Have you ever noticed that concrete slabs – your driveway ... Those lines are known as 'expansion joints.' They are there to let the concrete move a bit when the weather changes. Without room to ...

Existing control and expansion joints and saw cuts can't be ignored either. "If control joints are completely overlaid there is great potential the slab will ... old joints the concrete will ...

This is standard repair work for a bridge and slab joints of this age,” R.I. DOT says of $509,000 in work on “slab joints” as ...