SLURRY/MICRO SYSTEMS
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 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.
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 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.