 250mm thick 24.75 0.20 14.25 0.10 24.75 m3 39.10

Type 1 (crushed concrete) granular fill base; PC £14.00/tonne (£30.80/m3

compacted) By machine

100mm thick 3.08 0.02 1.48 0.39 3.08 m2 4.95 150mm thick 4.62 0.03 1.78 0.60 4.62 m2 7.00 250mm thick 7.70 0.03 2.04 0.99 7.70 m2 10.73 over 250mm thick 14.00 0.20 14.25 3.66 14.00 m3 31.91

PC Labour Labour Plant Excluding site overheads and profit £ hours £ £ £ rate £

TYPE 1 BASES – cont

Type 1 (crushed concrete) granular fill base – cont By hand (mechanical compaction)

100mm thick 3.08 0.07 4.75 0.04 3.08 m2 7.87 150mm thick 4.62 0.08 5.94 0.06 4.62 m2 10.62 250mm thick 7.70 0.13 8.91 0.10 7.70 m2 16.71 over 250mm thick 14.00 0.20 14.25 0.10 14.00 m3 28.35

CELLULAR CONFINED BASES

Geoweb; Greenfix; cellular confinement system for load support or permeable bases below pavings To graded and compacted substrate (not included); on 50mm sharp sand base filled with angular drainage aggregate 20-5mm

Geoweb 75mm depth 8.42 0.05 3.24 1.54 15.02 m2 19.80 Geoweb 100mm depth 9.68 0.05 3.56 1.74 17.71 m2 23.01 Geoweb 150mm depth 12.28 0.06 3.96 1.83 22.89 m2 28.68 Geoweb 200mm depth 16.02 0.08 5.94 1.99 29.22 m2 37.15 Geoweb 300mm depth 19.62 0.10 7.13 2.32 37.98 m2 47.43

SURFACE TREATMENTS TO GRANULAR BASES

Surface treatments Sand blinding; to hardcore base (not included); 25mm thick 1.02 0.03 0.79 – 1.02 m2 1.81 Sand blinding; to hardcore base (not included); 50mm thick 2.05 0.05 1.19 – 2.05 m2 3.24 Filter fabrics; to hardcore base (not included) 0.43 0.01 0.24 – 0.43 m2 0.67