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US 6,440,205 B1Granted
Paving binders and manufacturing methods
AssigneeRock Binders, Inc.
InventorsWilliam R. Bailey, Norm D. Pugh, William C. McBee
Life of this patent
Estimating the term…
Abstract
Solid, low-cost paving binder prepared by admixing sulfur, paving grade asphalt (AC) asphalt, and a siliceous filler such as fly ash and silica material, and solidifying the product into preferably flaked, pellet or pastille forms. The solid paving binder has non-sick non-flow properties within a wide range of ambient temperatures, and it can be stored solid for subsequent use in paving applications.
Claims33
A paving binder which is obtained by mixing substances comprising:
- (a) a non-detrimental fine mineral constituent, the fine mineral constituent being substantially comprised of silica materials;
- (b) a hydrocarbon-based plasticizer;
- and
- (c) sulfur which is incorporated into the mixture in a weight percentage of at least 60%,
- wherein said mixture of said mineral constituent, said plasticizer and said sulfur is a single-phase homogeneous mixture.
2 more elements
A paving binder which is obtained by mixing substances comprising:
- (a) a non-detrimental fine mineral constituent which consists substantially of fly ash, silica material, or mixtures thereof;
- (b) a hydrocarbon-based plasticizer which comprises AC asphalt;
- and
- (c) sulfur which is incorporated into the mixture in a weight percentage of at least 60%,
- wherein said mixture of said mineral constituent, said plasticizer and said sulfur is a single-phase homogeneous mixture.
2 more elements
A paving binder which is obtained by mixing substances comprising:
- (a) a non-detrimental fine mineral constituent which consists substantially of fly ash, silica material, or mixtures thereof, wherein said fine mineral constituent is sized as to pass through a 200 mesh sieve;
- (b) a hydrocarbon-based plasticizer which comprises AC asphalt, wherein said hydrocarbon-based plasticizer is mixed in a weight percentage amount within the range from about 1% to about 30%;
- and
- (c) sulfur which is mixed in a weight percentage amount in the range from about 60% to about 98%,
- wherein said mixture of said mineral constituent, said plasticizer and said sulfur is a single-phase homogeneous mixture.
2 more elements
A paving binder which is obtained by mixing substances comprising:
- (a) a non-detrimental fine mineral constituent which consists substantially of fly ash, silica material, or mixtures thereof, wherein said fine mineral constituent is sized as to pass through a 200 mesh sieve;
- (b) a hydrocarbon-based plasticizer which comprises AC asphalt, wherein said hydrocarbon-based plasticizer is mixed in a weight percentage amount within the range from about 2.5% to about 20%;
- and
- (c) sulfur which is mixed in a weight percentage amount in the range from about 70% to about 90%,
- wherein said mixture of said mineral constituent, said plasticizer and said sulfur is a single-phase homogeneous mixture.
2 more elements
A paving binder which is obtained by mixing substances comprising:
- (a) a non-detrimental fine mineral constituent which consists substantially of fly ash, silica material, or mixtures thereof, wherein said fine mineral constituent is sized as to pass through a 200 mesh sieve;
- (b) a hydrocarbon-based plasticizer which comprises AC asphalt, wherein said hydrocarbon-based plasticizer is mixed in a weight percentage amount within the range from about 5% to about 12%, and
- (c) sulfur which is mixed in a weight percentage amount in the range from about 75% to about 90%,
- wherein said mixture of said mineral constituent, said plasticizer and said sulfur is a single-phase homogeneous mixture.
1 more element
A method for manufacturing paving binder comprising:
- (a) providing ingredients that include liquid sulfur, liquid hydrocarbon-based plasticizer, and a non-detrimental fine mineral constituent, the fine mineral constituent consisting substantially of silica materials, fly ash or a mixture thereof,
- (b) mixing said ingredients in controlled amounts, such that the weight percentage of sulfur mixed is at least 60% with respect to all the ingredients in the mixture, so that said mixing provides a single-phase homogeneous fluid mixture of said ingredients;
- and
- (c) cooling said fluid mixture so that it becomes a solid.
1 more element
A paving binder which is obtained by mixing substances comprising:
- (a) a non-detrimental fine mineral constituent that is essentially free from any calcium-based mineral fillers with a low density and comprises mainly silica materials;
- (b) a hydrocarbon-based plasticizer;
- and
- (c) sulfur which is incorporated into the mixture in a weight percentage of at least 60%,
- wherein said mixture of said mineral constituent, said plasticizer and said sulfur is a single-phase homogeneous mixture.
2 more elements
A paving binder which is obtained by mixing substances comprising:
- (a) a non-detrimental fine mineral constituent that is substantially free from calcium hydroxide and comprises mainly silica materials,
- (b) a hydrocarbon-based plasticizer;
- and
- (c) sulfur which is incorporated into the mixture in a weight percentage of at least 60%,
- wherein said mixture of said mineral constituent, said plasticizer and said sulfur is a single-phase homogeneous mixture.
2 more elements
A paving binder which is obtained by mixing substances comprising:
- (a) a non-detrimental fine mineral constituent that is essentially free from calcium oxide and comprises mainly silica materials,
- (b) a hydrocarbon-based plasticizer;
- and
- (d) sulfur which is incorporated into the mixture in a weight percentage of at least 60%,
- wherein said mixture of said mineral constituent, said plasticizer and said sulfur is a single-phase homogeneous mixture.
2 more elements
Dependencies are inferred from the claim text.