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Paving the way in Dubai

Roads - Round up

Increased traffic has prompted the widening of an 8km stretch of road in Dubai from four lanes to six. The road runs from downtown Dubai to the Al Futaim roundabout at Ras al Khoor and two contractors are involved.

Tarmac is constructing a new overpass across the busy roundabout while Bin Ladin Construction is responsible for the road widening.

Bin Ladin is using a Dynapac F121W wheeled paver for all asphalting plus a pair of Dynapac rollers; a CC122 vibratory model and a CP221 pneumatic roller.

The paver has a maximum paving width of 6.5m, a flow through capacity of 500t/h and a hopper capacity of 12.5t. It is served by a fleet of 14m 3trucks and is currently achieving a rate of around 1km each week. Each new lane is 2.5m wide.

Once the paver has passed, the newly laid asphalt is compacted with five or six passes of the vibratory CC122 followed by a further three passes from the CP221 pneumatic tyred roller.

A third Dynapac roller, a CA 250 single drum vibratory unit, is being used to compact the subbase. Six passes are usually enough to compact the material to a depth of 300mm. All machinery has been supplied by local Dubai-based Dynapac dealer, INMA.

INFOPLUS jan. kindberg@metso. com

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