I am an iron worker and when I put down steel mesh for concrete floors the inspector has been insisting that I cut the steel fabric wherever it crosses a joint. Yet he's got big steel dowel bars crossing the same joint. What's with him?
The inspector knows the difference in purpose between the bars and fabric. The joint should be able to open and close. The purpose of the dowels is to keep the concrete aligned. Although the dowels cross the joint they are designed to slide wherever the joint changes in width. The steel fabric, on the other hand, bonds to the concrete to keep large cracks from forming in the floor, but it should be cut at joints to keep it from holding the joints closed.