A first class brick when immersed in cold water for 24 hours should not absorb water more than
a) 15 %
b) 20 %
c) 22 %
d) 25 %
A first class brick when immersed in cold water for 24 hours should not absorb water more than
a) 15 %
b) 20 %
c) 22 %
d) 25 %
