Deep Crack Sealing with Chipseal Duane Myers 2013 Deep Crack Sealing with Chipseal

Project Overview Help this road survive without fresh asphalt for a few years while the overlay budget bounces back. What is the project about? We are trying to keep the road together for a few more years while the paving budget rebounds. This is a high traffic road with a 35 MPH speed limit. Postponing an overlay on this road will help get the road synchronized with the paving schedule for the surrounding area.

Various cracks throughout the 920’ section we sealed.

Here is a cut in the road for a basin.

Old utility cuts.

Current Status What progress has been made since the previous milestone? Which tasks have been completed? What issues have been resolved? What new issues have risen? * Is the project currently ahead of schedule, on track, or delayed? If delayed, what is the mitigation plan? We started out with the distributor spraying the alligatored section.

Here is the distributor applying oil on the alligator section. Press play

Here is the truck dropping rock for the cracks and it getting swept in. Click to play the movie

Issues and Resolutions Description of the issue How was it resolved? What and how did it impact the project? Time Cost Other We dribbled some of our ¼” out of a dump truck and swept the rock into the cracks.

Timeline Milestone 1 Date 1 Milestone 2 Date 2 Milestone 3 Date 3 This is right before the roller pressed the rock in.

Here goes the roller.

Dependencies and Resources Project Vendors Manufacturing Sales Engineering Remote Teams Here we sealed the deeper cracks and the rest will be sealed with the conventional top coat.

Here they are spraying oil on the cracks of an old utility cut.

More of the same around a Basin More of the same around a Basin. The crew used squeegee’s to move the oil where it needed to go.

There is rock and felt covering the basin lid to keep the oil out

Rolling.

This is the first lane of the final coat This is the first lane of the final coat. 3/8 chips are the typical size we use.

We had some bleed through everywhere we pre-sealed the cracks.

The heavy traffic cause some bleed through as well.

Here is the basin after the final coat.

Here is the utility cut after shot.

If we did this treatment again we would probably adjust the shot rate for the oil down.

This is after the final coat in an area with some cracking.

This is the after shot of the alligatored area.

Details The test area we did was 920’ long and 24’ wide counting both lanes. It took 3 hours for the crew to seal it. Total cost of the work including materials was $8500. A year and a half later the alligator section is still sealed up and keeping water out. Cosmetically the road isn’t as pretty but, the road will likely hold up for another 4 or 5 years in the worst sections.

Conclusion We will consider this treatment again for roads that are too far gone for a conventional chip seal to work. The biggest challenge to making this work is figuring out how to work it into the program so we don’t lose mileage for the rest of the program. The crew is already maintaining 80+ miles a year with chip sealing. It will be hard to keep doing that and work this type of treatment into the program without losing some miles.