CA2586394A1 - Fiber reinforced rebar - Google Patents
Fiber reinforced rebar Download PDFInfo
- Publication number
- CA2586394A1 CA2586394A1 CA 2586394 CA2586394A CA2586394A1 CA 2586394 A1 CA2586394 A1 CA 2586394A1 CA 2586394 CA2586394 CA 2586394 CA 2586394 A CA2586394 A CA 2586394A CA 2586394 A1 CA2586394 A1 CA 2586394A1
- Authority
- CA
- Canada
- Prior art keywords
- bar
- rovings
- wrapping
- wrappings
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
A composite reinforcing bar is formed by providing a reinforcing material supply of fiber strands rovings; a resin supply bath, and a puller for pulling the resin-impregnated reinforcing material through the resin bath. The reinforcing fibers include a series of Inner rovings longitudinal to the bar with a first and a second helical wrappings of at least one roving wrapped around the inner rovings In opposed directions of wrapping. The resin is permeated through both the inner rovings and through the wrapped rovings to the outer surface where the inner rovings having parts thereof between the first and second wrapped rovings exposed and bulged outwardly by tension applied by the wrappings during curing with the bulged parts defining components of the outer surface portion of the bar which are thus rough and exposed for engaging a material to be reinforced so as to transfer longitudinal loads between the material to be reinforced and the inner rovings.
Claims (7)
1. A reinforcing bar comprising:
a series of inner rovings of reinforcing fibers arranged longitudinal to the bar;
a first helical wrapping or wrappings of at least one roving wrapped around the inner rovings in a first direction of wrapping;
a second helical wrapping or wrappings of at least one roving wrapped around the inner rovings in a second opposed direction of wrapping;
a resin permeated through both the inner rovings and through the wrappings to form a structure integrated by the permeated resin;
the bar having an outer surface portion which extends along at least most of the length of the bar;
at the outer surface portion, the inner rovings having parts thereof between the first and second wrapping or wrappings exposed and bulged outwardly by tension applied by the wrapping or wrappings during curing;
the bulged parts defining components of the outer surface portion of the bar which are thus rough and exposed for engaging a material to be reinforced so as to transfer longitudinal loads between the material to be reinforced and the inner rovings,
a series of inner rovings of reinforcing fibers arranged longitudinal to the bar;
a first helical wrapping or wrappings of at least one roving wrapped around the inner rovings in a first direction of wrapping;
a second helical wrapping or wrappings of at least one roving wrapped around the inner rovings in a second opposed direction of wrapping;
a resin permeated through both the inner rovings and through the wrappings to form a structure integrated by the permeated resin;
the bar having an outer surface portion which extends along at least most of the length of the bar;
at the outer surface portion, the inner rovings having parts thereof between the first and second wrapping or wrappings exposed and bulged outwardly by tension applied by the wrapping or wrappings during curing;
the bulged parts defining components of the outer surface portion of the bar which are thus rough and exposed for engaging a material to be reinforced so as to transfer longitudinal loads between the material to be reinforced and the inner rovings,
2. The reinforcing bar according to Claim 1 wherein the resin is exposed on the outside surfaces of the inner rovings and the wrapped rovings.
3. The reinforcing bar according to Claim 2 wherein the outside surface portion is free from bonded exterior roughening elements attached onto the outside surface of the resin.
4. The reinforcing bar according to Claim 1 wherein, at the outer surface portion, the resin is cured while the inner and wrapped rovings are free from external pressure such that the shape of the outer surface is defined solely by the shape of the inner and wrapped rovings as the resin is cured.
5. The reinforcing bar according to Claim 1 wherein the bar includes at least one additional outer surface portion where the resin and the inner rovings and the wrapped rovings are compressed to form a polygonal cross section for engaging a correspondingly shaped chuck by which the bar can be rotated about a longitudinal axis of the bar.
6. A reinforcing bar comprising:
a series of inner rovings of reinforcing fibers arranged longitudinal to the bar;
a first helical wrapping or wrappings of at least one roving wrapped around the inner rovings in a first direction of wrapping;
a second helical wrapping or wrappings of at least one roving wrapped around the inner rovings in a second opposed direction of wrapping;
a resin permeated through both the inner rovings and through the wrappings to form a structure integrated by the permeated resin;
the bar having an outer surface along the full length of the bar;
at the outer surface, the inner rovings having parts thereof between the first and second wrapping or wrappings exposed and bulged outwardly by tension applied by the wrapping or wrappings during curing;
the bulged parts defining components of the outer surface portion of the bar which are thus rough and exposed for engaging a material to be reinforced so as to transfer longitudinal loads between the material to be reinforced and the inner rovings.
a series of inner rovings of reinforcing fibers arranged longitudinal to the bar;
a first helical wrapping or wrappings of at least one roving wrapped around the inner rovings in a first direction of wrapping;
a second helical wrapping or wrappings of at least one roving wrapped around the inner rovings in a second opposed direction of wrapping;
a resin permeated through both the inner rovings and through the wrappings to form a structure integrated by the permeated resin;
the bar having an outer surface along the full length of the bar;
at the outer surface, the inner rovings having parts thereof between the first and second wrapping or wrappings exposed and bulged outwardly by tension applied by the wrapping or wrappings during curing;
the bulged parts defining components of the outer surface portion of the bar which are thus rough and exposed for engaging a material to be reinforced so as to transfer longitudinal loads between the material to be reinforced and the inner rovings.
7. A reinforcing bar comprising;
a series of inner rovings of reinforcing fibers arranged longitudinal to the bar;
a first helical wrapping or wrappings of at least one roving wrapped around the inner rovings in a first direction of wrapping;
a second helical wrapping or wrappings of at least one roving wrapped around the inner rovings in a second opposed direction of wrapping;
a resin permeated through both the inner rovings and through the wrappings to form a structure integrated by the permeated resin;
the bar having a first outer surface portion which extends along a first part of the length of the bar;
the bar having at least one second outer surface portion which extends along a second part of the length of the bar;
wherein, at the at least one second outer surface portion, the resin and the inner rovings and the wrapping or wrappings are compressed to form a polygonal cross section for engaging a correspondingly shaped chuck by which the bar can be rotated about a longitudinal axis of the bar.
a series of inner rovings of reinforcing fibers arranged longitudinal to the bar;
a first helical wrapping or wrappings of at least one roving wrapped around the inner rovings in a first direction of wrapping;
a second helical wrapping or wrappings of at least one roving wrapped around the inner rovings in a second opposed direction of wrapping;
a resin permeated through both the inner rovings and through the wrappings to form a structure integrated by the permeated resin;
the bar having a first outer surface portion which extends along a first part of the length of the bar;
the bar having at least one second outer surface portion which extends along a second part of the length of the bar;
wherein, at the at least one second outer surface portion, the resin and the inner rovings and the wrapping or wrappings are compressed to form a polygonal cross section for engaging a correspondingly shaped chuck by which the bar can be rotated about a longitudinal axis of the bar.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2586394 CA2586394C (en) | 2007-04-23 | 2007-04-23 | Fiber reinforced rebar |
| EP07855541A EP2137362A4 (en) | 2007-04-23 | 2007-12-14 | Fiber reinforced rebar |
| CN200780052722A CN101680226A (en) | 2007-04-23 | 2007-12-14 | Fiber reinforced rebar |
| PCT/CA2007/002259 WO2008128314A1 (en) | 2007-04-23 | 2007-12-14 | Fiber reinforced rebar |
| JP2010504394A JP2010525197A (en) | 2007-04-23 | 2007-12-14 | Fiber reinforced steel bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2586394 CA2586394C (en) | 2007-04-23 | 2007-04-23 | Fiber reinforced rebar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2586394A1 true CA2586394A1 (en) | 2008-10-23 |
| CA2586394C CA2586394C (en) | 2010-02-16 |
Family
ID=39875001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2586394 Expired - Fee Related CA2586394C (en) | 2007-04-23 | 2007-04-23 | Fiber reinforced rebar |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2137362A4 (en) |
| JP (1) | JP2010525197A (en) |
| CN (1) | CN101680226A (en) |
| CA (1) | CA2586394C (en) |
| WO (1) | WO2008128314A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016044669A1 (en) * | 2014-09-17 | 2016-03-24 | Composite Rebar Technologies, Inc. | Hollow, composite rebar structure, associated fabrication methodolgy, and apparatus |
| WO2018094521A1 (en) | 2016-11-23 | 2018-05-31 | Pultrall Inc. | Method and system for producing a reinforcing bar, and resulting reinforcing bar |
| CN113802770A (en) * | 2021-09-24 | 2021-12-17 | 中交一航局第四工程有限公司 | Processing and laying process of linear member wrapped by bond enhancing knot |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2666913C (en) * | 2009-06-03 | 2011-01-04 | Randel Brandstrom | Fiber reinforced rebar formed into a coil for transportation |
| KR20180132937A (en) * | 2010-10-21 | 2018-12-12 | 리포스테크 엘티디. | Reinforcement bar and method for manufacturing same |
| CA2731343C (en) * | 2011-02-14 | 2011-10-11 | Randel Brandstrom | Fiber reinforced rebar with shaped sections |
| EP2514584B1 (en) * | 2011-04-18 | 2018-01-31 | Siemens Aktiengesellschaft | Bundle of roving yarns, method of manufacturing a bundle of roving yarns and method for manufacturing a work piece |
| CN103057013B (en) * | 2013-01-09 | 2015-07-29 | 南京航空航天大学 | A kind of device and method that is heating and curing of fiber-reinforced resin matrix compound material |
| CN110725475A (en) * | 2019-11-20 | 2020-01-24 | 中国建筑标准设计研究院有限公司 | Prefabricated column with built-in high-corrugated pipe, frame structure of prefabricated column and construction method of prefabricated column |
| CN113861376A (en) | 2020-06-30 | 2021-12-31 | 科思创德国股份有限公司 | Polyurethane composition for producing composite materials |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3332244A (en) * | 1964-10-28 | 1967-07-25 | American Cyanamid Co | Reinforcing bolts |
| US3332224A (en) | 1964-11-17 | 1967-07-25 | Burlington Industries Inc | Pneumatic spinning frame drive regulator |
| CA1238205A (en) * | 1985-04-26 | 1988-06-21 | Cerminco Inc. | Structural rod for reinforcing concrete material |
| JP2612773B2 (en) * | 1990-07-31 | 1997-05-21 | 株式会社熊谷組 | Concrete reinforcing member and method of manufacturing the same |
| JPH05302401A (en) * | 1992-02-27 | 1993-11-16 | Sumitomo Chem Co Ltd | Electric hardening material, electric hardening rope, member obtained therefrom and construction method thereof |
| GB9700796D0 (en) * | 1997-01-16 | 1997-03-05 | Camplas Technology | Improvements relating to reinforcing bars |
| US6612085B2 (en) * | 2000-01-13 | 2003-09-02 | Dow Global Technologies Inc. | Reinforcing bars for concrete structures |
| WO2001076853A2 (en) * | 2000-04-06 | 2001-10-18 | Randel Brandstrom | Fiber reinforced threaded rod |
| CA2444408A1 (en) * | 2003-10-06 | 2005-04-06 | Atef Amil Fahmy Fahim | High ductility, shear-controlled rods for concrete reinforcement |
-
2007
- 2007-04-23 CA CA 2586394 patent/CA2586394C/en not_active Expired - Fee Related
- 2007-12-14 CN CN200780052722A patent/CN101680226A/en active Pending
- 2007-12-14 EP EP07855541A patent/EP2137362A4/en not_active Withdrawn
- 2007-12-14 WO PCT/CA2007/002259 patent/WO2008128314A1/en active Application Filing
- 2007-12-14 JP JP2010504394A patent/JP2010525197A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016044669A1 (en) * | 2014-09-17 | 2016-03-24 | Composite Rebar Technologies, Inc. | Hollow, composite rebar structure, associated fabrication methodolgy, and apparatus |
| US9624667B2 (en) | 2014-09-17 | 2017-04-18 | Composite Rebar Technologies, Inc. | Hollow, composite rebar structure, associated fabrication methodology, and apparatus |
| WO2018094521A1 (en) | 2016-11-23 | 2018-05-31 | Pultrall Inc. | Method and system for producing a reinforcing bar, and resulting reinforcing bar |
| US11613086B2 (en) | 2016-11-23 | 2023-03-28 | Pultrall Inc. | Method and system for producing a reinforcing bar, and resulting reinforcing bar |
| US12011888B2 (en) | 2016-11-23 | 2024-06-18 | Pultrall Inc. | Method and system for producing a reinforcing bar, and resulting reinforcing bar |
| CN113802770A (en) * | 2021-09-24 | 2021-12-17 | 中交一航局第四工程有限公司 | Processing and laying process of linear member wrapped by bond enhancing knot |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2137362A1 (en) | 2009-12-30 |
| CN101680226A (en) | 2010-03-24 |
| WO2008128314A1 (en) | 2008-10-30 |
| EP2137362A4 (en) | 2011-10-19 |
| JP2010525197A (en) | 2010-07-22 |
| CA2586394C (en) | 2010-02-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20140423 |