Highway Engineering - Engineering

Q1:

Reinforcement in cement concrete slab of road pavements, is placed

A longitudinally

B transversely

C longitudinally and transversely

D in the form of welded wire mesh

E none of these.

ANS:D - in the form of welded wire mesh

Isn't welding of rebar reduces its strength? Usually in rigid pavement meshes are tied up.

Please correct me, if I am wrong.