Civil Engineering - Concrete Technology - Discussion

5. 

Ordinary concrete is not used for concrete grade

[A]. M 100
[B]. M 150
[C]. M 200
[D]. M 250
[E]. M 400

Answer: Option E

Explanation:

No answer description available for this question.

Danesh said: (Jun 18, 2014)  
M 400 is used for Pre-tensioned prestressed concrete works.

Sitaramireddy said: (Aug 25, 2014)  
M 400 is used for Pre-tensioned prestressed concrete works.

Prasanta Naskar said: (Nov 17, 2014)  
Ordinary Concrete means where the testing of concrete not taken and For M 100 to M 250 grade of concrete can be used without testing.

So M 400 is not used in Ordinary Concrete, it will be used for Controlled Concrete.

Sam said: (Dec 16, 2014)  
M 40 or M 400 used for pretension.

Sainath said: (Jul 27, 2016)  
Please explain this.

N.M.A said: (Jan 25, 2017)  
M10 to 20 - Ordinary concrete mix.
M25 to M55 - Standard concrete mix.
M60 to M60 - high strength concrete mix.

Hira Lal said: (Sep 7, 2018)  
Above M35 are used in pretensioning work.

Viswaramateja said: (Mar 7, 2019)  
Is it M40?

Azeem said: (May 22, 2019)  
Thanks all for explaining.

Santosh said: (Jul 17, 2019)  
M40 pre-tensioning stress concrete block and M30 post-tensioning.

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