Concrete Technology and Design of Concrete Structures
According to IS : 456-1978, the fiexural strength of concrete is

directly proportional to compressive strength
directly proportional to square root of compressive strength
inversely proportional to square root of compressive strength
inversely proportional to compressive strength

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Concrete Technology and Design of Concrete Structures
Select the incorrect statement...

The loss of prestress is more in pre-tensioning system than in post-tensioning system.
None of these
Pretensioning system has greater certainty about its durability.
For heavy loads and large spans in buildings or bridges, post-tensioning system is cheaper than pretensioning system

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