US5173115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphaltic concrete product and a method for the fixation of contaminated soils in the asphaltic concrete
Assignee: American Reclamation Corp
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Filing: 1991-07-08
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Granted: 1992-12-22
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Expires: 2011-07-08
Abstract
Abstract A process for the fixation of hydrocarbons found in contaminated oily soil. The contaminated oily soil is used as a component in a cold mix asphaltic concrete. The soil is mixed with asphalt roof cuttings containing fibers and mineral aggregate to form a mixture. This mixture is coated with a cold mix emulsion to form an asphaltic concrete. The hydrocarbons do not leach from the set concrete.
Inventors
- 👤 John J. Glynn. Jr.
- 👤 Nathan Wiseblood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:48
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/02; E01C19/10; E01C19/1004; B; B09; B09C; B09C1/00; B09C1/08; C; C04; C04B; C04B26/00; C04B26/02; C04B26/26
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
97 words
A method for both the manufacture of a cold mix asphaltic concrete and the fixation of hydrocarbons in contaminated oily soil which includes: (a) mixing the following components: asphalt roof cuttings containing fibers, contaminated oily soil containing 60,000 ppm hydrocarbons, and mineral aggregate to form an aggregate mixture; (b) effecting the mixing without melting the asphalt in the roof cuttings; (c) coating the mixture with a cold mix emulsion to form the asphaltic concrete; and (d) setting the concrete to fix the hydrocarbons whereby the hydrocarbons will not leach from the concrete when the concrete is set.
Claim 2
Independent Claim
97 words
A method for both the manufacture of a cold mix asphaltic concrete and the fixation of hydrocarbons in contaminated oily soil which includes: (a) mixing the following components: asphalt roof cuttings containing fibers, contaminated oily soil containing 60,000 ppm hydrocarbons, and mineral aggregate to form an aggregate mixture; (b) effecting the mixing without melting the asphalt in the roof cuttings; (c) coating the mixture with a cold mix emulsion to form the asphaltic concrete; and (d) setting the concrete to fix the hydrocarbons whereby the hydrocarbons will not leach from the concrete when the concrete is set.
Claim 3
Dependent Claim
36 words
The method of claim 1 wherein the asphalt and shingles cuttings comprise hydrocarbons in an amount of about 10% percent by weight and the fibers are present in an amount of about 2 percent by weight.
Claim 4
Dependent Claim
19 words
The method of claim 2 wherein the cuttings are graded to a size of about less than 2 inches.
Claim 5
Dependent Claim
24 words
The method of claim 2 wherein the cuttings are added to the concrete mixture in an amount between 20 to 35 percent by weight.
Claim 6
Dependent Claim
34 words
The method of claim 1 wherein the contaminated soil is graded to below about 2 inches and the hydrocarbons are selected from the group consisting of gasoline, lubricating oils, and Nos. 2-6 fuel oils.
Claim 7
Dependent Claim
24 words
The method of claim 5 wherein the contaminated soil is added to the mixture in an amount between 30 to 40 percent by weight.
Claim 8
Dependent Claim
17 words
The method of claim 1 wherein the mineral aggregate is between 3/4 to 2 inches in size.
Claim 9
Dependent Claim
17 words
The method of claim 1 wherein the mineral aggregate is between 1/4 to 1/2 inch in size.
Claim 10
Dependent Claim
24 words
The method of claim 1 wherein the mineral aggregate is added to the mixture in an amount between 20 to 40 percent by weight.
Claim 11
Dependent Claim
15 words
The method of claim 1 wherein the emulsion comprises 5 percent of the total mixture.
Claim 12
Dependent Claim
24 words
The method of claim 1 which includes adding to the mixture recovered asphalt cement in an amount between 1 to 4 percent by weight.
Claim 13
Dependent Claim
30 words
The method of claim 1 which includes adding to the mixture an elastomer in an amount of 0.5 to 5 percent by weight based on the weight of the emulsion.
Claim 14
Dependent Claim
12 words
The method of claim 12 wherein the elastomer is styrene butadiene copolymer.
Claim 15
Dependent Claim
30 words
The method of claim 1 which includes adding to the mixture in an amount of 0.5 to 5 percent by weight based on the weight of the emulsion a dessicant.
Claim 16
Dependent Claim
11 words
The method of claim 14 wherein the dessicant is quick lime.
Claim 17
Dependent Claim
13 words
The method of claim 1 which includes: applying the mixture to a surface.
Claim 18
Dependent Claim
94 words
The method of claim 1 wherein the asphalt in shingle cuttings comprise hydrocarbons in an amount of about 10% by weight and the fibers are present in an amount of about 2% by weight; the cuttings are added to the concrete mixture in an amount of between 20-35% by weight, the contaminated soil is added to the mixture in an amount of between 30-40% by weight; the mineral aggregate is added to the mixture in an amount of between 20-40% by weight and the emulsion comprises about 5% by weight of the total mixture.
References Cited (Backward Citations)
US4373961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-12-22 | 1996-06-22 | 1996-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-22 | 2000-06-22 | 2000-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-22 | 2004-06-22 | 2004-12-22 | $7700.00 | Window Closed / Lapsed |