Why is no saw cut needed on a lane poured previously with a cold joint along its longitudinal edge?
When a lane is slip formed, and allowed to cure for a day, a cold joint is formed. This cold construction joint would have tie bars placed into it. Then an adjacent lane is poured up against this new lane. The longitudinal joint will remain tight due to the tie bars. It is anticipated that very little water will penetrate this joint. Therefore, to saw cut the longitudinal joint would be difficult at best and not very beneficial. With a tight cold joint, a sealant would not be needed. However, when the time arrives to reseal the pavement joints, the cold joints should be sealed with the rest of the joints.
