Summary Civil Engineering Standard Data and Material Calculations – Complete Construction Reference Guide

CIVIL

ENGNEERING

STANDARD

DATAS

,Design Mix:
M10 ( 1 : 3.92 : 5.62)
Cement : 210 Kg/ M3
20 mm Jelly : 708 Kg/ M3
12.5 mm Jelly : 472 Kg/ M3
River sand : 823 Kg/ M3
Total water : 185 Kg/ M3
Fresh concrete density: 2398 Kg/M3

M20 ( 1 : 2.48 : 3.55)
Cement : 320 Kg/ M3
20 mm Jelly : 683 Kg/ M3
12.5 mm Jelly : 455 Kg/ M3
River sand : 794 Kg/ M3
Total water : 176 Kg/ M3
Admixture : 0.7%
Fresh concrete density: 2430 Kg/ M3

M25 ( 1 : 2.28 : 3.27)
Cement : 340 Kg/ M3
20 mm Jelly : 667 Kg/ M3
12.5 mm Jelly : 445 Kg/ M3
River sand : 775 Kg/ M3
Total water : 185 Kg/ M3
Admixture : 0.6%
Fresh concrete density: 2414 Kg/ M3
Note: sand 775 + 2% moisture, Water 185 -20.5 = 164 Liters,
Admixture = 0.5% is 100ml

M30 ( 1 : 2 : 2.87)
Cement : 380 Kg/ M3
20 mm Jelly : 654 Kg/ M3
12.5 mm Jelly : 436 Kg/ M3
River sand : 760 Kg/ M3
Total water : 187 Kg/ M3
Admixture : 0.7%
Fresh concrete density: 2420 Kg/ M3
Note: Sand = 760 Kg with 2% moisture (170.80+15.20)

M35 ( 1 : 1.79 : 2.57)
Cement : 410 Kg/ M3
20 mm Jelly : 632 Kg/ M3
12.5 mm Jelly : 421 Kg/ M3
River sand : 735 Kg/ M3
Total water : 200 Kg/ M3
Admixture : 0.7%
Fresh concrete density: 2400 Kg/ M3
Note: sand = 735 + 2%, Water = 200- 14.7 = 185.30,
Admixture = 0.7%

M40 ( 1 : 1.67 : 2.39)
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,Cement : 430 Kg/ M3
20 mm Jelly : 618 Kg/ M3
12.5 mm Jelly : 412 Kg/ M3
River sand : 718 Kg/ M3
Water Cement ratio : 0.43
Admixture : 0.7%
Note: Sand = 718 + Bulkage 1%

M45 ( 1 : 1.58 : 2.26)
Cement : 450 Kg/ M3
20 mm Jelly : 626 Kg/ M3
12.5 mm Jelly : 417 Kg/ M3
River sand : 727 Kg/ M3+ Bulkage 1%
Water Cement ratio : 0.43
Admixture : 0.7%

M50 ( 1 : 1.44 : 2.23)
Cement : 450 Kg/ M3
20 mm Jelly : 590 Kg/ M3
12.5 mm Jelly : 483 Kg/ M3
River sand : 689 Kg/ M3 + Bulkage 12%
Water Cement ratio : 0.36 (188 Kg)
Admixture : 1.20%3
Micro silica : 30 Kg
Super flow 6.7% of cement

WEIGHT OF MATERIALS

50 mm J bolt : 751 No’s / 52 Kg
40 mm J bolt : 883 No’s / 54 Kg
2” nails : 385 No’s / Kg
3” nails : 118 No’s / Kg
4" nails : 72 No’s / Kg
Binding wire : 170 rings /Kg

SIMPLEX FORMULA:-

U = (N /L) x {(W x H) / (1 + S)} x Sq.rt {(L/50)}

U = Ultimate load in tones
N = Number of blows
L = Pile length in feets
W = Weight of hammer in tones
H = Height of fall in feet.
S = Set for 1 blows in Inch

Safe load = (ultimate load/ 2.5)
Factor of safety = 2.5
10 blows = below 10 MM

Thread couplers:- (For Column lapping)
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, Couplers for reinforcing bars 20 mm to 28 mm crimped sleeve

Slump IS 456

Lightly reinforced 25 – 75 mm
Heavily reinforced 75 – 100 mm
Trench fill (insitu & Tremie) 100 – 150 mm
(For Termie vibrator not required)

Durability:-

 The Environment
 Cover to Steel
 Type and quality of the constituent material
 Cement content and Water Cement ratio.
 Workmanship to obtain full compaction.
 Compaction and efficient curing.

Accuracy of measuring equipment in batching plant.

Cement : + 2%
Aggregate : + 3%
Admixture : + 3%
Water : + 3%
Mixing time : 2 minutes for one mixing.(site Mixing)

TOLERANCE:-
Form work:-

In C/S for columns & Beams deviation is = + 12mm more (or) - 6mm less in size
In footing plan = + 50 mm more (or) – 12 mm less size
In depth = + 0.05 D (specified thickness).
Reinforcement:-

For effective depth D < 200mm = + 10mm
For effective depth D > 200mm = + 15mm
For Cover to reinforcement = + 10mm
Maximum freefall of concrete = 1.50 m height.


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