Conversion Tables for materials
-
Upload
isaac-mureithi-maina -
Category
Documents
-
view
15 -
download
1
Transcript of Conversion Tables for materials
CONVERSION TABLES FOR VARIOUS CONSTRUCTION MATERIALS
1. CONCRETE: (Materials per M3)
Nominal mixby volume
Cement(1.442kg/ M3)
Sand1602kg/ M3
Aggregate(1.442kg/ M3)
TonM3 Ton M3 Ton M3
a. 1:1:2
b. 1:1½ :3
c. 1:2:4
d. 1:3:6
e. 1:4:8
0.52
0.39
0.30
0.22
0.17
0.36
0.27
0.21
0.15
0.12
0.58
0.64
0.69
0.72
0.74
0.36
0.40
0.43
0.45
0.34
1.05
1.15
1.23
1.30
1.34
0.73
0.80
0.85
0.90
0.93
Note:
a. waste factors (stockpile)
i) 5% for cement
ii) 10% for sand
iii) 2½ waste on all to cover residue waste in barrows and mixer.
2. STEEL REINFORCEMENT
A. Density 7850KG/M 3
BarRound bars
Kg/M
Square twisted barKg/M
6mm
8mm
10mm
12mm
16mm
20mm
25mm
32mm
38mm
40mm
0.222
0.395
0.616
0.888
1.579
2.466
3.854
6.313
8.904
9.870
0.283
0.502
0.785
1.130
2.007
3.136
4.906
8.038
11.335
12.564
B. nominal weights of Fabric Mesh
i) A – 198 = 1.54kg/M2
ii) A – 142 = 2.22kg/ M2
iii) A – 193 = 3.62kg/ M2
iv) A – 252 = 3.95kg/ M2
v) A – 393 = 6.16kg/ M2
For estimating purposes
i) Beams - 220kg/ M3 of concrete
ii) Columns - 150kg/ M3 of concrete
iii) Floor slabs (125) - 20kg/ M2 of concrete
3. CONCRETE BLOCKS
a) Metric size blocks (390mm x 190mm) = 12.5 blocks per M2
b) Imperial size blocks (10” x 9”) = 9.25 ditto
4. BUILDING STONE
a) Imperial size 9” x 18” on the face = 10.50 No. per SM
Note:
The above is for 18” long stones per SM.
5. CONCRETE ROOFING TILES
TILE SIZE NO. PER SM REMARKS
i)
ii)
iii)
iv)
v)
420mm x 335mm (Mareba)
Ditto
415mm x 240mm (Mangalore tiles)
380mm x 230mm (Manson-Hart)
420mm x 330mm (Manson-Hart)
9.70
10.20
15.48
16.14
9.70
75mm lap
87mm lap
Single roll
Double roll
GUIDE TO TRANSPORTERS (MAREBA)
Tonnage No. of Tiles Tonnage No. of Tiles
1
2
4
7
200
400
800
1400
8
10
12
25
1600
2000
2400
5000
Note:
a. Allow 2% breakage in Nairobi and upto 5% outside.
b. For half round ridge tiles size 408 x 204mm, the effective cover per ridge/hip tile is 300 x 204mm.
6. G.C.I. SHEETING
a. Gauges 24 & 26: Cover width per M = 762mm
7. RESINCOT: I.T.4 AND I.T.5
a. I.T.4 gauge 24 & 26: Cover width per M = 685mm
b. I.T.5 ditto = 635mm
8. PLASTER
Materials per M 3
Nominal mix by volume
Cement(1442kg/ M3
Sand(1602kg/ M3
1:3
1:4
Ton M3 Ton M3
0.48
0.38
0.33
0.27
1.60
1.70
1.00
1.06
9. MORTAR ON WALLING
Wall Thickness Volume of dried mortar per SM
90mm
140mm
190mm
225mm
240mm
0.00675 M3
0.01005 M3
0.01425 M3
0.017 M3
0.018 M3
Notes:
a. Joint thickness approx. 10mm
b. Volume of mortar approx. double for stone walling
c. 1 bag of cement (50kg) constructs approx. 8 M2 of 225mm thick block walling
10.PAINT
Application Paint typeCoverage per liter (SM)
per coat
Glass finishes
Wall finishes
Wood finishes
Super gloss
Nu – plastic
Vinly wall sheen
Red wood seal
Polyurethane
12 – 14
14 – 16
13 – 15
14 – 16
Other Data on Paint
1 M2 - Takes approx. 0.07 liters/1 coat
- Ditto - 0.14 ditto/2 coats
- Ditto - 0.21 ditto/3 coats
11.STEEL CASEMENT WINDOWS
PANES/ M2 PUTTYSTEEL KG/ M2
Not exceeding 0.10
0.10 – 0.50
0.50 – 1.00
Exceeding 1.00
1.260
0.625
0.500
0.460
Note:
0.09kg of putty will cover I meter girth of glass.