Class F: In Situ Concrete

Delivery to site for each additional mile from the concrete plant further than 5miles (8 km) – – – 1.50 m3 1.50 Mix design, per trial mix – – – 229.13 mix 229.13 Part loads, per m3 below full load – – – 31.14 m3 31.14 Waiting time (in excess of 6min/m3 ‘norm’ discharge time) – – – 67.56 hr 67.56 Making and testing concrete cube 0.69 8.73 – – nr 8.73 Pumping from ready mix truck to point of placing at the rate of 25m3/hour 0.11 1.33 4.28 – m3 5.61 Pumping from ready mix truck to point of placing at the rate of 45m3/hour 0.05 0.64 4.50 – m3 5.14

RESOURCES – PLANT

Misc Concrete

10 t Crane (50% of time) 13.57 1.00m3 concrete skip (50% of time) 0.97 11.30m3/min compressor, 2 tool 44.39 four 54mm poker vibrators 5.24 Total Rate/Hour 64.16

hours £ £ £ rate £

PROVISION OF CONCRETE

Standard mix; cement to BS EN 197-1 Type ST1 – – – 78.45 m3 78.45 Type ST2 – – – 78.92 m3 78.92 Type ST3 – – – 79.30 m3 79.30 Type ST4 – – – 82.40 m3 82.40 Type ST5 – – – 83.78 m3 83.78

Standard mix; sulphate-resisting cement to BS 4027 Type ST1 – – – 88.05 m3 88.05 Type ST2 – – – 88.51 m3 88.51 Type ST3 – – – 88.90 m3 88.90 Type ST4 – – – 92.00 m3 92.00 Type ST5 – – – 93.38 m3 93.38

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

10mm aggregate – – – 82.34 m3 82.34 20mm aggregate – – – 80.73 m3 80.73 40mm aggregate – – – 80.22 m3 80.22

Grade C10 10mm aggregate – – – 83.12 m3 83.12 20mm aggregate – – – 81.51 m3 81.51 40mm aggregate – – – 80.61 m3 80.61

Grade C15 10mm aggregate – – – 83.54 m3 83.54 20mm aggregate – – – 81.91 m3 81.91 40mm aggregate – – – 80.99 m3 80.99

Grade C20 10mm aggregate – – – 83.94 m3 83.94 20mm aggregate – – – 82.29 m3 82.29 40mm aggregate – – – 81.38 m3 81.38

Grade C25 10mm aggregate – – – 86.24 m3 86.24 20mm aggregate – – – 84.59 m3 84.59 40mm aggregate – – – 83.65 m3 83.65

Grade C30 10mm aggregate – – – 80.98 m3 80.98 20mm aggregate – – – 84.97 m3 84.97 40mm aggregate – – – 92.56 m3 92.56

Grade C40 10mm aggregate – – – 92.91 m3 92.91 20mm aggregate – – – 84.06 m3 84.06

Grade C50 10mm aggregate – – – 93.17 m3 93.17 20mm aggregate – – – 91.35 m3 91.35

Grade C60 10mm aggregate – – – 93.37 m3 93.37 20mm aggregate – – – 93.08 m3 93.08

hours £ £ £ rate £

PROVISION OF CONCRETE – cont

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

10mm aggregate – – – 91.71 m3 91.71 20mm aggregate – – – 90.10 m3 90.10 40mm aggregate – – – 89.59 m3 89.59

Grade C10 10mm aggregate – – – 92.64 m3 92.64 20mm aggregate – – – 91.03 m3 91.03 40mm aggregate – – – 90.13 m3 90.13

Grade C15 10mm aggregate – – – 93.22 m3 93.22 20mm aggregate – – – 91.59 m3 91.59 40mm aggregate – – – 90.67 m3 90.67

Grade C20 10mm aggregate – – – 93.72 m3 93.72 20mm aggregate – – – 92.06 m3 92.06 40mm aggregate – – – 91.16 m3 91.16

Grade C25 10mm aggregate – – – 96.34 m3 96.34 20mm aggregate – – – 94.68 m3 94.68 40mm aggregate – – – 93.75 m3 93.75

Grade C30 10mm aggregate – – – 91.23 m3 91.23 20mm aggregate – – – 95.23 m3 95.23 40mm aggregate – – – 102.82 m3 102.82

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

10mm aggregate – – – 88.00 m3 88.00 20mm aggregate – – – 83.60 m3 83.60 40mm aggregate – – – 87.48 m3 87.48

Grade C10 10mm aggregate – – – 90.82 m3 90.82 20mm aggregate – – – 83.91 m3 83.91 40mm aggregate – – – 88.60 m3 88.60

Grade C15 10mm aggregate – – – 92.75 m3 92.75 20mm aggregate – – – 86.92 m3 86.92 40mm aggregate – – – 90.77 m3 90.77

Grade C20 10mm aggregate – – – 94.32 m3 94.32 20mm aggregate – – – 88.39 m3 88.39 40mm aggregate – – – 92.23 m3 92.23

Grade C25 10mm aggregate – – – 94.08 m3 94.08 20mm aggregate – – – 89.88 m3 89.88 40mm aggregate – – – 93.15 m3 93.15

hours £ £ £ rate £

Grade C30 10mm aggregate – – – 95.62 m3 95.62 20mm aggregate – – – 91.38 m3 91.38 40mm aggregate – – – 94.56 m3 94.56

Grade C40 10mm aggregate – – – 100.13 m3 100.13 20mm aggregate – – – 95.73 m3 95.73

Grade C50 10mm aggregate – – – 104.04 m3 104.04 20mm aggregate – – – 100.87 m3 100.87

Grade C60 10mm aggregate – – – 105.26 m3 105.26 20mm aggregate – – – 106.54 m3 106.54

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

10mm aggregate – – – 97.37 m3 97.37 20mm aggregate – – – 92.97 m3 92.97 40mm aggregate – – – 96.85 m3 96.85

Grade C10 10mm aggregate – – – 100.35 m3 100.35 20mm aggregate – – – 93.43 m3 93.43 40mm aggregate – – – 98.12 m3 98.12

Grade C15 10mm aggregate – – – 102.43 m3 102.43 20mm aggregate – – – 96.60 m3 96.60 40mm aggregate – – – 100.45 m3 100.45

Grade C20 10mm aggregate – – – 104.09 m3 104.09 20mm aggregate – – – 98.16 m3 98.16 40mm aggregate – – – 102.01 m3 102.01

Grade C25 10mm aggregate – – – 104.18 m3 104.18 20mm aggregate – – – 99.97 m3 99.97 40mm aggregate – – – 103.24 m3 103.24

Grade C30 10mm aggregate – – – 105.87 m3 105.87 20mm aggregate – – – 101.63 m3 101.63 40mm aggregate – – – 104.81 m3 104.81

PLACING OF CONCRETE; MASS

Blinding; thickness ne 150mm 0.18 17.73 0.70 – m3 18.43 150-300mm 0.16 15.76 1.98 – m3 17.74 300-500mm 0.14 13.79 3.26 – m3 17.05 exceeding 500mm 0.12 11.82 4.55 – m3 16.37

hours £ £ £ rate £

PLACING OF CONCRETE; MASS – cont

Bases, footings, pile caps and ground slabs; thickness ne 150mm 0.20 19.70 12.83 – m3 32.53 150-300mm 0.17 16.75 10.96 – m3 27.71 300-500mm 0.15 14.78 9.68 – m3 24.46 exceeding 500mm 0.14 13.79 8.99 – m3 22.78

ADD to the above for placing against an excavated surface 0.03 2.46 1.58 – m3 4.04

Walls; thickness ne 150mm 0.21 20.69 13.53 – m3 34.22 150-300mm 0.15 14.78 9.69 – m3 24.47 300-500mm 0.13 12.81 8.40 – m3 21.21 exceeding 500mm 0.12 11.82 7.70 – m3 19.52

ADD to the above for placing against an excavated surface 0.03 2.96 1.98 – m3 4.94

Other concrete forms plinth 1000×1000 × 600mm 0.33 32.51 21.23 – m3 53.74 plinth 1500×1500 × 750mm 0.25 24.63 16.10 – m3 40.73 plinth 2000×2000 × 600mm 0.20 19.70 12.83 – m3 32.53 surround to precast concrete manhole chambers 200mm thick 0.29 28.57 18.66 – m3 47.23

PLACING OF CONCRETE; REINFORCED

Bases, footings, pile caps and ground slabs; thickness ne 150mm 0.21 20.69 13.53 – m3 34.22 150-300mm 0.18 17.73 11.55 – m3 29.28 300-500mm 0.16 15.76 10.27 – m3 26.03 exceeding 500mm 0.15 14.78 9.68 – m3 24.46

Suspended slabs; thickness ne 150mm 0.27 26.60 17.38 – m3 43.98 150-300mm 0.21 20.69 13.53 – m3 34.22 300-500mm 0.19 18.72 12.25 – m3 30.97 exceeding 500mm 0.19 18.72 12.25 – m3 30.97

Walls; thickness ne 150mm 0.29 28.57 18.66 – m3 47.23 150-300mm 0.22 21.67 14.12 – m3 35.79 300-500mm 0.20 19.70 12.83 – m3 32.53 exceeding 500mm 0.20 19.70 12.83 – m3 32.53

Columns and piers; cross-sectional area ne 0.03m2 0.50 49.25 32.08 – m3 81.33 0.03-0.10m2 0.40 39.40 25.67 – m3 65.07 0.10-0.25m2 0.35 34.48 22.51 – m3 56.99 0.25-1.00m2 0.35 34.48 22.51 – m3 56.99 exceeding 1m2 0.28 27.58 17.97 – m3 45.55

hours £ £ £ rate £

Beams; cross-sectional area ne 0.03m2 0.50 49.25 32.08 – m3 81.33 0.03-0.10m2 0.40 39.40 25.67 – m3 65.07 0.10-0.25m2 0.35 34.48 22.51 – m3 56.99 0.25-1.00m2 0.35 34.48 22.51 – m3 56.99 exceeding 1m2 0.28 27.58 17.97 – m3 45.55

Casings to metal sections; cross-sectional area ne 0.03m2 0.47 46.30 30.21 – m3 76.51 0.03-0.10m2 0.47 46.30 30.21 – m3 76.51 0.10-0.25m2 0.40 39.40 25.66 – m3 65.06 0.25-1.00m2 0.40 39.40 25.66 – m3 65.06 exceeding 1m2 0.35 34.48 22.51 – m3 56.99

PLACING OF CONCRETE; PRESTRESSED

Suspended slabs; thickness ne 150mm 0.28 27.58 17.97 – m3 45.55 150-300mm 0.22 21.67 14.12 – m3 35.79 300-500mm 0.20 19.70 12.83 – m3 32.53 exceeding 500mm 0.19 18.72 12.25 – m3 30.97

Beams; cross-sectional area ne 0.03m2 0.50 49.25 32.08 – m3 81.33 0.03-0.10m2 0.40 39.40 25.67 – m3 65.07 0.10-0.25m2 0.35 34.48 22.51 – m3 56.99 0.25-1.00m2 0.35 34.48 22.51 – m3 56.99 exceeding 1m2 0.28 27.58 17.97 – m3 45.55