In limit state design of concrete for flexure, the area of stress block is taken as
(a) 0.530 fck. Xu (b) 0.446 fck . Xu
( c) 0.420 fck .Xu (d) 0.360 fck . Xu
Where fck is characteristic compressive strength of concrete and Xu is the depth of neutral axis from top.
(a) 0.530 fck. Xu (b) 0.446 fck . Xu
( c) 0.420 fck .Xu (d) 0.360 fck . Xu
Where fck is characteristic compressive strength of concrete and Xu is the depth of neutral axis from top.