Cost-effective micro-surfacing, roadway restoration and improved skid resistance.

McAsphalt’s slurry systems fill many specific needs, such as cost-effective micro-surfacing, roadway restoration and improved skid resistance. They can also provide an infinite variety of coloured surfaces for safety or decoration.

Features and Benefits

  • High production rates mean lower user costs.
  • Eco-efficient processes save energy and resources compared to hot mix overlays.
  • Slurry systems can be used as a cost-effective alternative to micro-surfacing in areas that do not require cross-sectional profile correction or rut fill.
  • Prevents surface distresses, keeping good roads in good shape.
  • Restores a roadway surface without affecting curb reveals.
  • Reduces water and air infiltration, which minimizes oxidation, raveling and freeze/thaw damage.
  • Improves skid resistance; gradation can be varied to achieve the desired level of friction.
  • Provides a protective layer/wearing course, which extends the service life of the roadway.
  • Covers segregated areas: end of load, random, longitudinal, gearbox segregation, etc.
  • Covers flushed and bleeding areas.
  • Multi-lift system enhances the drivability of the roadway.
  • Enhances aesthetics of the existing roadway by covering defects and imperfections.
  • Economical solution to preserving infrastructure and capital investment in pavements.

Slurry Seals

Slurry seal is a mixture of aggregate, emulsified asphalt, water and additives that are properly proportioned, mixed and spread over a prepared surface. A polymer-modified system can be used in the same application and will enhance one or more properties of the slurry to better meet a particular project requirement.


Micro-surfacing is composed of engineered, polymer-modified asphalt emulsions mixed with crushed well-graded aggregate, mineral filler, water and additives. The main difference between this system and slurry systems is that micro-surfacing is stackable and therefore engineered for rut fill applications and minor structural deficiencies.

Cape Seals

A cape seal is a combination of a single-chip seal application followed by slurry seal or micro-surfacing. The slurry or micro-surfacing application helps fill the voids between the chips.

Coloured Slurry

Coloured slurry is a mixture of synthetic emulsion binder, pigments and specially selected aggregates. Uses include lane delineation, shoulder delineation, decorative medians, crosswalks, driveways, golf cart paths, bike paths and turn lanes.

Research PaperIcon copy