Asphalt & Bitumen Specialist

Roadseal Bitumen Services provides Asphalt and Bitumen road and pathways inclusive of, maintenance repairs and crack sealing.

Specialists In....

Driveways & Carparks
Driveway Edgings
Hot Spray & Seal Bitumen
Machine & Hand Laid Asphalt
Excavation Works & Drainage
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Spray Seals

Is a combination of a spray coat of hot cutback bitumen binder to waterproof the area, followed by an even spread of aggregates. The final finish of a spray seal is from fine to coarse – depending on aggregate size, with probability of loose aggregate remaining in the surface for the majority of the seal life in low traffic areas.

A spray seal can be done as either single coat seal ( single/ single) or a Two coat seal ( double / double). A spray seal finish is only as good as the prepared base, as it will follow all depressions in the unsealed pavement. A tight, sound surface, formed to the desired shape is required. There is no ability to improve the surface shape with a spray seal.

In some situations where the pavement is not to standard and there is a risk of damage to the prepared pavement surface a dry matt of aggregate followed by
a heavy application for bitumen and a top coat of aggregate is applied to achieve the same result as a two coat, without damage to the underlying surface. Dry matt should be used in low stress areas only.

A spray seal treatment is specifically designed following the Austroads Seal Design Method, which, amongst other parameters, is based on seal aggregate size, design traffic loads and volumes, and the underlying surface texture. The lower the traffic volume and the greater the aggregate size, the greater the bitumen application rate required to hold the aggregate.

 
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Contact Details

Roadseal Civil Pty Ltd


For an obligation free quote


Free Call: 1800 ROADSEAL

Office: (03) 9859 7803

enquiries@roadseal.com.au
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