Basics Of Civil Engineering

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■ 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.WATER RETAINING STRUCTURES: 20/30 mm

■ Time required For Formwork Removal:

Columns: 24 hrs

Beams upto 6m: 14 days

Beams above 6m: 21 days

Slabs upto 4.5m: 7 days



Slabs above 4.5m: 14 days

Comments

  1. NAV NIRMAN FORMWORK SYSTEMS PVT LTDSeptember 30, 2020 at 5:47 AM

    Thanks for sharing the best information and suggestions, If you are looking for the best Column Formwork, then NAV NIRMAN FORMWORK SYSTEMS PVT LTD. Highly energetic blog, I’d love to find out some additional information.

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