Question

Arrange the following Steps in ascending order of removal of shuttering:

a- Shuttering forming soffit of slab

b- Shuttering forming soffit of beam, girders

c- Shuttering forming the vertical faces of walls

d- Heavily loaded shuttering

1. a, b, c, d
2. d, c, b, a
3. c, d, b, a
4. c, a, b, d

Answer 1

Correct Answer - Option 4 : c, a, b, d

Concept:

Shuttering:

• Formwork or shuttering is a temporary mold-like arrangement of plates of different shapes, sizes, and materials used for the construction of different concrete elements like columns, beams, walls, culverts, etc.

Formwork Stripping Time (When Ordinary Portland Cement is used):

Type of Formwork	Formwork Removal Time
Sides of Walls, Columns and Vertical faces of the beam	24 hours to 48 hours (as per engineer’s decision)
Slabs (props left under)	3 days
Beam soffits (props left under)	7 days
Removal of Props of Slabs:
i) Slabs spanning up to 4.5m	14 days
ii) Slabs spanning over 4.5m	14 days
Removal of props for beams and arches
i) Span up to 6m	14 days
ii) Span over 6m	21 days

Hence, the ascending order of removal of shuttering is as follows:

First - Shuttering forming the vertical faces of walls 

Second - Shuttering forming soffit of slab

Third - Shuttering forming soffit of beam, girders

Fourth - Heavily loaded shuttering