30/07/2025
Site Engineer Dairy
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
Unit Conversions:
1feet-0.3048m
1m-3.28ft
1sq.m-10.76sq.ft
1cu.m-35.28cu.ft
1acre-43560sq.ft
1cent-435.6sq.ft
1hectare-2.47acre
1acre-100cent-4046.724sq.m
1ground-2400sq.ft
1unit-100cu.ft-2.83 cu.m 1 square-100sq.ft
1M Length Steel Rod its Volume :
V=(Pi/4)*Dia x Dia X L=(3.14/4)x D x D X 1 (for1m length) Density of Steel=7850 kg/ cub meter
Weight =
Volume x Density=
(3.14/4)x D x D X1x7850 (if D is in mm ) So = ((3.14/4)x D x D X1x7850)/(1000x1000) = Dodd/162.27
Design Mix M10 :
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
Design Mix M20 :
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
Design Mix M25 :
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 Litres, Admixture = 0.5% is 100ml
Design Mix M30 :
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)
Design Mix M35 :
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%
Design Mix M40 :
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%
Design Mix M45 :
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%
Design Mix M50 :
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
Bricks:
1 cubic meter contains 500 bricksThe Standard size of the 1st class brick is 190mmx 90mm x90mm and motor joint should be 10mm thickSo brick with motor=200 x 100 x 100.Volume of
1st class brick = 0.19 x 0.09 X 0.09 =0.001539cu.m
Volume of 1st class brick with motor =0.2 x 0.1 x0.1=0.002cu.mNo. on bricks per 1cu.m= 1/volume of1st class brick with motor=1/0.002=500 noтАЩs of bricks
Standard Conversion Factors :
INCH = 25.4 MILLIMETRE
FOOT = 0.3048 METRE
YARD = 0.9144 METRE
MILE = 1.6093 KILO-METER
ACRE = 0.4047HECTARE
POUND = 0.4536 KILOGRAM
DEGREE FARENHEIT X 5/9 тАУ 32 = DEGREE CELSIUS MILLIMETRE= 0.0394
INCHMETRE = 3.2808
FOOTMETRE = 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 N100 mm2 = 2000N
1 cm2 = 2000N2000 N = 203.942 kgSo 20 N/ mm2 = 203.942 kg / cm2
Ratio As per 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)
sand requried=1.5/5.5*1.57=0.471m3 aggregate required=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 is1+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)sand required=1.5/5.5*1.57=0.471m3aggregate required=3/5.5*1.57=0.853m3the standard volume of dry mix mortar=1.57.. U can check it in IS code
Material Calculation : Cement in Bags :
BAGS01. PCC 1:5:10 1440/5*0.45 129.60Kg 2.5902.
PCC 1:4:8(M 7.5) 1440/4*0.45 162.00Kg 3.2403.
PCC 1:2:4(M 15) 1440/2*0.45 324.00Kg 6.4804.
PCC 1:3:6(M 10) 1440/3*0.45 216.00Kg 4.3205
RCC 1:2:4(M 15) 144/2*0.45 324.00Kg 6.4806.
RCC 1:1.5:3(M 20) 1440/1.5*0.45 32.00Kg8.6407.
RCC 1:1:2(M 25) 370.00Kg 7.4008.
RCC M 30 410.00Kg 8.2009.
RCC M35 445.00Kg 8.9010.
RCC M40 480.00Kg 9.6011.
Damp Proof CourseCM1:3,20mm tk 1440/3*0.022 10.56Kg 0.2112. 2"tk precast slab
M15 324*0.05 16.20Kg 0.3213. 3"tk precast slab
M15 324*0.075 24.30Kg0.4914.
GC Masonry CM 1:7 1440/7*0.34 70.00Kg1.4015.
Brick Work CM 1:6 1440/6*0.25 60.00Kg 1.2016.
Brick Work CM 1:4, 115tk 1440/4*0.25*0.11510.35Kg 0.2117.
Grano Flooring CC 1:1.5:3 1440/1.5*0.45*0.0521.60Kg 0.4318.
Plastering CM 1:3, 12mm tk 1440/3*0.0146.72Kg 0.1319.
Wall Plastering CM 1:4,12mm tk 1440/4*0.014 5.00Kg 0.1020.
Laying Pressed Tiles Over CM 1:4, 20mm tk 1440/4*0.022 7.92Kg 0.1621.
Ceramic Tiles, Marble,Granite, Caddapah SlabCM 1:4, 20mm tk 1440/4*0.022 7.92Kg 0.1622.
Hollow Block MasonryCM 1:6, 200mm tk/m┬м2┬м 10.00Kg 0.20
Sand Calculation in CFT :
01. Any Concrete Work(PCC, RCC) 0.45*35.315= 20.00
02. Damp Proof CourseCM `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 tk1.00
12. Ceramic Tiles, Marble, Granite, Cuddapah slab CM 1:4, 20mm tk 1.00
01. Any Concrete Work 32.00 cft
02. Grano Flooring in CC 1:1.5:3, 50mm tk 1.60cft
03. Grano Flooring in CC 1:1.5:3, 75mm tk 2.40cft
04. Grano Flooring in CC 1:1.5:3, 100mm tk 3.20cft
05. Bricks/cum 450.00 Nos
06. Size Stone/ cm 90.00 Nos
07. Rough Stone 10.00 cft
08. Bond Stone/ cm 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. Distemper/100 Sft 2.00 Kg
16. Cement Primer 0.60 Litre0.40 Litre
17. Weathering CourseLime 12.50 KgBrick bats 32.00 Kg
18. Providing Sand Gravel Mix- CumSand 20.00 CftGravel 40.00Cft
19.WBM - 75mm tk - 1st Layer - 10 Sqm Metel(60-40 mm)35.00Cft 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
Cement Consumption:
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
Brick:
Water absorption 12 to 15%
Compressive strength = 36Kn/cm2
230mm Wall/m3 = 460 Bricks + 20Cft Sand +66Kg CementSSM 1:7/m3 = Slize 95 + Soiling 8 Cft +60.5 KgCurrent = 1000 Watts = 1 Unit,
