rate analysis
DESCRIPTION
construction fieldTRANSCRIPT
BRICK WORK
Half brick wall
volume of brick = 0.215 X 0.1025 X 0.065 = 0.00143
effective volume of a brick = 0.225 X 0.1025 X 0.075 = 0.00173
= 1.000 X 1.000 X 0.1025 = 0.10250
=0.103
= 59.260.002
= 59.00
= 0.103 - 59 X 0.00143244 = 0.01799
Nr of bricks in a square =59
= 546.300.108= 547
One brick wall
header coarse = 1 X 0.5 X 0.215 = 0.1075
effective volume of a brick = 0.215 X 0.1125 X 0.075 = 0.0018
=0.108
= 59.260.002
strecher coarse = 1 X 0.5 X 0.215 = 0.1075
effective volume of a brick = 0.215 X 0.225 X 0.075 = 0.00363
=0.108
X 2 = 59.260.004
Total Nr of bricks = 59.26 + 59.259259 = 118.52
Nr of bricks in a square =118.5
= 1097.390.108
= 1097
Sand & Cement Quantities of 1:5 Mortar
bulk volume of mortar = 1 + 0.33 = 1.33
bulk volume of cement =1.33 X
1= 0.2216667
6
bulk volume of sand =1.33 X
5= 1.1083333
6
=0.222 X 1441 X 0.0179862
= 0.086 Cube501.33
= = 0.4319683 Cube
Nr of bricks per 1m 2
volume of a brick in 1m2
Nr of bricks in 1m2
volume of mortar in 1m2
volume of a brick in 1m2
Nr of bricks in 1m2
Nr of bricks in 1m2
m3
m3
m3
volume of cement in 1m2
volume of sand in 1m2
= 0.086 X 5 = 0.4319683 Cube
Rate analysis for half brick wall
(per square)
materials
550 Bricks @ 7.50 = 4,125.00 add5% wastage = 206.25
1.30 cwt cement @ 790.00 = 1,027.00
0.10 cube sand @ 6800.00 = 680.00
50 gal water @ 1.50 = 75.00 = 6,113.25
labour
1.5 day skilled labour @ 1000.00 = 1,500.00
2 day u/skilled labour @ 600.00 = 1,200.00
add5% scaffolding = 60.00 8,873.25
basic rate per square = 8,873.25
add35% profit & overhead = 3,105.64
11,978.89
FORMWORK
Column Formwork (9 " X 9 " X 5 ')
4 X9
X 5 = 15.00
= 1.39 12 10.76
(i) Material
18.15 sq.ft 25mm thk. Class II timber planks @ 45.00 = 816.75
17.10 L.ft 50X50 mm ClassII timber yorks @ 20.00 = 342.00
16.12 L.ft 50X25mm thk. Class II timber battens @ 12.00 = 193.44
1.50 pounds wire nails @ 95.00 = 142.50 = 1,494.69
(ii) Labour for fabricating
0.5 day carpenter @ 1,000.00 = 500.00
volume of sand in 1m2
A.Making Mould
0.5 day u/skilled labour @ 600.00 = 300.00
total cost for making mould = 2,294.69 = 2,294.69
assume 4 uses & cost per use 2,294.69 = 573.67 = 573.67 4
(i) Material
12 Nos 16mm Dia. 18" long bolts @ 300.00 = 3,600.00
Assume 20 uses & cost per use 3,600.00 = 180.00 = 180.00 20
0.5 ltr mould oil @ 250.00 = 125.00 = 125.00
35 L.ft 100X50mm props @ 40.00 = 1,400.00 Assume 10 uses & cost per use 1,400.00
= 140.00 = 140.00 10 1,018.67
(ii) Labour
0.25 day carpenter @ 1,000.00 = 250.00
0.25 day u/skilled labour @ 600.00 = 150.00
total cost for making mould = 400.00 = 400.00
cost per assembling per use = 1,418.67
Labour
0.25 day carpenter @ 1,000.00 = 250.00
0.25 day u/skilled labour @ 600.00 = 150.00 = 400.00
total cost for 9"X9" column 5'-0" high per use = 1,818.67
= 1,818.67
= 1304.59 1.39
25% profit & overhead = 1,630.74
Beam Formwork ( 9 " X 12 " X 20" )
contact area =9
20 + 212
20 = 5512 12
=55
= 5.11 m2 10.76
B.Assembling(Per use)
C.Dismentling,cleaning & repairing (Per use)
per 1m2
(i) Material
60.00 sq.ft 25mm thk. Class II timber planks @ 45.00 = 2,700.00
24.00 L.ft 50X25 mm ClassII timber batttens @ 12.00 = 288.00
45.00 L.ft 50X50mm thk. Class II timber ledgers @ 20.00 = 900.00
30.00 L.ft 100X50mm thk. Class II timber bearers @ 40.00 = 1,200.00 at bottom of mould
2.00 pounds wire nails @ 95.00 = 190.00 = 5,278.00
(ii) Labour for fabricating
1.5 day carpenter @ 1,000.00 = 1,500.00
2 day u/skilled labour @ 600.00 = 1,200.00 = 7,978.00
total cost for making mould = 7,978.00
assume 4 uses & cost per use 7,978.00 = 1,994.50 = 1,994.50 4
10% add for repairs = 199.45 = 199.45
cost per use = 2,193.95
(i) Material
110.00 L.ft 100X50mm thk. Class II timber props @ 40.00 = 4,400.00
80.00 L.ft 50X50mm thk. Class II bracings to @ 20.00 = 1,600.00 moulds & props
50.00 L.ft 50X50mm thk. Class II bracings to @ 20.00 = 1,000.00 moulds & props
6.00 sq.ft 25mm thk. Class II timber base @ 45.00 = 270.00 plate to props
22.00 nos. wedges @ 15.00 = 330.00 = 7,600.00
Assume 6 uses & cost per use 7,600.00 = 1,266.67 = 1,266.67 6
10% add for repairs = 126.67 = 126.67
cost for assembling = 1,393.33
1.00 day carpenter @ 1,000.00 = 1,000.00
2.00 day u/skilled labour @ 600.00 = 1,200.00
A.Making Mould
B.Assembling(Per use)
C.Labour & sundries
0.50 gal mould oil @ 1125.00 = 562.50
0.50 pounds wire nails @ 95.00 = 47.50
cost per use for assembling = 2,810.00 = 2,810.00
Labour
0.50 day carpenter @ 1,000.00 = 500.00
2 day u/skilled labour @ 600.00 = 1,200.00
cost per use for assembling = 1,700.00 = 1,700.00
total cost for making mould,assemling,repairing,dismentling & cleaning per use = 8,097.28
8,097.28 = 1,584.12
5.11
25% profit & overhead = 1,980.15
Slab Formwork ( 20 " X 10 " )
contact area 20 X 10 = 200
200 = 18.5910.76
(i) Material
220 sq.ft 25mm thk. Class II timber planks @ 45.00 = 9,900.00 with tung & groove jooints
121.00 L.ft 100X50 mm ClassII timber runners @ 40.00 = 4,840.00 at 2'-0" intervals
4.00 pounds wire nails @ 95.00 = 380.00 = 15,120.00
(ii) Labour for fabricating
3.00 day carpenter @ 1,000.00 = 3,000.00
3.00 day u/skilled labour @ 600.00 = 1,800.00 = 19,920.00
total cost for making mould = 19,920.00
assume 4 uses & cost per use 19,920.00 = 4,980.00 4
20% add for repairs = 996.00
D.Dismentling,cleaning & repairing (Per use)
per 1m2
A.Making Panel
cost for assembling = 5,976.00 = 5,976.00
(i) Material
690.00 L.ft 100X50mm thk. Class II timber props @ 40.00 = 27,600.00
66.00 L.ft 50X50mm thk. Class II bracings to @ 20.00 = 1,320.00 props
122.00 nos. wedges @ 15.00 = 1,830.00
333.00 sq.ft 25mm thk. Class II timber base @ 45.00 = 14,985.00 = 45,735.00 plate to props
Assume 6 uses & cost per use 45,735.00 = 7,622.50 = 7,622.50 6
1.00 day carpenter @ 1,000.00 = 1,000.00
4.00 day u/skilled labour @ 600.00 = 2,400.00
1.00 gal mould oil @ 1125.00 = 1,125.00
2.00 pounds wire nails @ 95.00 = 190.00
cost per use for assembling = 4,715.00 = 4,715.00
Labour
0.50 day carpenter @ 1,000.00 = 500.00
2 day u/skilled labour @ 600.00 = 1,200.00
cost per use for assembling = 1,700.00 = 1,700.00
total cost for making mould,assemling,repairing,dismentling & cleaning per use = 20,013.50
20,013.50 = 1,076.73
18.59
25% profit & overhead = 1,345.91
1. 10mm dia. T/S for issolated column footings not exceeding 1.5 m depth from G.L2. 20mm dia. T/S in columns up to DPC level3. 6mm dia. M/S for strruips in columns up to DPC level
B.Assembling(Per use)
C.Labour & sundries
D.Dismentling,cleaning & repairing (Per use)
per 1m2
Ex: Tender hs been called for construction of two storey office building Colombo.analysis the following rate per tender purpose.
Material
Labour
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