Civil Engineering - Concrete Technology - Discussion

29. 

Higher workability of concrete is required if the structure is

[A]. made with cement concrete
[B]. thick and reinfored
[C]. thin and heavily reinforced
[D]. thick and heavily reinfored.

Answer: Option D

Explanation:

No answer description available for this question.

Piyush Singh said: (Sep 6, 2014)  
High workability is required when the structural member is thin and heavily reinforced.

Gaurav Javare said: (Feb 27, 2016)  
Why not option C?

Deepak said: (Sep 23, 2016)  
I think option C is the correct answers.

Harrry said: (Nov 9, 2016)  
I too think it is option C.

Avance said: (Dec 2, 2016)  
@All.

It's D only. The given answer is correct.

Ranjit said: (Feb 6, 2017)  
Yeah, D is the correct answer. Because in thin structure there may compaction is done by inserting the compaction needle from the surface but which can't be done in the case of the very thick structure.

Shanky said: (Jul 27, 2017)  
Yes, the correct answer is 'C'. I agree.

Bijender Singh Rana said: (Oct 6, 2017)  
Yes, D answer is correct, because if I can use vibration needle easily, then workability will be increased.

Kalyan Raman said: (Nov 9, 2017)  
In thin and heavily reinforced structures needle vibratore cannot be used hence workable concrete is required.

Balaji said: (Jan 16, 2018)  
I think option C is correct : When a section is narrow, complicated, several narrow corners, inaccessible parts; a highly workable concrete is desirable to obtain full compaction through a reasonable amount of effort. When the section is crowded with steel reinforcement and spacing of bars is relatively small, compaction can be difficult and hence highly workable concrete is recommended in such cases. If there are no limitations of the critical section or heavy reinforcement, we can get a wide range of workability for concrete casting.

Vidya said: (Feb 16, 2019)  
High workable concrete is used in thin and heavily Reinforced structures. Less workable is used in mass concreting. The primary reason for less workable concrete in mass concreting is to avoid thermal stress developed due to the large volume of the heat of hydration. So, OPTION C is correct.

Ahmad Khalil Pakistan said: (Jul 29, 2019)  
Option C is correct because it is not properly possible to do compaction of harsh concrete in thin and heavily reinforced section.

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