Seal Coats are impervious treatments that provide effective pavement maintenance to a variety of roadway conditions. Alternate applications of asphalt emulsion and cover aggregate produce durable, flexible, low cost bituminous surfaces.
Seal Coats may be classified as either a Chip Seal or a Graded Seal. Chip Seals may be applied to existing surface treatments or hot mix asphalt to regain skid resistance of polished surfaces, prevent aggregate loss of oxidized surfaces, and eliminate extended pavement deterioration. A Graded Seal is applied over a granular surface as a double high float system to upgrade a roadway to a hard surface which eliminates dust emissions and provides a durable driving surface.
These treatments reduce construction time and user delays compared to conventional pavement treatments and may be subjected to traffic shortly after placement.
Seal Coats are constructed using a variety of asphalt emulsions and cover aggregate combinations to produce a surface for varying traffic loads. With a solid base, a well constructed Seal Coat increases the life cycle of the road, enabling the asset owner to further benefit from a low cost alternative to other wearing surfaces.
RAP (Recycled Asphalt Pavement) Graded Seals are constructed using the common process, but offer further environmental and economic advantages. Specifically, these treatments reduce or eliminate the need for virgin aggregates and decrease the required emulsion and aggregate production rates allowing for a smaller carbon footprint.
To significantly reduce maintenance costs of a roadway, double seals can provide public and private sectors with an effective product capable of lasting up to 10 years.Download PDF sellsheet