The RoadReady® Diamond Suite contains 10 courses, created specifically for Operators. Each course represents training that is necessary to achieve high quality pavments safely, leading to increased profitability.
Are you applying tack coat properly? As we learned in our newsletter on tack coats, the height of the spray bar and nozzle spray patterns have a significant effect on tack coat coverage. Click on the interaction below to see how various combinations of spray bar height and nozzle pressure produce different coverage patterns.
Want to learn more about tack coats, application rates, laydown timing, specs? Check out the following resources:
A Pavement Interactive article on Tack Coats that describes the basic aspects and application considerations. It also contains additional resources describing emulsions to help you understand how tack works.
Summary results from a Tack Coat Survey of all 50 states that shows how the state DOT’s use tack coat in their specifications.
Got other tack resources or links to share? Please let us know and we’ll add it to the list above.
In our most recent newsletter, we talked about Milling as a technique to level existing surfaces prior to paving. Below is an animation from our Construction course that shows the parts and processes of a typical milling machine. This course also provides an overview of all the construction activities associated with asphalt mix paving including also asphalt mix production, transport, placement, and compaction.
There is also a great article we’d reccomend looking at in Pavement Interactive, Existing Surface Preparation for Overlays, that covers all the common ways to prepare existing pavements for overlays. (Notice the familar milling animation? It’s from our Construction course!)
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for June, 2010.
