CA2731371A1 - Concrete panel with fiber reinforced rebar - Google Patents

Concrete panel with fiber reinforced rebar Download PDF

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Publication number
CA2731371A1
CA2731371A1 CA 2731371 CA2731371A CA2731371A1 CA 2731371 A1 CA2731371 A1 CA 2731371A1 CA 2731371 CA2731371 CA 2731371 CA 2731371 A CA2731371 A CA 2731371A CA 2731371 A1 CA2731371 A1 CA 2731371A1
Authority
CA
Canada
Prior art keywords
rebar
resin
bar
exposed
wrapping
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
Application number
CA 2731371
Other languages
French (fr)
Other versions
CA2731371C (en
Inventor
Randel Brandstrom
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tuf Bar Inc
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA2731371A priority Critical patent/CA2731371C/en
Publication of CA2731371A1 publication Critical patent/CA2731371A1/en
Application granted granted Critical
Publication of CA2731371C publication Critical patent/CA2731371C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/0006—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects the reinforcement consisting of aligned, non-metal reinforcing elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/005—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with anchoring or fastening elements for the shaped articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/32—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/142—Means in or on the elements for connecting same to handling apparatus
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0006—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by the bolt material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Composite Materials (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Moulding By Coating Moulds (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 material is wound on a holder, while the resin remains unset, rotated about its axis on a drive system so that the material is wrapped around a plurality of bars at spaced positions around the axis such that the fed length of the body is wrapped from one bar to the next to form bent portions of the body wrapped partly around each bar and straight portions between the bars. Each bar has angularly grooves which are shaped to mold the bent portions to a required bent shape. The holder is indexed along it axis and removed when full for curing the resin on the holder while the body remains wrapped thereon.

Claims (6)

1. A concrete panel comprising:
a plurality of u-shape rebar elements;

a cast concrete component in which the rebar elements are buried;
each rebar element having two straight portions and one bent portion of 180 degrees forming a loop between the two straight portions;

the loops being exposed at one edge of the concrete component for lifting the concrete panel;

the rebar being formed from rovings of reinforcing fibers arranged generally longitudinal to the body permeated by a thermoset resin through the rovings.
2. A method of lifting a concrete panel comprising:

providing a plurality of u-shape rebar elements buried in a cast concrete component;

each rebar element having two straight portions and one bent portion of 180 degrees forming a loop between the two straight portions;

the loops being exposed at one edge surface of the concrete component;
the rebar being formed from reinforcing fibers arranged generally longitudinal to the body permeated by a thermoset resin through the rovings;

and lifting the concrete panel using the loops.
3. The method according to claim 2 wherein the rebar is cut off at said one edge surface leaving ends of the rebar exposed and uncovered.
4. The method according to claim 2 or 3 wherein the reinforcing bar includes a series of inner longitudinally extending components of reinforcing fibers arranged longitudinal to the bar and providing at least one helical wrapping of at least one component wrapped around the inner longitudinally extending components.
5. The method according to claim 4 wherein said at least one helical wrapping comprises first and second helical wrapping or wrappings in opposed direction of wrapping with the resin being permeated through both the inner longitudinally extending components and through the wrappings to form a structure integrated by the permeated resin.
6. The method according to claim 5 wherein the body has an outer surface portion which extends along at least most of the length of the body and at the outer surface portion, the inner longitudinally extending components have 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.
CA2731371A 2011-02-14 2011-02-14 Concrete panel with fiber reinforced rebar Active CA2731371C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2731371A CA2731371C (en) 2011-02-14 2011-02-14 Concrete panel with fiber reinforced rebar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2731371A CA2731371C (en) 2011-02-14 2011-02-14 Concrete panel with fiber reinforced rebar

Publications (2)

Publication Number Publication Date
CA2731371A1 true CA2731371A1 (en) 2011-04-25
CA2731371C CA2731371C (en) 2012-01-10

Family

ID=43923163

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2731371A Active CA2731371C (en) 2011-02-14 2011-02-14 Concrete panel with fiber reinforced rebar

Country Status (1)

Country Link
CA (1) CA2731371C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012109726A1 (en) * 2011-02-14 2012-08-23 Randel Brandstrom Fiber reinforced rebar with shaped sections and a concrete panel including the shaped rebar sections
WO2013006964A1 (en) * 2011-07-14 2013-01-17 Pultrall Inc. Curved reinforcing rod having an improved mechanical strength at the location of the curvature thereof and method for producing same
US8673101B2 (en) 2011-02-15 2014-03-18 Randel Brandstrom Fiber reinforced rebar with shaped sections

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012109726A1 (en) * 2011-02-14 2012-08-23 Randel Brandstrom Fiber reinforced rebar with shaped sections and a concrete panel including the shaped rebar sections
US8673101B2 (en) 2011-02-15 2014-03-18 Randel Brandstrom Fiber reinforced rebar with shaped sections
WO2013006964A1 (en) * 2011-07-14 2013-01-17 Pultrall Inc. Curved reinforcing rod having an improved mechanical strength at the location of the curvature thereof and method for producing same

Also Published As

Publication number Publication date
CA2731371C (en) 2012-01-10

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