Martin Product Sales LLC
“An effective pavement preservation program includes the use of a range of preventive maintenance techniques and strategies, such as fog seals.” – FHWA
The Lowest Cost Preventive Maintenance Treatment
Asphalt ages and becomes more brittle after exposure to ultra-violet sunlight and hot and cold temperatures. Traffic wears asphalt off of the pavement surface and initiates micro-damage of fatigue cracking. A very light layer of new asphalt and rejuvenating oils seals and waterproofs the surface, fills in the micro-cracks and prolongs the pavement life. A fog seal is a light application of a slow-setting asphalt emulsion diluted with water and applied by a distributor. Fog seals cover small cracks and surface voids, reduce raveling, and enrich dry pavements. A fog seal is an inexpensive way to rejuvenate and seal pavement surfaces. Fog seals are often applied on a routine schedule (typically every three to five years) to prolong pavement life.
Fog Seal Benefits
- The asphalt emulsion seals the pavement from water penetration.
- The treatment blackens pavement, adding differentiation to pavement lanes.
- The asphalt renews aged asphalt pavements that have become dry and brittle and prevents raveling.
- The low viscosity material flows into cracks and surface voids.
- Fog seals can be used in conjunction with chip seals to prevent or repair chip loss.
- Fog seals are the least expensive pavement preservation treatment to prolong pavement life and delay major maintenance or reconstruction.
Surface Preparation & Construction
Fog seals should be applied using well-calibrated distributors to spread as evenly as possible to achieve optimum coverage and penetration of surface cracks. The rate of application (typically 0.1 to 0.15 gallon per square yard of diluted emulsion) depends on surface texture, dryness, and degree of cracking. Fog seal emulsions are typically diluted with water by 25 to 75%.