Civil Engineering - Concrete Technology - Discussion

31. 

For the construction of cement concrete floor, the maximum permissible size of aggregate, is

[A]. 4 mm
[B]. 6 mm
[C]. 8 mm
[D]. 10 mm
[E]. 12 mm

Answer: Option D

Explanation:

No answer description available for this question.

Balu said: (Jun 11, 2014)  
Depend upon the floor thickness & type of finish.

Danesh said: (Jun 18, 2014)  
40 mm for massive works like dams, retaining walls, etc.
20 mm for Reinforced member.
10 mm for floors.

Rohit Rajak said: (Sep 7, 2014)  
40 mm for massive works like dams, retaining walls, etc.
20 mm for Reinforced member.
10 mm for floor.

Neha said: (Sep 27, 2014)  
What is the reason?

Nirav Bhatt said: (May 22, 2015)  
To reduce or increase the surface are and to adjust the spacing.

Again as said earlier, it depends on reinforcement and usage.

Sujeet said: (Apr 12, 2016)  
10mm for floor.
20mm for reinforcement.
40mm for massive construction.

Raja Maitra said: (Aug 8, 2016)  
What do you mean by adjust spacing?

Bapureddy said: (Aug 8, 2016)  
How it is? Explain me.

Roopa said: (Feb 17, 2017)  
What is the min size of aggregate used for different type of constructions?

Nitin said: (Apr 26, 2017)  
40MM agg get up to 200kg/cm2 strength.
20MM agg get up to 300kg/cm2 strength in construction.

Mocha said: (May 23, 2017)  
20mm is not enough for reinforcement 18mm is enough for it.

Waqar Ahmed said: (Dec 19, 2017)  
It depends upon the thickness of floor and purpose for which floor is to be designed.

Generally, in case of massive construction such as dam we use 40mm aggregate size.

For floor and in case of reinforced member we use the 20mm size of aggregate similarly for normal floor aggregate size should be 10mm.

Sridharreddyputta said: (Sep 6, 2018)  
It is 20mm.

Kalpana said: (Aug 15, 2019)  
Whst is the reason behind it? Please explain.

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