Answer / engineer m.aziz

first of all We should conseder in our colculation the
ratio of cement,Sand , aggregate and water cement ratio
which we have received from mix design test

Answer / kunal

how to calculate FA & CA in KG...? pls Give me ans i dont know...

Answer / rahul mehta (g.m. projects)

M30 design..Cement:1/4*1.54=.385*28.8=11bags per cuM,Sand:.385*1=.385cuM,because dry density 1.54=wet density 1.54 in concrete work

Answer / pramesh

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)
M35 ( 1 : 1.79 : 2.57)
Cement : 410 Kg/ M 3
20 mm Jelly : 632 Kg/ M 3
12.5 mm Jelly : 421 Kg/ M 3
River sand : 735 Kg/ M 3
Total water : 200 Kg/ M 3
Admixture : 0.7%
Fresh concrete density: 2400 Kg/ M 3
Note: sand = 735 + 2%, Water = 200- 14.7 =
185.30,
Admixture = 0.7%
M40 ( 1 : 1.67 : 2.39)
Cement : 430 Kg/ M 3
20 mm Jelly : 618 Kg/ M 3
12.5 mm Jelly : 412 Kg/ M 3
River sand : 718 Kg/ M 3
Water Cement ratio : 0.43
Admixture : 0.7%
Note: Sand = 718 + Bulk age 1%
M45 ( 1 : 1.58 : 2.26)
Cement : 450 Kg/ M 3
20 mm Jelly : 626 Kg/ M 3
12.5 mm Jelly : 417 Kg/ M 3
River sand : 727 Kg/ M 3 + Bulk age 1%
Water Cement ratio : 0.43
Admixture : 0.7%
M50 ( 1 : 1.44 : 2.23)
Cement : 450 Kg/ M 3
20 mm Jelly : 590 Kg/ M 3
12.5 mm Jelly : 483 Kg/ M 3
River sand : 689 Kg/ M 3 + Bulk age 12%
Water Cement ratio : 0.36 (188 Kg)
Admixture : 1.20%3
Micro silica : 30 Kg
Super flow 6.7% of cement
1 cubic meter contains 500 bricks
The Standard size of the 1st class brick is 190mm
x 90mm x
90mm and motor joint should be 10mm thick
So brick with motor=200 x 100 x 100.
Volume of 1st class brick = 0.19 x 0.09 X 0.09 =
0.001539
cu.m
Volume of 1st class brick with motor =0.2 x 0.1 x
0.1=0.002
cu.m
No. on bricks per 1cu.m= 1/volume of1st class
brick with
motor
=1/0.002
= 500 no’s of bricks
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
A rope having length 100cm.You can form any
shape using this rope (Example: Triangle,
Rectangle, etc.,). Which shape will covers
maximum area
1 Newton = o.101971 kg
1 mm2 = 0.01 cm2
1 cm2 = 100 mm2
1 mm2 = 20 N
100 mm2 = 2000N
1 cm2 = 2000N
2000 N = 203.942 kg
So 20 N/ mm2 = 203.942 kg / cm2
RATIO IS 1:1.5:3
then volume is 1+1.5+3=5.5 and the total volume
for using mix=1.57 m3 then cement required=1/
5.5*1.57=0.285m3*1440=411 kg. (8+bag)
sandrequried=1.5/5.5*1.57=0.471m3
aggregaterequired=3/5.5*1.57=0.853m3
the standard volume of dry mix mortar=1.57.. U
can check it in IS code also. Then volume is
1+1.5+3=5.5 and the total volume for using
mix=1.57 m3 then cement required=1/
5.5*1.57=0.285m3*1440=411 kg.(8+bag)
sandrequried=1.5/5.5*1.57=0.471m3
aggregaterequired=3/5.5*1.57=0.853m3
the standard volume of dry mix mortar=1.57.. U
can check it in IS code also.
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 Conrete = 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
SSM 1:7/m3 = Slize 95 + Soiling 8 Cft +60.5 Kg
Current = 1000 Watts = 1 Unit, 25Watt*40Hr = 1
Unit
Sunshade = 65mm - 0.56 bag/m2,
= 90mm - 0.78 bag/m2
Tiles, Kotta, Marble - 0.33 bag/m2
Press Tiles - 0.22 bag/m2
Ceilling & RCC plasreting 1:3 - 0.13 bag/m2
Wall 1:5 - 0.09 bag/m2
Smoothplast 1:3 - 0.18 bag/m2,
Brick on edge - 0.08/Rmt
Pavement 75 tk - 0.49/m2
Floorfinish CM 1:4 - 0.15bag/m2
EFFECTIVE COVER:
Footing = 50mm, Column = 40mm, Slab = 20mm,
Beam = 25mm
NitoFloorHarder = 3 Kg/m2, Fibre Mash - 0.9 Kg/
m3
REINFORCEMENT STEEL FOR CONCRETE ITEM -
Kg/m3:
Column = 125, Footing = 75, Slab = 65, Beam =
120
RC Wall = 80, Min.Plot Area req for Approval =
95m2
FABRICATION STEEL (TRUSS+PULIN):
20-30m span 1m2 = 25 Kg,
40m & above 1m2 = 33 kg
UG Sump = 12 Kl(3*2*2m)
= 24 Kl(4*2.5*2.5m)
Column Lead for Resi - 2.0T/m2 per Floor
FSI:
Resi - 17m2/250m2
Shop - 17m2/200m2
Min.Width - 6m 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)
M35 ( 1 : 1.79 : 2.57)
Cement : 410 Kg/ M 3
20 mm Jelly : 632 Kg/ M 3
12.5 mm Jelly : 421 Kg/ M 3
River sand : 735 Kg/ M 3
Total water : 200 Kg/ M 3
Admixture : 0.7%
Fresh concrete density: 2400 Kg/ M 3
Note: sand = 735 + 2%, Water = 200- 14.7 =
185.30,
Admixture = 0.7%
M40 ( 1 : 1.67 : 2.39)
Cement : 430 Kg/ M 3
20 mm Jelly : 618 Kg/ M 3
12.5 mm Jelly : 412 Kg/ M 3
River sand : 718 Kg/ M 3
Water Cement ratio : 0.43
Admixture : 0.7%
Note: Sand = 718 + Bulk age 1%
M45 ( 1 : 1.58 : 2.26)
Cement : 450 Kg/ M 3
20 mm Jelly : 626 Kg/ M 3
12.5 mm Jelly : 417 Kg/ M 3
River sand : 727 Kg/ M 3 + Bulk age 1%
Water Cement ratio : 0.43
Admixture : 0.7%
M50 ( 1 : 1.44 : 2.23)
Cement : 450 Kg/ M 3
20 mm Jelly : 590 Kg/ M 3
12.5 mm Jelly : 483 Kg/ M 3
River sand : 689 Kg/ M 3 + Bulk age 12%
Water Cement ratio : 0.36 (188 Kg)
Admixture : 1.20%3
Micro silica : 30 Kg
Super flow 6.7% of cement
1 cubic meter contains 500 bricks
The Standard size of the 1st class brick is 190mm
x 90mm x
90mm and motor joint should be 10mm thick
So brick with motor=200 x 100 x 100.
Volume of 1st class brick = 0.19 x 0.09 X 0.09 =
0.001539
cu.m
Volume of 1st class brick with motor =0.2 x 0.1 x
0.1=0.002
cu.m
No. on bricks per 1cu.m= 1/volume of1st class
brick with
motor
=1/0.002
= 500 no’s of bricks
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
A rope having length 100cm.You can form any
shape using this rope (Example: Triangle,
Rectangle, etc.,). Which shape will covers
maximum area
1 Newton = o.101971 kg
1 mm2 = 0.01 cm2
1 cm2 = 100 mm2
1 mm2 = 20 N
100 mm2 = 2000N
1 cm2 = 2000N
2000 N = 203.942 kg
So 20 N/ mm2 = 203.942 kg / cm2
RATIO IS 1:1.5:3
then volume is 1+1.5+3=5.5 and the total volume
for using mix=1.57 m3 then cement required=1/
5.5*1.57=0.285m3*1440=411 kg. (8+bag)
sandrequried=1.5/5.5*1.57=0.471m3
aggregaterequired=3/5.5*1.57=0.853m3
the standard volume of dry mix mortar=1.57.. U
can check it in IS code also. Then volume is
1+1.5+3=5.5 and the total volume for using
mix=1.57 m3 then cement required=1/
5.5*1.57=0.285m3*1440=411 kg.(8+bag)
sandrequried=1.5/5.5*1.57=0.471m3
aggregaterequired=3/5.5*1.57=0.853m3
the standard volume of dry mix mortar=1.57.. U
can check it in IS code also.
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 Conrete = 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
SSM 1:7/m3 = Slize 95 + Soiling 8 Cft +60.5 Kg
Current = 1000 Watts = 1 Unit, 25Watt*40Hr = 1
Unit
Sunshade = 65mm - 0.56 bag/m2,
= 90mm - 0.78 bag/m2
Tiles, Kotta, Marble - 0.33 bag/m2
Press Tiles - 0.22 bag/m2
Ceilling & RCC plasreting 1:3 - 0.13 bag/m2
Wall 1:5 - 0.09 bag/m2
Smoothplast 1:3 - 0.18 bag/m2,
Brick on edge - 0.08/Rmt
Pavement 75 tk - 0.49/m2
Floorfinish CM 1:4 - 0.15bag/m2
EFFECTIVE COVER:
Footing = 50mm, Column = 40mm, Slab = 20mm,
Beam = 25mm
NitoFloorHarder = 3 Kg/m2, Fibre Mash - 0.9 Kg/
m3
REINFORCEMENT STEEL FOR CONCRETE ITEM -
Kg/m3:
Column = 125, Footing = 75, Slab = 65, Beam =
120
RC Wall = 80, Min.Plot Area req for Approval =
95m2
FABRICATION STEEL (TRUSS+PULIN):
20-30m span 1m2 = 25 Kg,
40m & above 1m2 = 33 kg
UG Sump = 12 Kl(3*2*2m)
= 24 Kl(4*2.5*2.5m)
Column Lead for Resi - 2.0T/m2 per Floor
FSI:
Resi - 17m2/250m2
Shop - 17m2/200m2
Min.Width - 6m
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Answer / prakash pandiyan

for designing 1m3 concrete of M25 mix the ratio is 1:1:2
for calculating cement,sand and course aggregate ,
for 1m3 add 50% for shrinkage and wastage so 1.5m3
1.5m3/(1+1+2)=.375
density of cement =1440kg/m3=says 1440/50=28.8bags
cement required for this mix=.375*28.8=10.8bags
sand=.375*1=.375m3
course aggregate=.375*2=.75m3
FINALLY WE SAY 10.8 BAGS/M3

Answer / misal dinesh

Take The Ratio - 1:1.5:3
For 1 cu.m wet volume consider its dry volume 54% more
i.e = 1.54 cu.m of concrete.
Total Volume of concrete for Mix= 1.54/1+1.5+3 = 0.28 cu.m
Total quantity of cement for Mix= 0.28/1 = 0.28 cu.m
Total quantity of cement in bags= 0.28/0.035 = 8 bags
Total quantity of Metal for Mix= 0.28/1.5 = 0.187 cu.m
Total quantity of sand for Mix= 0.28/3 = 0.093 cu.m

Answer / akheel

plz explain this

Answer / amaresh jamadar

As per my observations ,the end concrete or dry concrete should be,
Total weight of cc=2300 kg/ cu.M
Ratio m-20=1:1.5:3
So weight of cement=2306/(1 1.5 3)=2306/5.5=418 kgs or 8.36 bags
Weight of sand=418*1.5=627 kgs or .392 cu.M
Weight of ca= 418*3=1254 kgs or 0.76 cu.
M
Correct me if am wrong.

Answer / aryan

Sorry for that
Why I am using volume of dry wet concrete 1.54 to 1.57
Or
How we know the volume of dry wet concrete

Answer / tukuna das

M30 means , proportion 1:1:2 , so that

Total Volume = 1m3
we take 52% extra for dry volume , miss handling etc then ,
total volume = 1* 1.52 = 1.52 m3
Quantity of cement required = 1.52/(1+1+2)=0.38/0.035= 10.857bags = 11 bags
Quantity of sand required = 0.38*1=0.38m3
Quantity of aggregate required = 0.38*2 = 0.76m3

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Respected Sir, I am from a hilly place called Darjeeling ,I have constructed house of 9 column out of which 4 of the column is under water , i have put rcc slab on top and on top of the rcc slab i have construced two room house with bricks and light roof , now i am planning to change the light roof with rcc slab for the two room, my main concern is will the column under water will hold the load of the new rcc slab coz it already 10 to 12 yrs old , i dont know what to do , can u advice me regarding this matter, weather to leave the upper floor roof light or make it rcc slab.(If i put the slab , it will require 45bags of cement and u calculate how much of steel and sand and pebbles) thanks with regard Anand

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