Cement The minimum compressive strength of good Portland cement standard sand mortar after 72 hours of curing should be about in Newton per mm square -

[Dnyan Deshmukh]

The minimum compressive strength of good Portland cement standard sand mortar after 72 hours of curing should be about in Newton per mm square -

(a) 16

(b) 25

(c) 50

(d) 10.

The correct Answer Is
(a) 16