FEDERAL ASPHALT SERVICES

Chip Seal

A chip seal is commonly referred to as a seal coat that is primarily made up of one size aggregate that can be either washed or dusty. The aggregates can ranged in size from 19mm to 4.75mm. Generally the largest particle should be no more than twice the diameter of the smallest one. Aggregates gradation and type will dictate application rates for aggregate and emulsions along with the type of emulsion.

Graded Aggregate Seal

A graded aggregate seal is defined as a seal is defined as a seal coating using a well-graded aggregate rolled into a high float emulsified asphalt, sometimes referred to as a dense graded seal. A typical gradation is 98% less than 16mm with 2-7% passing the 75mm sieve. Aggregate graduation will determine application rate of emulsion.  

Sand Seal

A sand seal is a spray application of asphalt emulsion followed with a light covering of fine aggregate, such as a sand or screenings. Although this is a simple operation it can be very useful in correcting a number of pavement flaws. Emulsion is usually sprayed between 0.7 to 1.25 l/m2  and sand is placed 5.5 to 12kg/m2 as a cover.  

Fog Seal

A fog seal is a light application of asphalt emulsion to an existing paved asphalt surface. This type of maintenance treatmentis primarily employed as an impervious sealer that will slow the rate of weathering of the asphalt in the underling pavement.    

Parking Lots

Federal Asphalt can provide you or your business whatever it needs in the way of parking lots and areas.  We will work with you to co-ordinate the ideal layout and timeline to produce a fast timeline.

Driveways and Laneways

Federal Asphalt uses emulsion techniques that are perfect for private laneways and roads as well as large driveways and high traffic sections.  We would love to provide you a hassle free quote.