Vögele Super 1800-3i SprayJet Offers Ultrathin Bonded Overlay Options
BY AsphaltPro Staff
The Vögele Super 1800-3i SprayJet paver with VR 600 screed with rear-mounted extensions offers a way to place to place ultrathin bonded overlays without worrying about tack tracking or pickup in front of the paver. Using polymer-modified emulsion from the onboard tank, a computer-controlled spray system built into the Super 1800-3i SprayJet places a bond coat over a width up to 19 feet 8 inches directly in front of the ultrathin bonded overlay.
The Vögele Super 1800-3i SprayJet has five spray bars with a total of 24 high-quality spray nozzles. Spaced 10 inches apart with a 120° spray cone, these are designed to offer a seamless application of emulsion. Depending on the type of emulsion and nozzle size, the rate of spread can be varied between 0.06 to 0.33 pounds per square foot. All the paver operator has to do is set the required quantity before spraying starts. This produces a uniform film of emulsion, which covers the entire surface without overlaps. The nozzles operate in pulsed mode rather than continuously. This, combined with the low spraying pressure of 43.5 pounds per square inch, means that misting is almost completely prevented.
On top of this bond coat, the paver immediately places a polymer-modified, open-graded surface mix—fed by truck or material transfer vehicle—that cures very rapidly as it is compacted by a static roller.
For more information, contact Matt Graves at (615) 501-0600 x382.