Dowel sleevs between two castings

A protective sleeves for galvanized rebar Use as gliding sleeves dowel systems & guarantees that transverse force at expantion joint are transmitted without impeding the horizontal movement of each componet. The diameter of the sleeve must be karger than the diameter of the connecting dowel so that there will be free space to fill pour stage and before the additional concrete pour.
The pipe is made of rigid PVC, 3 m' long.

The form of work:

Cutting the tube along the length of the dowel with extra 3 cm.
Closure on one side with a cork of suitable diameter.
Filling grease into the concrete cavity and around the rod.
Fixing the pipe from its open adge to the protruding rod.