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.

Binosh said:   9 years ago
Prestressing losses in post-tensioned and pre-tensioned beams are respectively.

A) 15% and 20%
b) 20% and 15%
C) 15% and 15%
d) 20% and 20%.

Please tell me the answer.
(3)

Akshay said:   9 years ago
@Binosh.

It is (a). In post, tension losses are less.

Pawan yadav said:   8 years ago
Min grade of pre-tension m40.

Min grade of post-tension m35.

Makar said:   8 years ago
This option is correct min grade 35.

Debojyoti said:   8 years ago
I think E is the correct answer.

BHASKAR MANNA said:   8 years ago
It is not clear from the question whether the prestressed concrete is pre-tension or post-tension.

If pre-tension = 40 N/mm2.

Post-tension = 35 N/mm2.

Puni said:   8 years ago
Pre-tension = 40 N/mm2.
Post-tension = 30 N/mm2.

Krishna said:   8 years ago
Minimum grade for pre-tension - M40.

Minimum grade for post-tension - M35.

Yogesh said:   8 years ago
What is maximum grade can be used?

Paddy said:   8 years ago
Pre Tension = M40.

Post Tension = M30.


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