Recycled asphalt compositions and methods thereof
AssigneeManhole Adjusting Inc.
InventorJohn Corcoran
Life of this patent
Estimating the term…
Abstract
A pavement composition includes a recycled hot mix asphalt (HMA) sheet mix composition including more than 50% and up to 100% recycled fines mixed with a rejuvenating agent. The recycled fines of the HMA sheet mix are separated from a reclaimed asphalt pavement (RAP) composition and substantially all of the recycled fines are capable of passing through a sieve having an opening size of ⅜ inch (9.5 mm). Pavement systems include an existing pavement layer and a thin-lift overlay made of the recycled HMA sheet mix on the existing pavement layer. Pavement systems also include a three-layer system including a leveling course layer, an interlayer, and a surface course layer in which the leveling course layer and/or the surface course layer include a recycled HMA sheet mix composition.
Claims29
A pavement composition comprising a recycled hot mix asphalt sheet mix composition, comprising:
- more than 60% to 100% recycled fines separated from a reclaimed asphalt pavement (RAP) composition, substantially all of the more than 60% to 100% recycled fines capable of passing through a sieve having an opening size of ⅜ inch (9.5 mm);
- and
- a rejuvenating agent mixed with the more than 60% to 100% recycled fines.
A pavement composition comprising a recycled hot mix asphalt sheet mix composition, comprising:
- more than 50% to 100% recycled fines separated from a reclaimed asphalt pavement (RAP) composition, substantially all of the more than 50% to 100% recycled fines capable of passing through a sieve having an opening size of ⅜ inch (9.5 mm);
- and
- a rejuvenating agent mixed with the more than 50% to 100% recycled fines,
- wherein of the more than 50% to 100% recycled fines:
- 100% by dry aggregate weight is capable of passing through a ⅜ inch (9.5 mm) sieve, 70% to 90% by dry aggregate weight is capable of passing through a No. 4 (4.75 mm) sieve, 53% to 73% by dry aggregate weight is capable of passing through a No. 8 (2.36 mm) sieve, 26% to 42% by dry aggregate weight is capable of passing through a No. 30 (0.600 mm) sieve, 18% to 30% by dry aggregate weight is capable of passing through a No. 50 (0.300 mm) sieve, and 9% to 15% by dry aggregate weight is capable of passing through a No. 200 (0.075 mm) sieve.
A pavement composition comprising a recycled hot mix asphalt sheet mix composition, comprising:
- more than 50% to 100% recycled fines separated from a reclaimed asphalt pavement (RAP) composition, substantially all of the more than 50% to 100% recycled fines capable of passing through a sieve having an opening size of ⅜ inch (9.5 mm);
- and
- a rejuvenating agent mixed with the more than 50% to 100% recycled fines,
- wherein of the more than 50% to 100% recycled fines:
- 100% by dry aggregate weight is capable of passing through a ⅜ inch (9.5 mm) sieve, 95% to 100% by dry aggregate weight is capable of passing through a No. 4 (4.75 mm) sieve, 79% to 93% by dry aggregate weight is capable of passing through a No. 8 (2.36 mm) sieve, 40% to 54% by dry aggregate weight is capable of passing through a No. 30 (0.600 mm) sieve, 27% to 39% by dry aggregate weight is capable of passing through a No. 50 (0.300 mm) sieve, and 13% to 19% by dry aggregate weight is capable of passing through a No. 200 (0.075 mm) sieve.
Dependencies are inferred from the claim text.