E20 Formwork for In situ Concrete

RC 35; Designated mix 82.22 0.67 38.96 – 82.22 m3 121.18 Foundations; poured on or against earth or

unblinded hardcore

RC 35; Designated mix 84.17 0.67 38.96 – 84.17 m3 123.13 Isolated foundations

RC 35; Designated mix 78.30 0.67 38.96 – 78.30 m3 117.26

Reinforced in situ concrete; site mixed;

21N/mm2 – 20mm aggregate (1:2:4); aggregates delivered in 20 tonne loads

Walls; thickness not exceeding 150mm

Site mixed concrete 1:2:4: 21N/mm2;

20mm aggregate; 98.59 0.67 38.96 2.07 98.59 m3 139.62

GEN 1; Designated mix 67.95 0.33 19.50 2.07 67.95 m3 89.52

GEN 2; Designated mix 72.29 0.33 19.50 2.07 72.29 m3 93.86

ST 2; Standard mix 72.56 0.33 19.50 2.07 72.56 m3 94.13

ST 3; Standard mix 73.50 0.33 19.50 2.07 73.50 m3 95.07

RC 35; Designated mix 82.22 0.33 19.50 2.07 82.22 m3 103.79

thickness not exceeding 150-450mm Site mixed concrete 1:2:4: 21N/mm2;

20mm aggregate; 98.59 0.50 29.25 2.07 98.59 m3 129.91

GEN 1; Designated mix 67.95 0.20 11.70 2.07 67.95 m3 81.72

GEN 2; Designated mix 72.29 0.20 11.70 2.07 72.29 m3 86.06

ST 2; Standard mix 72.56 0.20 11.70 2.07 72.56 m3 86.33

ST 3; Standard mix 73.50 0.20 11.70 2.07 73.50 m3 87.27

RC 35; Designated mix 82.22 0.20 11.70 2.07 82.22 m3 95.99

Adjustments for site mixed concrete; Add the

following amounts for aggregates delivered in

different load sizes

850 kg Bulk bags – – – – 33.35 m3 33.35 10 tonne loads – – – – 9.90 m3 9.90

E20 FORMWORK FOR IN SITU CONCRETE

PLAIN VERTICAL FORMWORK

Plain vertical formwork; basic finish

Sides of foundations

height not exceeding 250mm – 0.25 9.75 – 1.25 m 11.00 height 250-500mm – 0.25 9.75 – 2.14 m 11.89 height 500mm-1.00m – 0.33 13.00 – 5.71 m 18.71 height exceeding 1.00m – 0.50 19.50 – 7.13 m2 26.63