US4339289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete overlay construction
Assignee: Battelle Development Corp
•
Filing: 1980-08-25
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Granted: 1982-07-13
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Expires: 2000-08-25
Abstract
Abstract Crack and wear resistant concrete overlays for renovation or patching of deteriorated sections over a substratum can be made by incorporating 4-12 volume percent steel fibers in the concrete overlay and bonding at least a portion of the fibers directly to the substratum.
Inventors
- 👤 David R. Lankard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:39
CPC Classifications
E; E01; E01C; E01C7/00; E01C7/08; E01C7/35; E01C7/351; E01C11/00; E01C11/16; E01C11/18; E01C7/10; E01C7/14; E01C7/145; E01C7/147; E04; E04C; E04C5/00; E04C5/01; E04C5/012; E04C5/02; E04C5/04; E04C5/07; E04G; E04G23/00; E04G23/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
84 words
A method for overlaying a highly reinforced concrete layer on a supporting substratum comprising A. coating the supporting substratum with an adherent bonding agent, B. placing a bed of fibers having an average fiber spacing of less than about 0.3 inch on the bonding agent coating and causing at least a portion of such fibers to adhere thereto, and C. infiltrating the bed of fibers with a concrete mixture and causing the concrete mixture to adhere to the bonding agent coating and the fibers.
Claim 2
Independent Claim
84 words
A method for overlaying a highly reinforced concrete layer on a supporting substratum comprising A. coating the supporting substratum with an adherent bonding agent, B. placing a bed of fibers having an average fiber spacing of less than about 0.3 inch on the bonding agent coating and causing at least a portion of such fibers to adhere thereto, and C. infiltrating the bed of fibers with a concrete mixture and causing the concrete mixture to adhere to the bonding agent coating and the fibers.
Claim 3
Dependent Claim
38 words
The method for overlaying concrete as in claim 1 which additionally comprises forming a concrete surface layer over the bed of fibers wherein the concrete mixture comprises aggregate having an average diameter greater than the average fiber spacing.
Claim 4
Dependent Claim
26 words
The method of claim 1 for overlaying concrete which comprises the additional step of providing a finish layer of mortar over the infiltrated bed of fibers.
Claim 5
Dependent Claim
35 words
The method of claim 1 for overlaying concrete wherein the concrete mixture comprises portland cement and water with one or more additives selected from the group consisting of latex, sand, aggregate and a superplasticizing agent.
Claim 6
Dependent Claim
15 words
The method of claim 1 for overlaying concrete wherein the supporting substratum is also concrete.
Claim 7
Dependent Claim
20 words
The method of claim 1 for overlaying concrete wherein the bonding agent is either a resinous material or cement paste.
Claim 8
Dependent Claim
16 words
The method of claim 6 for overlaying concrete wherein the bonding agent is an epoxy resin.
Claim 9
Dependent Claim
24 words
The method of claim 1 for overlaying concrete wherein the fiber bed is placed by sprinkling loose discontinuous fibers on the bonding agent coating.
Claim 10
Dependent Claim
17 words
The method of claim 1 for overlaying concrete wherein the bed of fibers comprises a preformed mat.
Claim 11
Dependent Claim
19 words
The method of claim 8 or 9 wherein the fibers comprises between about 4-12 volume percent of the overlay.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |