Patent ID: 6558462
Filing Date: 2003-05-06
Classification: C08L,E01C

Abstract:
A method of making a powdered product using Trinidad Lake Asphalt for use in building roads, consisting of:removing raw Trinidad Lake Asphalt from the ground, wherein the Trinidad Lake Asphalt has a softening point of about 85 degrees C.; placing the raw Trinidad Lake Asphalt in a high shear mixer that does not apply heat to the raw Trinidad Lake Asphalt other than by a mixing operation itself; adding alcohol, a non-polar gaseous material, charcoal, clay, silica and a synthetic rubber obtained from used tires to the high shear mixer containing the raw Trinidad Lake Asphalt to define a mixing composition; mixing the mixing composition in the high shear mixer without applying heat to the mixing composition other than by the mixing operation itself, thereby defining a mixed composition, wherein tie mixing operation itself heats the mixing composition to between 160 to 200 degrees C.; wherein the mixed composition has an increased softening point as a result of the addition of the alcohol, non-polar gaseous material, charcoal, clay, silica and the synthetic rubber to the Trinidad Lake Asphalt; cooling the mixed composition by transporting the mixed composition on a conveyor belt while sprinkling the mixed composition with water; pulverizing the mixed composition beyond pellet size and into a powder; packaging the powder into polyethylene bags; and adding the polyethylene bags filled with the powder into a road building mix without removing the powder from the bags.