Civil Engineering - RCC Structures Design - Discussion

Discussion Forum : RCC Structures Design - Section 1 (Q.No. 25)
25.
The minimum cube strength of concrete used for a prestressed member, is
50 kg/cm2
150 kg/cm2
250 kg/cm2
350 kg/cm2
400 kg/cm2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
37 comments Page 2 of 4.

Mantu said:   7 years ago
Prestressed - minimum 35& maximum -40grade of concrete is used.
So, 35N/mm^2 or 350kg/cm^2 is correct.

PRASHANT said:   7 years ago
Here question is prestresses concrete not pre or pro-tension so, option 4 is right.

Aushutosh said:   7 years ago
The Average of pre & post is taken here.

Viru Kapoor said:   7 years ago
Concrete grade used for post tension M30.

Pretensioning M40.

Ratandeep said:   6 years ago
@Binosh.

The answer is A.

Tanmoy karmakar said:   6 years ago
For Post Tension Minimum Grade M30 and For Pre Tension Minimum Grade M40.

So the Answer is 300 kg/cm square.

Asad said:   5 years ago
Right, thanks @Puni.

M.K.AJAY said:   5 years ago
@Binosh.

The answer is A.

Post-tensioning loss is less than pre-tensioning loss.

Mohsin said:   4 years ago
The Loss of prestress in the post-tensioning system is approx.

Suriya said:   9 years ago
Pre-tensioned and post-tension is the type of prestress beam.

So, the minimum concrete grade is option D = 350 kg/cm2.


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