Patent US4339289A successfully refreshed from Google Patents.
US4339289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete overlay construction
Assignee: Battelle Development Corp
•
Filing: 1980-08-25
•
Granted: 1982-07-13
•
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 13:22
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.
References Cited (Backward Citations)
US3038393A
Cited
US3153279A
Cited
US3334555A
Cited
US3429094A
Cited
US3557671A
Cited
US3637457A
Cited
US3986885A
Cited
US4133928A
Cited
US4065924A
Cited
US4088808A
Cited
US4112174A
Cited
US4148660A
Cited
US4135029A
Cited
US4068968A
Cited
US4203788A
Cited
US4265957A
Cited
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 |