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After how much time the formwork is usually removed once the walls, columns, and vertical faces of all structural parts have been built?

After how much time the formwork is usually removed once the walls, columns, and vertical faces of all structural parts have been built? Correct Answer 24 to 48 hours

Concept:

As per IS 456 2000, minimum period before striking formwork for various components are as follows-

Type of Formwork Minimum Period
Before Striking
Formwork
Vertical formwork to columns,
walls, beams		 16-24 h
Soffit formwork to slabs
(Props to be re-fixed
immediately after removal
of formwork)		 3 days
Soffit formwork to beams
(Props to be re-fixed
immediately after removal
of formwork)		 7 days
Props to slabs:1) Spanning up to 4.5 m
2) Spanning over 4.5 m

7 days

14 days
Props to beams and arches: 1) Spanning up to 6 m
2) Spanning over 6 m

14 days

21 days

 

Formwork is usually removed after 24 to 48 hours once the walls, columns, and vertical faces of all structural parts have been built.

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