Reflective Cracking
Cracks in an asphalt overlay pavement caused by cracks in the existing pavement "reflecting" up through the overlay. Specialized techniques and materials such a multi-membrane paving fabrics help reduce this problem.
Routing
Enlargement of pavement cracks using a specialized machine. This provides a uniform width reservoir for the sealant. Proper choice of bit size will result in the proper depth to width ratio (depth=width). Properly used this procedure greatly increases the effectiveness and durability of crack sealing.
Sealcoating
Application of a sealant (usually coal-tar emulsion or asphalt emulsion type) to preserve, protect, and beautify asphalt pavements. Generally used on low traffic streets or off-street locations. There are many different sealcoating products available from low-end "do-it-yourself" grades sold in buckets to commercial products.
Commercial asphalt paving products are sold in bulk in concentrated form. Water, silica sand (or other suitable aggregates) and specialized additives are then added in precise ratios (mix design) by the contractor in an agitated mixing tank. Care should be taken to choose the appropriate product, mix design, and application method for the specific project and it's location.
Slurry Seal
A sealcoating process generally used on runways, streets, and roadways. In this process the coating is manufactured by the application equipment as it is being applied. A closely specified blend of graded asphalt emulsion, additives, and aggregate slurry seal is generally classified as Type I, II, or III depending on the size of aggregate used. A large aggregate slurry seal with additional polymers may also be referred to as micro surfacing. Used infrequently on parking areas due to the potential for tracking in hot weather.
Subgrade
The soil prepared to support a structure or a pavement system. It is the foundation for the "pavement structure."
Tack Coat
Asphalt oil, usually emulsion type, applied to existing pavement during repairs or overlay paving to create a bond between the old and new asphalt.
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Grading and Excavating
Asphalt Repair Services
Asphalt Striping Service
Petromat Repairs
