ABSTRACT
Walls; thickness ne 150 mm 0.21 19.72 6.14 86.87 m3 112.73 150 - 300 mm 0.15 14.09 4.39 86.87 m3 105.34 300 - 500 mm 0.13 12.21 3.81 86.87 m3 102.88 exceeding 500 mm 0.12 11.27 3.50 86.87 m3 101.64
Suspended slabs; thickness ne 150 mm 0.27 25.36 7.89 86.87 m3 120.11 150 - 300 mm 0.21 19.72 6.14 86.87 m3 112.73 300 - 500 mm 0.19 17.85 5.56 86.87 m3 110.27 exceeding 500 mm 0.19 17.85 5.56 86.87 m3 110.27
Columns, piers and beams; cross-sectional area ne 0.03 m2 0.50 46.96 14.57 86.87 m3 148.40 0.03 - 0.10 m2 0.40 37.57 11.66 86.87 m3 136.09 0.10 - 0.25 m2 0.35 32.87 10.22 86.87 m3 129.96 0.12 - 1.00 m2 0.35 32.87 10.22 86.87 m3 129.96 exceeding 1 m2 0.28 26.30 8.16 86.87 m3 121.33
ADD to the above prices for sulphate resisting cement - - - 10.66 m3 10.66 air entrained concrete - - - 5.50 m3 5.50 water repellent concrete - - - 5.54 m3 5.54
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IN-SITU CONCRETE – cont’d In-situ concrete Grade C30/20 Bases, footings, pile caps and ground beams; thickness ne 150 mm 0.21 19.72 6.14 89.75 m3 115.62 150 - 300 mm 0.18 16.91 5.24 89.75 m3 111.90 300 - 500 mm 0.15 14.09 4.39 89.75 m3 108.23 exceeding 500 mm 0.14 13.15 4.08 89.75 m3 106.98 Walls; thickness ne 150 mm 0.22 20.66 6.41 89.75 m3 116.83 150 - 300 mm 0.16 15.03 5.78 89.75 m3 110.57 300 - 500 mm 0.13 12.21 4.72 89.75 m3 106.68 exceeding 500 mm 0.12 11.27 4.34 89.75 m3 105.36 Suspended slabs; thickness ne 150 mm 0.28 26.30 10.12 89.75 m3 126.18 150 - 300 mm 0.22 20.66 7.96 89.75 m3 118.37 300 - 500 mm 0.19 17.85 6.89 89.75 m3 114.49 exceeding 500 mm 0.18 16.91 6.51 89.75 m3 113.17 Columns, piers and beams; cross-sectional area ne 0.03 m2 0.53 49.78 19.18 89.75 m3 158.71 0.03 - 0.10 m2 0.42 39.45 15.19 89.75 m3 144.39 0.10 - 0.25 m2 0.36 33.81 13.02 89.75 m3 136.58 0.25 - 1.00 m2 0.35 32.87 12.67 89.75 m3 135.30 exceeding 1 m2 0.28 26.30 10.12 89.75 m3 126.18 ADD to the above prices for sulphate resisting cement - - - 10.66 m3 10.66 air entrained concrete - - - 5.50 m3 5.50 water repellent concrete - - - 5.54 m3 5.54 PRECAST CONCRETE The cost of precast concrete item is very much dependent on the complexity of the moulds, the number of units to be cast from each mould and the size and the weight of the unit to be handled. The unit rates below are for standard precast items that are often to be found on a Civil Engineering project. It would be misleading to quote for indicative costs for tailor-made precast concrete units and it is advisable to contact specialist manufacturers for guide prices. Pretensioned prestressed beams; concrete Grade C20 Beams 100 x 65 x 1050 mm long 1.00 3.32 1.88 7.75 nr 12.95 265 x 65 x 1800 mm long 1.00 4.16 3.94 29.28 nr 37.38 Inverted 'T' beams, flange width 495 mm section T1; 8 m long, 380 mm deep; mass 1.88t - - - - nr 755.18 section T2; 9 m long, 420 mm deep; mass 2.29t - - - - nr 904.66 section T3; 11 m long, 535 mm deep; mass 3.02t - - - - nr 1061.98 section T4; 12 m long, 575 mm deep; mass 3.54t - - - - nr 1179.99 section T5; 13 m long, 615 mm deep; mass 4.08t - - - - nr 1219.32 section T6; 13 m long, 655 mm deep; mass 4.33t - - - - nr 1219.32 section T7; 12 m long, 695 mm deep; mass 4.95t - - - - nr 1415.97 section T8; 15 m long, 735 mm deep; mass 5.60t - - - - nr 1533.99 section T9; 16 m long, 775 mm deep; mass 6.28t - - - - nr 1651.99 section T10; 18 m long, 815 mm deep; mass 7.43t - - - - nr 1848.65
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'M' beams, flange width 970 mm section M2; 17 m long, 720 mm deep; mass 12.95t - - - - nr 4011.94 section M3; 18 m long, 800 mm deep; mass 15.11t - - - - nr 3775.95 section M6; 22 m long, 1040 mm deep; mass 20.48t - - - - nr 6057.25 section M8; 25 m long, 1200 mm deep; mass 23.68t - - - - nr 7866.56
'U' beams, base width 970 mm section U3; 16 m long, 900 mm deep; mass 19.24t - - - - nr 6765.23 section U5; 20 m long, 1000 mm deep; mass 25.64t - - - - nr 8653.20 section U8; 24 m long, 1200 mm deep; mass 34.56t - - - - nr 11721.19 section U12; 30 m long, 1600 mm deep; mass 52.74t - - - - nr 16047.79
Precast concrete culverts, cattle creeps and subway units; rebated joints Rectangular cross section
500 mm high x 1000 mm wide 1.00 4.51 4.97 275.00 m 284.48 1000 mm high x 1500 mm wide 1.00 10.04 11.41 450.00 m 471.45 1500 mm high x 1500 mm wide 1.00 18.20 20.48 525.00 m 563.68 2000 mm high x 2750 mm wide 1.00 34.16 32.58 1540.00 m 1606.73 2750 mm high x 3000 mm wide 1.00 45.21 65.41 1700.00 m 1810.61 Extra for units curved on plan to less than 20 m radius - - - 280.00 m 280.00
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SURFACE FINISH OF CONCRETE – FORMWORK Materials Formwork materials include for shutter, bracing, ties, support, kentledge and all consumables. These unit costs are based upon those outputs and prices detailed in Civil Engineering - Concrete Formwork but are referenced to The Specification for Highway Works, clause 1708. The following unit rates do not include for formwork outside the pay line and are based on an optimum of a minimum 8 uses with 10% per use towards the cost of repairs / replacement of components damaged during disassembly. ADJUST formwork material costs generally depending on the number of uses: Nr of Use % Adjustment Inclusion for waste 1 Add 90 - 170% 7% 2 Add 50 - 180% 7% 3 Add 15 - 30% 6% 6 Add 5 - 10% 5% 8 No change 5% 10 Deduct 5 - 7% 5% Definitions 'Class F1' formwork is rough finish 'Class F2' formwork is fair finish 'Class F3' formwork is extra smooth finish Formwork Class F1 Horizontal more than 300 mm wide 0.52 39.36 5.95 6.70 m2 52.01 Inclined more than 300 mm wide 0.55 41.63 6.29 9.01 m2 56.94 Vertical more than 300 mm wide 0.61 46.17 6.98 9.63 m2 62.78 300 mm wide or less at any inclination 0.72 54.50 8.23 8.98 m2 71.72 Curved of both girth and width more than 300 mm at any inclination 0.95 71.91 10.87 10.78 m2 93.55 Curved of girth or width of 300 mm or less at any inclination 0.72 54.50 8.23 10.78 m2 73.51 Domed 1.20 90.83 13.72 13.45 m2 118.00 Void former cross-section 100 x 100 mm 0.07 5.30 0.29 3.42 m 9.01 Void former cross-section 250 x 250 mm 0.12 9.08 0.49 8.73 m 18.30 Void former cross-section 500 x 500 mm 0.30 22.71 1.22 17.47 m 41.40 Formwork Class F2 Horizontal more than 300 mm wide 0.54 40.88 6.18 11.97 m2 59.02 Inclined more than 300 mm wide 0.57 43.15 6.52 18.37 m2 68.04 Vertical more than 300 mm wide 0.63 47.69 7.21 19.02 m2 73.92 300 mm wide or less at any inclination 0.74 56.01 8.46 18.37 m2 82.85 Curved of both girth and width more than 300 mm at any inclination 0.98 74.18 11.21 22.23 m2 107.61 Curved of girth or width of 300 mm or less at any inclination 0.75 56.77 8.58 22.23 m2 87.58 Domed 1.40 105.97 16.01 28.68 m2 150.66
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Formwork Class F3 Horizontal more than 300 mm wide 0.56 42.39 6.40 14.30 m2 63.09 Inclined more than 300 mm wide 0.59 44.66 6.75 20.70 m2 72.11 Vertical more than 300 mm wide 0.65 49.20 7.44 21.35 m2 77.99 300 mm wide or less at any inclination 0.76 57.53 8.69 20.70 m2 86.92 Curved of both girth and width more than 300 mm at any inclination 0.99 74.94 11.32 24.56 m2 110.82 Curved of girth or width of 300 mm or less at any inclination 0.77 58.28 8.81 24.56 m2 91.65 Domed 1.45 109.76 16.58 31.01 m2 157.35
Formwork ancillaries Allowance for additional craneage and rub up where required 0.13 9.84 1.49 0.19 m2 11.52
PATTERNED PROFILE FORMWORK
Patterned Profile Formwork Extra over formwork for patterned profile form liners, INSITEX or similar - - - - m2 34.85
STEEL REINFORCEMENT FOR STRUCTURES
Stainless steel bars Bar reinforcement nominal size 16 mm and under
not exceeding 12 m in length 6.74 766.51 78.32 3250.00 tonne 4094.83 Bar reinforcement nominal size 20 mm and over not exceeding 12 m in length
20 mm nominal size 4.44 504.94 51.59 3100.00 tonne 3656.54 25 mm nominal size 4.44 504.94 51.59 3000.00 tonne 3556.54 32 mm nominal size 4.44 504.94 51.59 3000.00 tonne 3556.54
ADD to the above for bars 12 - 13.5 m long - - - 18.00 tonne 18.00 13.5 - 15 m long - - - 18.00 tonne 18.00 over 15 m long; per 500 mm increment - - - 4.00 tonne 4.00
High yield steel bars BS 4449; deformed, Grade 500C Bar reinforcement nominal size 16 mm and under
not exceeding 12 m in length 6.74 766.51 78.32 490.00 tonne 1334.83 Bar reinforcement nominal size 20 mm and over not exceeding 12 m in length
20 mm nominal size 4.44 504.94 51.59 530.00 tonne 1086.54 25 mm nominal size 4.44 504.94 51.59 530.00 tonne 1086.54 32 mm nominal size 4.44 504.94 51.59 535.00 tonne 1091.54 40 mm nominal size 4.44 504.94 51.59 540.00 tonne 1096.54
ADD to the above for bars 12 - 13.5 m long - - - 18.00 - 18.00 13.5 - 15 m long - - - 18.00 - 18.00 over 15 m long; per 500 mm increment - - - 4.00 - 4.00
Helical reinforcement nominal size 16 mm and under
ne 12 m in length 6.74 766.51 78.32 551.94 tonne 1396.77 Helical reinforcement nominal size 20 mm and over
20 mm nominal size 4.44 504.94 51.59 535.30 tonne 1091.84 25 mm nominal size 4.44 504.94 51.59 535.30 tonne 1091.84 32 mm nominal size 4.44 504.94 51.59 540.35 tonne 1096.89 40 mm nominal size 4.44 504.94 51.59 545.40 tonne 1101.94
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STEEL REINFORCEMENT FOR STRUCTURES - cont’d High yield steel bars BS 4449; deformed, Grade 500C – cont’d Dowels 16 mm diameter x 600 mm long 0.10 11.37 1.16 2.19 nr 14.72 20 mm diameter x 600 mm long 0.10 11.37 1.16 2.93 nr 15.47 25 mm diameter x 600 mm long 0.10 11.37 1.16 4.18 nr 16.72 32 mm diameter x 600 mm long 0.10 11.37 1.16 6.44 nr 18.97 Mild steel bars BS 4449; Grade 250 Bar reinforcement nominal size 16 mm and under ne 12 m in length 6.74 766.51 78.32 558.65 tonne 1403.48 Bar reinforcement nominal size 20 mm and over; not exceeding 12 m in length 20 mm nominal size 4.44 504.94 51.59 531.74 tonne 1088.28 25 mm nominal size 4.44 504.94 51.59 531.74 tonne 1088.28 32 mm nominal size 4.44 504.94 51.59 532.27 tonne 1088.81 40 mm nominal size 4.44 504.94 51.59 554.16 tonne 1110.69 ADD to the above for bars 12 - 13.5 m long - - - 18.00 tonne 18.00 13.5 - 15 m long - - - 18.00 tonne 18.00 over 15 m long, per 500 mm increment - - - 4.00 tonne 4.00 ADD for cutting, bending, tagging and baling reinforcement on site 6 mm nominal size 4.87 176.16 56.60 1.50 tonne 234.26 8 mm nominal size 4.58 165.67 53.22 1.50 tonne 220.39 10 mm nominal size 3.42 123.71 39.74 1.50 tonne 164.95 12 mm nominal size 2.55 92.24 29.64 1.50 tonne 123.38 16 mm nominal size 2.03 73.43 23.59 1.50 tonne 98.52 20 mm nominal size 1.68 60.77 19.52 1.50 tonne 81.79 25 mm nominal size 1.68 60.77 19.52 1.50 tonne 81.79 32 mm nominal size 1.39 50.28 16.16 1.50 tonne 67.94 40 mm nominal size 1.39 50.28 16.16 1.50 tonne 67.94 Fabric reinforcement; high yield steel BS 4483 Fabric reinforcement BS ref A98; nominal mass 1.54 kg/m2 0.03 3.41 0.35 1.66 m2 5.42 BS ref A142; nominal mass 2.22 kg/m2 0.03 3.41 0.35 1.71 m2 5.48 BS ref A193; nominal mass 3.02 kg/m2 0.04 4.55 0.46 2.33 m2 7.35 BS ref A252; nominal mass 3.95 kg/m2 0.04 4.55 0.46 3.04 m2 8.05 BS ref A393; nominal mass 6.16 kg/m2 0.07 7.96 0.82 4.75 m2 13.53 BS ref B196; nominal mass 3.05 kg/m2 0.04 4.55 0.46 2.36 m2 7.37 BS ref B283; nominal mass 3.73 kg/m2 0.04 4.55 0.46 2.90 m2 7.91 BS ref B385; nominal mass 4.53 kg/m2 0.05 5.69 0.59 3.50 m2 9.77 BS ref B503; nominal mass 5.93 kg/m2 0.05 5.69 0.59 4.59 m2 10.86 BS ref B785; nominal mass 8.14 kg/m2 0.08 9.10 0.93 6.28 m2 16.31 BS ref B1131; nominal mass 10.90 kg/m2 0.09 10.24 1.05 8.41 m2 19.69 BS ref C282; nominal mass 2.61 kg/m2 0.03 3.41 0.35 2.02 m2 5.79 BS ref C385; nominal mass 3.41 kg/m2 0.04 4.55 0.46 2.65 m2 7.66 BS ref C503; nominal mass 4.34 kg/m2 0.05 5.69 0.59 3.36 m2 9.63 BS ref C636; nominal mass 5.55 kg/m2 0.05 5.69 0.59 4.30 m2 10.57 BS ref C785; nominal mass 6.72 kg/m2 0.07 7.96 0.82 5.16 m2 13.94 BS ref D49; nominal mass 0.77 kg/m2 0.02 2.27 0.23 1.81 m2 4.31 BS ref D98; nominal mass 1.54 kg/m2 0.02 2.27 0.23 1.81 m2 4.31
