“The crews simply put on foul weather gear and keep on going. The exception to this is when in doing so; it would endanger either our crews or the motoring public. In that event, of course, we shut the job down,” he adds.
“We are attempting to maintain the same 2 percent mainline slope on the shoulders instead of the more normal 5 or 6 percent. This is being done because of the total number of asphalt and concrete driveways that intersect with the main road. The original road was laid out at a 1.3 to 1.7 percent slope which will be changed to a full 2 percent slope,” notes Lissard.
By milling at the 12.5-foot width, H & S crews were able to complete the mainline milling in only two smooth passes instead of the more normal three or four cuts. This saved both time and money and required fewer leased trucks. By using the accurate dial-in slope and grade elevation controls on the machine, a smooth flat surface was established across the whole lane. It was also easier for the crew to dial in the super elevations at every 50 feet while milling on a curve without having to stop the progress to manually change this - going from 2 percent to sometimes a 5 percent slope. The result of this was a smoother resurfacing mat because the paver was simply following the already established grade and slope.
In using special combination Kennametal carbide teeth on the cutter drum, H & S crews were able to mill both the asphalt mainline and into the concrete driveways. The only change required, when the driveways were encountered, was that the operator simply slowed down the RX-900’s forward speed a bit.
“It’s a given in the industry today that you can’t economically compete with yesterday’s equipment,” says Gerald Hanchey, president, owner and founder of H & S Construction. “The technology is changing too fast. You must invest in the latest, most modern machines and you must employ crews that have the experience to get the maximum quality from them.
“The Louisiana Highway Department has bonus monies available on many projects,” he adds. “This, however, is awarded for quality rather than simply for productivity. Over the years we have owned and operated various machines. However, few if any, have performed as well or been as versatile and productive for us as our new Roadtec RX-900.”