Civil Engineering - Building Construction - Discussion

Discussion Forum : Building Construction - Section 1 (Q.No. 47)
The form work from the underside of slabs, can be removed only after
1 day
4 days
7 days
14 days.
Answer: Option
No answer description is available. Let's discuss.
11 comments Page 1 of 2.

Sneha Mathai said:   3 years ago
As per IS 456: 2000 clause 11.3,
* The formwork from the underside/soffit of the slab is removed after 3 days.
* For slabs spanning up to 4.5 m, their props can be removed after 7 days.
* For slabs spanning over 4.5 m, their props can be removed after 14 days.

So, the answer should be 3 days.

Muhammad Farhan Malik said:   3 years ago
For 4.5m 7 days and for more than 4.5m 14 days.

Sagar Bahule said:   5 years ago
It depends upon the span length of the slab as the span of the slab is,

1) Less than the 5 m =07 days of curing.
2) Exceeding 5 m=14 days of curing.

Sunil thorat said:   6 years ago
Depend on slab span - 7, 14, 21 days.

Please refer IS code.

Roy said:   7 years ago
With props or without props?

Because without props it is 3 days. And with props, if span up to 4.5 m it is 7 days and greater than 4.5 m it is 14 days.

Naufal Haniffa said:   8 years ago
Generally after 21-28 days that it reaches the 100% strength; otherwise based strength test report.

Muhammed D. Rasheed said:   8 years ago
Its depend on a length of span with the a notice of tempreture?

Santanu tripathy said:   8 years ago
There are no mention clear span so we take 7 days.

Zeeshan said:   8 years ago
Why not 14 days?

Murugan said:   10 years ago
We have to check the clear span length ?

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