Asphalt Pro - November 2021

Page 12

project management

The crew paved three passes on the right, two passes on the left, a stub on the left, and in this photo they’re backing into place for the last pass out.

How to Pave on a Moving Surface From environmental stewardship to compaction tips, here’s how one professional crew managed an aggregates barge paving project

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Earlier this summer, I worked with the fantastic SECON crew in Alaska to help them fine-tune existing skills and develop new skills to enhance their overall performance. The company asked me to observe and assist the crew during its execution of a paving project on a barge in Gastineau Channel, and it started with a curve ball that the crew handled with professionalism. Let’s look first at the oversized trench the crew took care of, then

12 / November 2021

walk through the steps to pave on a not-sosteady surface for top quality paving. Check out the pictures on the next few pages for a deep dive into the details.

FILL THE TRENCH

Part of a working dock system is the electronics. For this project, the owner needed an electrical trench completed. Originally, they thought it would be a little extra mix in a trough. Not so much. When the crew ar-

rived, the owner had put a large electrical cable in deep trench and filled in 2 inches of aggregate. That left 10 inches for us to fill with hotmix asphalt (HMA). It took about 20 tons. • First, we hand-swept and cleaned off the dirt and dust with a leaf blower to get the sides of the trench clean. • Next, because the distributor truck we had on the project was not equipped with a spray wand, we heated up tack in a kettle and used this to tack the sides.


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