Question

4. Why high grade concrete is used in pre-
stressed concrete?
controlling the pre-stress loss​

Answer 1

Explanation:

High strength concrete is necessary for prestress concrete as the material offers highly resistance in tension, shear bond and bearing. ... High strength concrete is less liable to shrinkage cracks and has lighter modulus of elasticity and smaller ultimate creep strain resulting in a smaller loss of prestress in steel.

Answer 2

Answer:

High strength concrete is less liable to shrinkage cracks and has lighter modulus of elasticity and smaller ultimate creep strain resulting in a smaller loss of prestress in steel.

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