Civil Engineering - Concrete Technology - Discussion

32. 

The shuttering of a hall measuring 4 m x 5 m, can be removed after

[A]. 5 days
[B]. 7 days
[C]. 10 days
[D]. 14 days
[E]. 21 days

Answer: Option B

Explanation:

No answer description available for this question.

Datta said: (Mar 5, 2015)  
7 days for beam soffits.

14 days for slab of span 4.6m & more.

21 days for bottom beam over 6m span.

Darshan said: (Jul 5, 2016)  
7 days for beam formwork. 7days for removing props of a slab of span 4.6m below and above 4.6 m is 14 days.
Similarly for a span of 6 m below for beam is 14 days and above 6 m for props removal of the beam is 21 days.

Siddhant said: (Jan 14, 2017)  
I think it should be 14 days.

Oussama Sahnoune said: (Jun 19, 2017)  
2l + 2 = 4 * 2 + 2 = 10.

I think 10 days.

Akshay Patidar said: (Jun 7, 2018)  
It gives length and breadth that means clearly talking about slab. So, the correct answer is 7days (According to RCC code).

Sagar Rathor said: (Sep 16, 2019)  
According to IS code 456.

Props to the slab.

1) Spanning up to 4.5m --> 7days.
2) Spanning over 4.5m --> 14 days.
So for the longer span of 4m * 5m slab --> 14 days.

Subrat Kumar Nahak said: (Nov 27, 2019)  
yes the ans should be 14 days...as per the data was mentioned in IS code...

Abbas Khan said: (Sep 2, 2021)  
(4+5)/2 = 4.5

So, the span is not over from 4.5. That's why option B is the correct option.

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