Pavement jointing

[davemul1]

How important is it to match new joint lines to existing joint lines at intersections?

 

[ACtrafficengr]

It's helpful if the pavement joints more or less follow the lane lines, because on a dark wet night, ten years after you pave, the joints may well be more visible than the pavement markings. If they more or less coincide, then drivers won't get confused.

"...students of traffic are beginning to realize the false economy of mechanically controlled traffic, and hand work by trained officers will again prevail." - Wm. Phelps Eno, ca. 1928

"I'm searching for the questions, so my answers will make sense." - Stephen Brust

 

[GeoPaveTraffic]

For pavement durability and control of future cracking it is critical to align joints.

Stated simply, you should never "dead head" a joint. Always assume that a crack will form in a joint and that the crack will propigate beyond the joint where you stop it.

 

[ACtrafficengr]

GPT: It sounds like you are talking about the end of the paving run. What about lining up joints in successive lifts? Should top course joints coincide or be offset from binder and base joints?

"...students of traffic are beginning to realize the false economy of mechanically controlled traffic, and hand work by trained officers will again prevail." - Wm. Phelps Eno, ca. 1928

"I'm searching for the questions, so my answers will make sense." - Stephen Brust

 

[GeoPaveTraffic]

Sorry, I was only talking about concrete pavement. To carry your thought thru to concrete pavement, I also believe that concrete joints should be aligned if a concrete overlay is placed on concrete.

If you are doing asphalt pavement, then vertical joints should be offset from the vertical joint in the lift below. I see no reason to line up asphalt joints from one street to another or at cold joints.

If you are doing an asphalt overlay on concrete, then no reason to line up the joints, same thing with a concrete overlay on asphalt.