Mini pocket technical Diary :
1 Gunta = 121 Sq yards.
1 Gunta = 101.171 Sq Meter.
1 Gaj = 1 Yard
1 Yard = 36 inch
1 Yard = 3 feet
1 Yard = 0.9144 meter =
1 mtr.
1 sq Yard = 0.83612 Sq meter.
1 sq Yard = 9 sq feet.
1 Sq yard = 1296 Sq inch.
1 Meter = 1.0936 Yards.
1 Meter = 39.370 inch.
1 Meter = 3.280 feet.
1 Sq meter = 1.1959 Sq yard.
1 Sq meter = 1550 Sq inch.
1 Sq Meter = 10.763 Sq feet.
1 feet = 0.304 meter.
1 feet = 0.333 yards.
1 feet =12 inch
1 Sq feet = 0.111 Sq Yard.
1 Sq feet = 0.09290 Sq Meter.
1 Sq feet = 144 Sq inch.
1 inch = 2.54 cm.
1 Inch = 0.0254 meter.
1 Inch = 0.0277 yards.
1 Inch = 0.0833 feet.
1 Sq Inch = 0.00064516 Sq Meter.
1 Sq Inch = 0.00077160 Sq Yards.
1 Sq Inch = 0.00694444 Sq feet.
1 Acre = 4046.86 Sq Meter.
1 Acre = 4840 Sq yards.
1 Acre = 43560 Sq feet.
CONCRETE GRADE :
M5 = 1:4:8
M10= 1:3:6
M15= 1:2:4
M20= 1:1.5:3
M25= 1:1:2
CLEAR COVER TO MAIN REINFORCEMENT:
1.FOOTINGS : 50 mm
2.RAFT FOUNDATION.TOP : 50 mm
3.RAFT FOUNDATION.BOTTOM/SIDES : 75 mm
4.STRAP BEAM : 50 mm
5.GRADE SLAB : 20 mm
6.COLUMN : 40 mm
7.SHEAR WALL : 25 mm
8.BEAMS : 25 mm
9.SLABS : 15 mm
10.FLAT SLAB : 20 mm
11.STAIRCASE : 15 mm
12.RET. WALL : 20/ 25 mm on earth
13.WATER RETAINING STRUCTURES : 20/30 mm
WEIGHT OF ROD PER METER LENGTH:
DIA WEIGHT PER METER
6mm = 0.222Kg
8mm = 0.395 Kg
10mm = 0.616 Kg
12mm = 0.888 Kg
16mm = 1.578 Kg
20mm = 2.466 Kg
25mm = 3.853 Kg
32mm = 6.313 Kg
40mm = 9.865 Kg
1bag cement-50kg
1feet-0.3048m
1m-3.28ft
1sq.m-10.76sq.f ¬t
1cu.m-35.28cu.f ¬t
1acre-43560sq.f ¬t
1cent-435.6sq.f ¬t
1hectare-2.47ac ¬re
1acre-100cent-4 ¬046.724sq.m
1ground-2400sq. ¬ft
1unit-100cu.ft- ¬2.83cu.m
1square-100sq.f ¬t
1 M LENGTH STEEL ROD I ITS VOLUME
V=(Pi/4)*Dia x DiaX
L=(3.14/4)x D x D X 1 (for
1m length) Density of Steel=7850 kg/ cub meter
Weight = Volume x Density=(3.14/4)x D x D X
1x7850 (if D is in mm ) So = ((3.14/4)x D x D X
1x7850)/(1000x1000) = Dodd/162.27
DESIGN MIX:
M10 ( 1 : 3.92 : 5.62)
Cement : 210 Kg/ M 3
20 mm Jelly : 708 Kg/ M 3
12.5 mm Jelly : 472 Kg/ M 3
River sand : 823 Kg/ M 3
Total water : 185 Kg/ M 3
Fresh concrete density: 2398 Kg/M 3
M20 ( 1 : 2.48 : 3.55)
Cement : 320 Kg/ M 3
20 mm Jelly : 683 Kg/ M 3
12.5 mm Jelly : 455 Kg/ M 3
River sand : 794 Kg/ M 3
Total water : 176 Kg/ M 3
Admixture : 0.7%
Fresh concrete density: 2430 Kg/ M 3
M25 ( 1 : 2.28 : 3.27)
Cement : 340 Kg/ M 3
20 mm Jelly : 667 Kg/ M 3
12.5 mm Jelly : 445 Kg/ M 3
River sand : 775 Kg/ M 3
Total water : 185 Kg/ M 3
Admixture : 0.6%
Fresh concrete density: 2414 Kg/ M 3
Note: sand 775 + 2%
moisture, Water185 -20.5 =
164 Liters,
Admixture = 0.5% is 100ml
M30 ( 1 : 2 : 2.87)
Cement : 380 Kg/ M 3
20 mm Jelly : 654 Kg/ M 3
12.5 mm Jelly : 436 Kg/ M 3
River sand : 760 Kg/ M 3
Total water : 187 Kg/ M 3
Admixture : 0.7%
Fresh concrete density: 2420 Kg/ M 3
Note: Sand = 760 Kg with 2% moisture
(170.80+15.20)
STANDARD CONVERSION FACTORS
INCH = 25.4 MILLIMETRE
FOOT = 0.3048 METRE
YARD = 0.9144 METRE
MILE = 1.6093 KILOMETER
ACRE = 0.4047 HECTARE
POUND = 0.4536 KILOGRAM
DEGREE FARENHEIT X 5/9 – 32 = DEGREE
CELSIUS
MILLIMETRE= 0.0394 INCH
METRE = 3.2808FOOT
METRE = 1.0936YARD
MATERIAL CALCULATION:
CEMENT IN BAGS..
01. PCC 1:5:10 1440/5*0.45 129.60Kg 2.59
02. PCC 1:4:8(M 7.5) 1440/4*0.45 162.00Kg 3.24
03. PCC 1:2:4(M 15) 1440/2*0.45 324.00Kg 6.48
04. PCC 1:3:6(M 10) 1440/3*0.45 216.00Kg 4.32
05. RCC 1:2:4(M 15) 144/2*0.45 324.00Kg 6.48
06. RCC 1:1.5:3(M 20) 1440/1.5*0.45 32.00Kg
8.64
07. RCC 1:1:2(M 25) 370.00Kg 7.40
08. RCC M 30 410.00Kg 8.20
09. RCC M35 445.00Kg 8.90
10. RCC M40 480.00Kg 9.60
11. Damp Proof Course
CM1:3,20mm tk 1440/3*0.022 10.56Kg 0.21
12. 2"tk precast slab M15 324*0.05 16.20Kg 0.32
13. 3"tk precast slab M15 324*0.075 24.30Kg
0.49
14. GC Masonry CM 1:7 1440/7*0.34 70.00Kg
1.40
15. Brick Work CM 1:6 1440/6*0.25 60.00Kg 1.20
16. Brick Work CM 1:4, 115tk 1440/
4*0.25*0.115
10.35Kg 0.21
17. Grano Flooring CC 1:1.5:3 1440/
1.5*0.45*0.05
21.60Kg 0.43
18. Plastering CM 1:3, 12mm tk 1440/3*0.014
6.72Kg 0.13
19. Wall Plastering CM 1:4,
12mm tk 1440/4*0.014 5.00Kg 0.10
20. Laying Pressed Tiles Over
a CM 1:4, 20mm tk 1440/4*0.022 7.92Kg 0.16
21. Ceramic Tiles, Marble,
Granite, Caddapah Slab
CM 1:4, 20mm tk 1440/4*0.022 7.92Kg 0.16
22. Hollow Block Masonry
CM 1:6, 200mm tk/m¬2¬ 10.00Kg 0.20
SAND CALCULATION (CFT):
01. Any Concrete Work
(PCC, RCC) 0.45*35.315= 20.00
02. Damp Proof Course
CM `1:3, 20mm tk 1.00
03. 2"tk Precast slab M15 1.00
04. 3"tk Precast slab M15 1.50
05. SS Masonry in CM 1:7 15.00
06. Brick Work in CM 1:6 15.00
07. Brick Work in CM 1:4,115mm tk 2.00
08. Grano Flooring in CC 1:1.5:3 1.00
09. Plastering in CM 1:3, 12mm tk 1.00
10. Wall Plastering CM 1:4, 12mm tk 1.00
11. Laying Pressed Tiles over a CM 1:4, 20mm tk
1.00
12. Ceramic Tiles, Marble, Granite, Cuddapah slab
CM 1:4, 20mm tk 1.00
METAL CALCULATION:
01. Any Concrete Work 32.00 cft
02. Grano Flooring in CC 1:1.5:3, 50mm tk 1.60
cft
03. Grano Flooring in CC 1:1.5:3, 75mm tk 2.40
cft
04. Grano Flooring in CC 1:1.5:3, 100mm tk 3.20
cft
05. Bricks/cum 450.00 Nos
06. Size Stone/ cum 90.00 Nos
07. Rough Stone 10.00 cft
08. Bond Stone/ cum 10.00 Nos
09. Cement Paint/100 Sft 2.00 Kg
10. White Cement/100 Sft 2.00 Kg
11. Janathacem/100 Sft 1.50 Kg
12. Enamel Paint/100 Sft - 2 Coats 1.25 Litre
13. Wall Putty/100 Sft 10.00 Kg
14. Plaster of Paris/100 Sft 25.00 Kg
15. Distember/100 Sft 2.00 Kg
16. Cement Primer 0.60 Litre
0.40 Litre
17. Weathering Course
Lime 12.50 Kg
Brick bats 32.00 Kg
18. Providing Sand Gravel Mix- Cum
Sand 20.00 Cft
Gravel 40.00 Cft
19.WBM - 75mm tk - 1st Layer - 10 Sqm
Metel(60-40 mm) 35.00 Cft
Gravel 10.00 Cft
20. Pressed Tiles - Sqm 20.00 Nos
21. Hollow Block - 200mm tk 14.00 Nos
CONVERSION TABLE:
01. 1 RM 3.28 Rft
02. 1 Sqm 10.76 Sft
03. 1 Cum 35.32 Cft
04. 1 Inch 2.54 cm
05. 1 sft 0.09Sqm
06. 1 Acre 0.04 Hectare
07. 1 Hectare 2.47 Acres
08. 1 Cft 0.028 Cum
09. 1 Feet 12.00 Inch
10. 1 Feet 0.305 M
11. 1 Cum 1000.00 Litre
UNIT WEIGHT:
01. Concrete 25 kN/m3
02. Brick 19 kN/m3
03. Steel 7850 Kg/m3
04. Water 1000 Lt/m3
05. Cement 1440 Kg/m3
06. 1Gallon 4.81 Litres
07. Link 8" = 200mm
08. 1 Hectare 2.471 acr(10000m2)
09. 1 Acr 4046.82m2 = 100 cent
DEVELOPMENT LENGTH:
01. Compression 38d
02. Tension 47 & 60d
03. 1 Cent 435.60 Sft
04. 1 Meter 3.2808 ft
05. 1 M2 10.76 ft2
06. 1 Feet 0.3048m
07. 1 KN 100Kg
08. 1kN 1000N
09. 1 Ton 1000Kg = 10,000 N = 10 kN
10. 1 kG 9.81N
M5=2.54Bg/m3, M7.5=3.18Bg/m3, M10=4.32Bg/
m3,
M20=8.64Bg/m3, M25=12.9 Bg/m3,
M40=500+100Kg/m3
1m3 Concrete = 0.9 m3 Jelly + 0.55 m3 Sand +
0.225 m3
BRICK:
Weight = 3.17 - 3.80 Kg
Water absorption 12 to 15%
Compressive strength = 36Kn/cm2
230mm Wall/m3 = 460 Bricks + 20Cft Sand +
66Kg Cement
Please circulate to civil Engr Grps.
CONCRETE GRADE :
M5 = 1:4:8
M10= 1:3:6
M15= 1:2:4
M20= 1:1.5:3
M25= 1:1:2
CLEAR COVER TO MAIN REINFORCEMENT:
1.FOOTINGS : 50 mm
2.RAFT FOUNDATION.TOP : 50 mm
3.RAFT FOUNDATION.BOTTOM/SIDES : 75 mm
4.STRAP BEAM : 50 mm
5.GRADE SLAB : 20 mm
6.COLUMN : 40 mm
7.SHEAR WALL : 25 mm
8.BEAMS : 25 mm
9.SLABS : 15 mm
10.FLAT SLAB : 20 mm
11.STAIRCASE : 15 mm
12.RET. WALL : 20/ 25 mm
on earth
13.WATER RETAINING STRUCTURES : 20/30 mm
WEIGHT OF ROD PER METER
LENGTH:
DIA WEIGHT PER METER
6mm = 0.222Kg
8mm = 0.395 Kg
10mm = 0.616 Kg
12mm = 0.888 Kg
16mm = 1.578 Kg
20mm = 2.466 Kg
25mm = 3.853 Kg
32mm = 6.313 Kg
40mm = 9.865 Kg
1bag cement-50kg
1feet-0.3048m
1m-3.28ft
1sq.m-10.76sq.f ¬t
1cu.m-35.28cu.f ¬t
1acre-43560sq.f ¬t
1cent-435.6sq.f ¬t
1hectare-2.47ac ¬re
1acre-100cent-4 ¬046.724sq.m
1ground-2400sq. ¬ft
1unit-100cu.ft- ¬2.83cu.m
1square-100sq.f ¬t
1 M LENGTH STEEL ROD I ITS VOLUME
V=(Pi/4)*Dia x DiaX
L=(3.14/4)x D x D X 1 (for
1m length) Density of Steel=7850 kg/ cub meter
Weight = Volume x Density=(3.14/4)x D x D X
1x7850 (if D is in mm ) So = ((3.14/4)x D x D X
1x7850)/(1000x1000) = Dodd/162.27
DESIGN MIX:
M10 ( 1 : 3.92 : 5.62)
Cement : 210 Kg/ M 3
20 mm Jelly : 708 Kg/ M 3
12.5 mm Jelly : 472 Kg/ M 3
River sand : 823 Kg/ M 3
Total water : 185 Kg/ M 3
Fresh concrete density: 2398 Kg/M 3
M20 ( 1 : 2.48 : 3.55)
Cement : 320 Kg/ M 3
20 mm Jelly : 683 Kg/ M 3
12.5 mm Jelly : 455 Kg/ M 3
River sand : 794 Kg/ M 3
Total water : 176 Kg/ M 3
Admixture : 0.7%
Fresh concrete density: 2430 Kg/ M 3
M25 ( 1 : 2.28 : 3.27)
Cement : 340 Kg/ M 3
20 mm Jelly : 667 Kg/ M 3
12.5 mm Jelly : 445 Kg/ M 3
River sand : 775 Kg/ M 3
Total water : 185 Kg/ M 3
Admixture : 0.6%
Fresh concrete density: 2414 Kg/ M 3
Note: sand 775 + 2% moisture,
Water185 -20.5 =
164 Liters,
Admixture = 0.5% is 100ml
M30 ( 1 : 2 : 2.87)
Cement : 380 Kg/ M 3
20 mm Jelly : 654 Kg/ M 3
12.5 mm Jelly : 436 Kg/ M 3
River sand : 760 Kg/ M 3
Total water : 187 Kg/ M 3
Admixture : 0.7%
Fresh concrete density: 2420 Kg/ M 3.
Note: Sand = 760 Kg with 2% moisture
(170.80+15.20)
STANDARD CONVERSION FACTORS
INCH = 25.4 MILLIMETRE
FOOT = 0.3048 METRE
YARD = 0.9144 METRE
MILE = 1.6093 KILOMETER
ACRE = 0.4047 HECTARE
POUND = 0.4536 KILOGRAM
DEGREE FARENHEIT X 5/9 – 32 = DEGREE
CELSIUS
MILLIMETRE= 0.0394 INCH
METRE = 3.2808FOOT
METRE = 1.0936YARD
MATERIAL CALCULATION:
CEMENT IN BAGS
01. PCC 1:5:10 1440/5*0.45 129.60Kg 2.59
02. PCC 1:4:8(M 7.5) 1440/4*0.45 162.00Kg 3.24
03. PCC 1:2:4(M 15) 1440/2*0.45 324.00Kg 6.48
04. PCC 1:3:6(M 10) 1440/3*0.45 216.00Kg 4.32
05. RCC 1:2:4(M 15) 144/2*0.45 324.00Kg 6.48
06. RCC 1:1.5:3(M 20) 1440/1.5*0.45 32.00Kg
8.64
07. RCC 1:1:2(M 25) 370.00Kg 7.40
08. RCC M 30 410.00Kg 8.20
09. RCC M35 445.00Kg 8.90
10. RCC M40 480.00Kg 9.60
11. Damp Proof Course
CM1:3,20mm tk 1440/3*0.022 10.56Kg 0.21
12. 2"tk precast slab M15 324*0.05 16.20Kg 0.32
13. 3"tk precast slab M15 324*0.075 24.30Kg
0.49
14. GC Masonry CM 1:7 1440/7*0.34 70.00Kg
1.40
15. Brick Work CM 1:6 1440/6*0.25 60.00Kg 1.20
16. Brick Work CM 1:4, 115tk 1440/
4*0.25*0.115
10.35Kg 0.21
17. Grano Flooring CC 1:1.5:3 1440/
1.5*0.45*0.05
21.60Kg 0.43
18. Plastering CM 1:3, 12mm tk 1440/3*0.014
6.72Kg 0.13
Bi
19. Wall Plastering CM 1:4,
12mm tk 1440/4*0.014 5.00Kg 0.10
20. Laying Pressed Tiles
a CM 1:4, 20mm tk 1440/4*0.022 7.92Kg 0.16
21. Ceramic Tiles, Marble,
Granite, Caddapah Slab
CM 1:4, 20mm tk 1440/4*0.022 7.92Kg 0.16
22. Hollow Block Masonry
CM 1:6, 200mm tk/m¬2¬ 10.00Kg 0.20
SAND CALCULATION (CFT):
01. Any Concrete Work
(PCC, RCC) 0.45*35.315= 20.00
02. Damp Proof Course
CM `1:3, 20mm tk 1.00
03. 2"tk Precast slab M15 1.00
04. 3"tk Precast slab M15 1.50
05. SS Masonry in CM 1:7 15.00
06. Brick Work in CM 1:6 15.00
07. Brick Work in CM 1:4,115mm tk 2.00
08. Grano Flooring in CC 1:1.5:3 1.00
09. Plastering in CM 1:3, 12mm tk 1.00
10. Wall Plastering CM 1:4, 12mm tk 1.00
11. Laying Pressed Tiles over a CM 1:4, 20mm tk
1.00
12. Ceramic Tiles, Marble, Granite, Cuddapah slab
CM 1:4, 20mm tk 1.00
METAL CALCULATION:
01. Any Concrete Work 32.00 cft
02. Grano Flooring in CC 1:1.5:3, 50mm tk 1.60
cft
03. Grano Flooring in CC 1:1.5:3, 75mm tk 2.40
cft
04. Grano Flooring in CC 1:1.5:3, 100mm tk 3.20
cft
05. Bricks/cum 450.00 Nos
06. Size Stone/ cum 90.00 Nos
07. Rough Stone 10.00 cft
08. Bond Stone/ cum 10.00 Nos
09. Cement Paint/100 Sft 2.00 Kg
10. White Cement/100 Sft 2.00 Kg
11. Janathacem/100 Sft 1.50 Kg
12. Enamel Paint/100 Sft - 2 Coats 1.25 Litre
13. Wall Putty/100 Sft 10.00 Kg
14. Plaster of Paris/100 Sft 25.00 Kg
15. Distember/100 Sft 2.00 Kg
16. Cement Primer 0.60 Litre
0.40 Litre
17. Weathering Course
Lime 12.50 Kg
Brick bats 32.00 Kg
18. Providing Sand Gravel Mix- Cum
Sand 20.00 Cft
Gravel 40.00 Cft
19.WBM - 75mm tk - 1st Layer - 10 Sqm
Metel(60-40 mm) 35.00 Cft
Gravel 10.00 Cft
20. Pressed Tiles - Sqm 20.00 Nos
21. Hollow Block - 200mm tk 14.00 Nos
CONVERSION TABLE:
01. 1 RM 3.28 Rft
02. 1 Sqm 10.76 Sft
03. 1 Cum 35.32 Cft
04. 1 Inch 2.54 cm
05. 1 sft 0.09Sqm
06. 1 Acre 0.04 Hectare
07. 1 Hectare 2.47 Acres
08. 1 Cft 0.028 ji Cum
09. 1 Feet 12.00 Inch
10. 1 Feet 0.305 M
11. 1 Cum 1000.00 Litre