In civil Engineering (Bridge works), What are the three major types of reinforcement used in pre-stressing?

I agree with Eng.Alex and Eng .Roj

a) Bursting reinforcement

b) Equilibrium reinforcement

c) Spalling reinforcement

I think that is a good reinforcements methods :

first Spalling reinforcement Spalling stresses are established behind the loaded area of anchor blocks and this causes breaking away of surface concrete. These stresses are induced by strain incompatibility with Poisson’s effects or by the shape of stress trajectories.

(second Equilibrium reinforcement Equilibrium reinforcement is required where there are several anchorages in which prestressing loads are applied sequentially.

(third Bursting Reinforcement Tensile stresses are induced during prestressing operation and the maximum bursting stress occurs where the stress trajectories are concave towards the line of action of the load. Reinforcement is needed to resist these lateral tensile force

In Canada they have used caron fibers to reinforced the concrete of the Bridge  .