Super 800 boasts easy operation and remarkable performance.
Praslin is a very hilly island. The Super 800 took on gradients of up to 20% with ease.
The Super 800 paved up to within 2 in. of the existing boundaries.
A mechanical grade sensor was used for grade and slope control. Minor differences in height were levelled out with the 6.6-ft. ski.
Praslin is the second-largest of the Seychelles islands, and tourism is the island’s main source of income. A road had to be diverted for a new five-star hotel and property development project. This road would have obstructed the residents’ access to the sea. Sey-Afrique Exporters from Pinetown in South Africa won the contract for construction of the new, roughly .93-mile stretch of road.
Temperatures between 95° and 104° F with relative humidity of over 90% made this a physically grueling job. In addition, the topography was tricky with gradients of more than 20% and tight hairpin bends. Sey-Afrique chose a Vgele Super 800 paver for the job. The small paver handles pave widths from 1.64 to 10.5 feet. Its asymmetrical material hopper allows for work close to edges, even in tight bends.
Helmut Bethge from Wirtgen South Africa trained and supervised the paving team throughout the job. “Although most of them had never laid hands on a paver before, they were very soon able to operate it on their own,” he says.
Obtaining asphalt was no easy matter on an island that is approximately 7.46 miles long and 3.11 miles wide. Sey-Afrique had to revive an ancient government-owned mobile asphalt mixing plant in order to prepare bitumen-coated material. Although the mix did not meet the standard asphalt specifications, the Super 800 was able to produce good results with it.
Combined with an AB 200 Extending Screed in TV version, the paver placed two asphalt layers on a roughly consolidated base. The first one, a level-regulating layer between 1.2 and 4.7 inches thick, was placed to equalize the considerable unevenness of the base. A layer of such strongly varying thickness is unusual, but the paver made light work of the task. The existing curb served as a reference. Then a 2-inch wearing course followed.
Around 80 tons of mix was placed every day for the roadway, which varied in width between 24.61 and 34.45 feet.