In pre-stressed concrete, high-grade concrete is used for -
Having Low creep
Of the options provided, "Having Low creep" is a more specific and direct reason for selecting high-grade concrete to achieve this control. Based on the analysis, the primary reason for using high-grade concrete in pre-stressed concrete, among the given options, is its property of having low creep, which helps preserve the pre-stress force.
The suitability of post tensioning is good for:
As per IS:1343-2012, the minimum characteristic strength of pre-stressed concrete to be used for post-tensioned and pre-tensioned structural elements are respectively:
Which of the following is a disadvantage in the case of Freyssinet system of post tensioning?
Which of the following post tensioning system adopts metallic sandwich plates, flat wedges and distribution plate for anchoring the wires?
The upward deflection of a pre-stressed beam with a straight tendon at a uniform eccentricity below the centroidal axis is given by ______, where P - effective pre-stressing force, e - eccentricity, L - length of the beam, E - Modulus of elasticity, I - moment of inertia: