Class F: In situ concrete

Delivery to site for each additional mile from the concrete plant further than 5miles (8km) – – – 2.21 m3 2.21 Mix design, per trial mix – – – 270.27 mix 270.27 Part loads, per m3 below full load – – – 55.16 m3 55.16 Waiting time ( in excess of 6mins/m3 'norm' discharge time) – – – 93.77 hr 93.77 Making and testing concrete cube 0.69 10.73 – – nr 10.73 Pumping from ready mix truck to point of placing at the rate of 25m3/hour 0.11 1.64 6.82 – m3 8.46 Pumping from ready mix truck to point of placing at the rate of 45m3/hour 0.05 0.79 7.20 – m3 7.99

RESOURCES – PLANT Concrete

10t Crane (50% of time) 26.85 1.00m3 concrete skip (50% of time) 1.27 11.30m3/min compressor, 2 tool 42.62 four 54mm poker vibrators 5.78

Total Rate/Hour £ 76.52

hours £ £ £ rate £

PROVISION OF CONCRETE

Designed Concrete Strength C12/15 – – – 90.13 m3 90.13 C16/20 – – – 91.26 m3 91.26 C20/25 – – – 92.41 m3 92.41 C25/30 – – – 93.55 m3 93.55 C32/40 – – – 94.69 m3 94.69

Designed Concrete Strength C8/10 – – – 101.72 m3 101.72 RC25/30 – – – 102.85 m3 102.85 RC30/37 – – – 104.00 m3 104.00 RC32/40 – – – 105.13 m3 105.13 RC 40/50 – – – 106.28 m3 106.28

Designated Concrete Grade C7.5

10mm aggregate – – – 91.51 m3 91.51 20mm aggregate – – – 90.13 m3 90.13 40mm aggregate – – – 88.78 m3 88.78

Grade C10 10mm aggregate – – – 92.67 m3 92.67 20mm aggregate – – – 91.26 m3 91.26 40mm aggregate – – – 89.91 m3 89.91

Grade C15 10mm aggregate – – – 93.82 m3 93.82 20mm aggregate – – – 92.41 m3 92.41 40mm aggregate – – – 91.03 m3 91.03

Grade C20 10mm aggregate – – – 94.98 m3 94.98 20mm aggregate – – – 93.55 m3 93.55 40mm aggregate – – – 92.16 m3 92.16

Grade C25 10mm aggregate – – – 96.14 m3 96.14 20mm aggregate – – – 94.69 m3 94.69 40mm aggregate – – – 93.28 m3 93.28

Grade C30 10mm aggregate – – – 99.61 m3 99.61 20mm aggregate – – – 98.70 m3 98.70 40mm aggregate – – – 97.21 m3 97.21

Grade C40 10mm aggregate – – – 106.57 m3 106.57 20mm aggregate – – – 104.97 m3 104.97

Grade C50 10mm aggregate – – – 111.20 m3 111.20 20mm aggregate – – – 109.53 m3 109.53

Grade C60 10mm aggregate – – – 115.83 m3 115.83 20mm aggregate – – – 114.09 m3 114.09

hours £ £ £ rate £

PROVISION OF CONCRETE – cont

Designed mix; sulphate resisting cement to BS 4027 Grade C7.5

10mm aggregate – – – 102.83 m3 102.83 20mm aggregate – – – 101.45 m3 101.45 40mm aggregate – – – 100.10 m3 100.10

Grade C10 10mm aggregate – – – 104.17 m3 104.17 20mm aggregate – – – 102.77 m3 102.77 40mm aggregate – – – 101.41 m3 101.41

Grade C15 10mm aggregate – – – 105.51 m3 105.51 20mm aggregate – – – 104.10 m3 104.10 40mm aggregate – – – 102.73 m3 102.73

Grade C20 10mm aggregate – – – 106.79 m3 106.79 20mm aggregate – – – 105.35 m3 105.35 40mm aggregate – – – 103.96 m3 103.96

Grade C25 10mm aggregate – – – 108.33 m3 108.33 20mm aggregate – – – 106.89 m3 106.89 40mm aggregate – – – 105.48 m3 105.48

Grade C30 10mm aggregate – – – 112.00 m3 112.00 20mm aggregate – – – 111.08 m3 111.08 40mm aggregate – – – 109.59 m3 109.59

Prescribed mix; cement to BS EN 197-1 Grade C7.5

10mm aggregate – – – 93.80 m3 93.80 20mm aggregate – – – 92.38 m3 92.38 40mm aggregate – – – 91.00 m3 91.00

Grade C10 10mm aggregate – – – 94.98 m3 94.98 20mm aggregate – – – 93.55 m3 93.55 40mm aggregate – – – 92.16 m3 92.16

Grade C15 10mm aggregate – – – 96.17 m3 96.17 20mm aggregate – – – 94.72 m3 94.72 40mm aggregate – – – 93.30 m3 93.30

Grade C20 10mm aggregate – – – 97.35 m3 97.35 20mm aggregate – – – 95.90 m3 95.90 40mm aggregate – – – 94.46 m3 94.46

Grade C25 10mm aggregate – – – 98.54 m3 98.54 20mm aggregate – – – 97.06 m3 97.06 40mm aggregate – – – 98.45 m3 98.45

hours £ £ £ rate £

Grade C30 10mm aggregate – – – 102.70 m3 102.70 20mm aggregate – – – 101.15 m3 101.15 40mm aggregate – – – 110.04 m3 110.04

Grade C40 10mm aggregate – – – 109.22 m3 109.22 20mm aggregate – – – 107.59 m3 107.59

Grade C50 10mm aggregate – – – 113.98 m3 113.98 20mm aggregate – – – 112.27 m3 112.27

Grade C60 10mm aggregate – – – 118.73 m3 118.73 20mm aggregate – – – 116.94 m3 116.94

Prescribed mix; sulphate resisting cement to BS 4027 Grade C7.5

10mm aggregate – – – 105.12 m3 105.12 20mm aggregate – – – 103.70 m3 103.70 40mm aggregate – – – 102.32 m3 102.32

Grade C10 10mm aggregate – – – 106.48 m3 106.48 20mm aggregate – – – 105.05 m3 105.05 40mm aggregate – – – 103.66 m3 103.66

Grade C15 10mm aggregate – – – 107.86 m3 107.86 20mm aggregate – – – 106.41 m3 106.41 40mm aggregate – – – 105.00 m3 105.00

Grade C20 10mm aggregate – – – 109.16 m3 109.16 20mm aggregate – – – 107.70 m3 107.70 40mm aggregate – – – 106.27 m3 106.27

Grade C25 10mm aggregate – – – 110.74 m3 110.74 20mm aggregate – – – 109.26 m3 109.26 40mm aggregate – – – 110.65 m3 110.65

Grade C30 10mm aggregate – – – 115.08 m3 115.08 20mm aggregate – – – 113.54 m3 113.54 40mm aggregate – – – 122.43 m3 122.43

PLACING OF CONCRETE; MASS Blinding; thickness

ne 150mm 0.18 21.33 0.82 – m3 22.15 150 – 300mm 0.16 18.96 2.35 – m3 21.31 300-500mm 0.14 16.59 3.88 – m3 20.47 exceeding 500mm 0.12 14.22 5.41 – m3 19.63

hours £ £ £ rate £

PLACING OF CONCRETE; MASS – cont Bases, footings, pile caps and ground slabs; thickness

ne 150mm 0.20 23.70 15.30 – m3 39.00 150 – 300mm 0.17 20.14 13.06 – m3 33.20 300-500mm 0.15 17.77 11.53 – m3 29.30 exceeding 500mm 0.14 16.59 10.72 – m3 27.31

ADD to the above for placing against an excavated surface 0.03 2.96 1.89 – m3 4.85

Walls; thickness ne 150mm 0.21 24.88 16.12 – m3 41.00 150 – 300mm 0.15 17.77 11.54 – m3 29.31 300-500mm 0.13 15.40 10.00 – m3 25.40 exceeding 500mm 0.12 14.22 9.18 – m3 23.40

ADD to the above for placing against an excavated surface 0.03 3.55 2.35 – m3 5.90

Other concrete forms plinth 1000×1000 × 600mm 0.33 39.10 25.30 – m3 64.40 plinth 1500×1500 × 750mm 0.25 29.62 19.19 – m3 48.81 plinth 2000×2000 × 600mm 0.20 23.70 15.30 – m3 39.00 surround to precast concrete manhole chambers 200mm thick 0.29 34.36 22.24 – m3 56.60

PLACING OF CONCRETE; REINFORCED Bases, footings, pile caps and ground slabs; thickness

ne 150mm 0.21 24.88 16.12 – m3 41.00 150 – 300mm 0.18 21.33 13.78 – m3 35.11 300-500mm 0.16 18.96 12.24 – m3 31.20 exceeding 500mm 0.15 17.77 11.53 – m3 29.30

Suspended slabs; thickness ne 150mm 0.27 31.99 20.72 – m3 52.71 150 – 300mm 0.21 24.88 16.12 – m3 41.00 300-500mm 0.19 22.51 14.59 – m3 37.10 exceeding 500mm 0.19 22.51 14.59 – m3 37.10

Walls; thickness ne 150mm 0.29 34.36 22.24 – m3 56.60 150 – 300mm 0.22 26.07 16.84 – m3 42.91 300-500mm 0.20 23.70 15.30 – m3 39.00 exceeding 500mm 0.20 23.70 15.30 – m3 39.00

Columns and piers; cross-sectional area ne 0.03m2 0.50 59.24 38.26 – m3 97.50 0.03-0.10m2 0.40 47.39 30.62 – m3 78.01 0.10-0.25m2 0.35 41.47 26.84 – m3 68.31 0.25-1.00m2 0.35 41.47 26.84 – m3 68.31 exceeding 1m2 0.28 33.18 21.42 – m3 54.60

Beams; cross-sectional area ne 0.03m2 0.50 59.24 38.26 – m3 97.50 0.03-0.10m2 0.40 47.39 30.62 – m3 78.01 0.10-0.25m2 0.35 41.47 26.84 – m3 68.31 0.25-1.00m2 0.35 41.47 26.84 – m3 68.31 exceeding 1m2 0.28 33.18 21.42 – m3 54.60

hours £ £ £ rate £

Casings to metal sections; cross-sectional area ne 0.03m2 0.47 55.69 36.02 – m3 91.71 0.03-0.10m2 0.47 55.69 36.02 – m3 91.71 0.10-0.25m2 0.40 47.39 30.61 – m3 78.00 0.25-1.00m2 0.40 47.39 30.61 – m3 78.00 exceeding 1m2 0.35 41.47 26.84 – m3 68.31

PLACING OF CONCRETE; PRESTRESSED Suspended slabs; thickness

ne 150mm 0.28 33.18 21.42 – m3 54.60 150 – 300mm 0.22 26.07 16.84 – m3 42.91 300-500mm 0.20 23.70 15.30 – m3 39.00 exceeding 500mm 0.19 22.51 14.59 – m3 37.10

Beams; cross-sectional area ne 0.03m2 0.50 59.24 38.26 – m3 97.50 0.03-0.10m2 0.40 47.39 30.62 – m3 78.01 0.10-0.25m2 0.35 41.47 26.84 – m3 68.31 0.25-1.00m2 0.35 41.47 26.84 – m3 68.31 exceeding 1m2 0.28 33.18 21.42 – m3 54.60