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US 8,764,340 B2Granted
Trackless tack coat
OwnerShawn Campbellinventor
Life of this patent
Estimating the term…
Abstract
An asphalt emulsion available for high performing, trackless tack coat applications. The tack coat can be used with hot mix asphalt, warm mix asphalt or cold mix asphalt to provide a tack coat on an existing bituminous or concrete pavement surface. The tack coat can also be used for repair of potholes, utility cuts, and general pavement patching areas.
Claims10
A tack coat for bonding asphalt layers, consisting of:
- asphalt, water, and an anionic emulsifier, wherein the tack coat has a sieve test result of up to about 0.10% (using a No. 20 Iron Wire Sieve), a viscosity of up to about 100 SSU, an asphalt content of at least 50%, a penetration value of up to about 20 dmm, tacks in less than 15 minutes, and a ring and ball softening point greater than 45° C.
Dependencies are inferred from the claim text.