Civil Engineering - RCC Structures Design - Discussion

Discussion Forum : RCC Structures Design - Section 1 (Q.No. 13)
13.
For M 150 mix concrete, according to I.S. specifications, local bond stress, is
5 kg/cm2
10 kg/cm2
15 kg/cm2
20 kg/cm2
25 kg/cm2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
40 comments Page 2 of 4.

Ranjan kumar said:   7 years ago
M15 = 1 N/mm2.
(2)

Amit ANAND said:   7 years ago
10n/mm2 is correct I think.

Susanta sarkar said:   7 years ago
2/3 of local bond stress.

Sachin Singh said:   7 years ago
150 N/mm^2 (given).
i.e. 15 kg/cm^2,
= 2/3 * 15 = 10kg/cm^2.

ANAND said:   7 years ago
150 kg/cm2 that means 15N/mm2. IS 456 -1978 given M15 grade of concrete design bond strength is 1 N/mm2 means of 10kg/cm2.

Angad. said:   7 years ago
M150 means 150 n/mm2 so 15 kg/cm2 .

Then you can so 2/3 *15 = 10 kg/cm2.

Abhishek said:   8 years ago
As per IS 456 Table 21 for WSM.

Permissible bond stress for M15 is 0.6 N/mm^2.

SOUMEN DAS said:   8 years ago
It is for M15 not M150.

SOUMEN Das said:   8 years ago
The diff between the grade of concrete is 5 and design bond stress diff is 0.2 so for M15 grade the design bond stress is 1 N/mm2.

Means 10 kg/cm2.

Vicky said:   8 years ago
M10 1.0N/mm2 m20 1.2N/MM2 M25 1.4N/MM2 M30 1.5N/MM2 M35 1.7N/MM2 M40 and above 1.9N/MM2 and this is only for plain bar.
(1)


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