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Park Road is Ideal Warm Mix Project

Paving - Warm Mix

"In a setting like this, where wildlife roams freely and visitors hike throughout the park, the cooler temperature of the warm mix provided a much safer environment," says Rick Schumann, project superintendent.

Along with repaving numerous campsite and parking lot areas, the Lake Mineral Wells State Park project included reconstructing the main park roadway, which had to be milled, stabilized and then resurfaced with a 2-inch lift of warm mix.

The paving crew used a Cat AP-1055B 10-foot track paver with extensions on the screed to pave the 20-foot-wide park roadway in one pass.

Since early 2008, Lane Construction Corp.'s Texas division has placed over 90,000 tons of warm mix.

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When the Texas Department of Transportation solicited bids for paving work at Lake Mineral Wells State Park & Trailway, located west of Fort Worth, the original contract specifications called for a hot-mix asphalt design. The Lane Construction Corp.'s Roanoke, TX division proposed a warm mix design and was awarded the contract.

Along with the environmentally-friendly benefits warm mix provides, which was definitely a plus when considering the pristine beauty of the 3,282-acre park, the contractor had logistical issues that only warm mix could address.

According to John Rauer, plant manager for Lane's Bridgeport, TX facility, located approximately 60 miles from the project, hauling hot mix that distance proved challenging.

Another challenge that had to be addressed in executing the project had to do with the tight working conditions in placing asphalt on some of the campsite areas included in the contract. Once mix arrived via 22-ton lowboy trailers, it had to be dumped at a staging area, loaded into tandem dump trucks that could then maneuver the tight paving sites.

And to add yet another challenge, the project was scheduled for construction between November 2008 and March 2009, when cooler temperatures would make it difficult to achieve density specifications with mix hauled a long distance and then transferred into smaller equipment before paving and compaction could actually begin.

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