EP0340185B1 - Production method for a concrete pillar or beam - Google Patents

Production method for a concrete pillar or beam Download PDF

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Publication number
EP0340185B1
EP0340185B1 EP89850109A EP89850109A EP0340185B1 EP 0340185 B1 EP0340185 B1 EP 0340185B1 EP 89850109 A EP89850109 A EP 89850109A EP 89850109 A EP89850109 A EP 89850109A EP 0340185 B1 EP0340185 B1 EP 0340185B1
Authority
EP
European Patent Office
Prior art keywords
pillar
mold
concrete
surfacing
disc
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.)
Expired - Lifetime
Application number
EP89850109A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0340185A3 (en
EP0340185A2 (en
Inventor
Olli Virtanen
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.)
BETEMI Oy
Original Assignee
BETEMI Oy
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 BETEMI Oy filed Critical BETEMI Oy
Priority to AT89850109T priority Critical patent/ATE100369T1/de
Publication of EP0340185A2 publication Critical patent/EP0340185A2/en
Publication of EP0340185A3 publication Critical patent/EP0340185A3/en
Application granted granted Critical
Publication of EP0340185B1 publication Critical patent/EP0340185B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/30—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon
    • B28B1/32—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by projecting, e.g. spraying
    • 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
    • B28B11/0845—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads for smoothing
    • 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
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/42—Methods or machines specially adapted for the production of tubular articles by shaping on or against mandrels or like moulding surfaces
    • B28B21/44—Methods or machines specially adapted for the production of tubular articles by shaping on or against mandrels or like moulding surfaces by projecting, e.g. spraying
    • 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
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/92—Methods or apparatus for treating or reshaping
    • B28B21/96—Methods or apparatus for treating or reshaping for smoothing, roughening, corrugating or for removing burr

Definitions

  • the present invention concerns a production method for fabricating a concrete pillar or beam, according to which method the concrete mix is sprayed against the wall of a mold having a predetermined shape, after which the concrete surface is smoothed by levelling.
  • AU-A-474397 refers to an apparatus for trueing concrete-clad pipes having a rotary brush arranged with its rotational axis substantially parallel to the axis of the pipe body.
  • the apparatus according to this reference can not produce a carefully levelled surface if the outer cross-section of the pipe body is not circular, as the surface of the trueing brush facing the pipe body surface has its rounded envelope surface in contact with the pipe body surface.
  • the method in accordance with the invention is characterized in that the concrete surface is levelled with the help of a surfacing disc, rotatable about an axis being substantially perpendicular to the longitudinal direction of the pillar or beam, whereby the pillar or beam is rotated through equal fractions of 360° or indexed so as to place on side of the pillar or beam at a time facing the surfacing disc so that the pillar or beam achieves a section of a square, rectangle, pentagon, hexagon, or a similar form.
  • pillar constructions with an appealing look are achieved that are readily transferrable and transportable by virtue of their hollow-core construction.
  • the concrete pillar has a hollow-core structure, its compressive strength will be sufficient for a majority of applications. If necessary, the hollow core can be filled with concrete mix.
  • An embodiment of the invention is characterized by having the mold rotatable about its vertical axis and having a positional clamping facility for spraying and surfacing. This approach results in a quick production method for a concrete pillar, which is then transported for curing and hardening after spraying and surfacing.
  • Another embodiment of the invention is characterized by having the mold placed in a horizontal rotator, and the rotator is used for turning the beam during production to alternately align three of the four sides of the beam facing the concrete spray gun and the surfacing disc so as to achieve a U-shape cored beam structure.
  • This approach results in a cored beam structure, which has a predetermined structural strength and can be, when required, further steel-reinforced and filled with concrete mix at the construction site.
  • a further embodiment of the invention is characterized by having the mold structure fabricated by winding plastic material, thin steel sheet or like material over elongated bars positioned so as to achieve a desired shape of the mold.
  • the mold structure is further provided with, e.g., reinforcement fabric which offers improved adherence for the sprayed concrete mix prior to the surfacing operation.
  • concrete mix is sprayed against the walls of a mold 1, 2, 3, 4, 5 having a predetermined shape, after which the concrete surface is levelled.
  • the concrete surface is levelled with the help of a surfacing disc 6 so by way of rotating the pillar or beam so as to place one side of the pillar or beam at a time facing the surfacing disc so that the pillar or beam achieves a desired cross-section.
  • the mold is rotatable about its vertical axis and has a positional clamping facility for spraying and surfacing.
  • the mold 2 is placed in a horizontally aligned rotator 7, and the rotator is used for turning the beam during production to align three of the four sides of the beam facing the concrete spray gun and the surfacing disc apparatus so as to achieve a U-shaped cored beam structure.
  • the cored beam and the mold are removed from the rotator 7 as indicated by arrow 8.
  • Illustrated in Figs. 10 and 13 is a method for forming the mold structure using plastic sheet wound over thin bars 9. Bars 10 and wire 11 form a fabric structure, which provides adherence to the concrete mix.
  • the mold can be formed from metal sheets 4 shaped as angle profiles.
  • the mold is formed of angle steel profiles and elongated metal sheet strips 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
EP89850109A 1988-04-28 1989-04-06 Production method for a concrete pillar or beam Expired - Lifetime EP0340185B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89850109T ATE100369T1 (de) 1988-04-28 1989-04-06 Verfahren zum herstellen von saeulen oder balken aus beton.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI881990 1988-04-28
FI881990A FI80400C (fi) 1988-04-28 1988-04-28 Framstaellningsfoerfarande foer betongpelare eller -balk.

Publications (3)

Publication Number Publication Date
EP0340185A2 EP0340185A2 (en) 1989-11-02
EP0340185A3 EP0340185A3 (en) 1991-07-03
EP0340185B1 true EP0340185B1 (en) 1994-01-19

Family

ID=8526369

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89850109A Expired - Lifetime EP0340185B1 (en) 1988-04-28 1989-04-06 Production method for a concrete pillar or beam

Country Status (6)

Country Link
EP (1) EP0340185B1 (es)
AT (1) ATE100369T1 (es)
DE (1) DE68912391T2 (es)
ES (1) ES2050275T3 (es)
FI (1) FI80400C (es)
RU (1) RU1809804C (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110625752A (zh) * 2019-09-25 2019-12-31 刘敏洁 一种陶瓷电力绝缘子制造成型后修胚整形机械及方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI90842C (fi) * 1990-02-02 1994-04-11 Betemi Oy Betonipilarin valmistusmenetelmä
FI87747C (fi) * 1990-12-12 1993-02-25 Betemi Oy Framstaellningsfoerfarande av betongpelare
GB2253367A (en) * 1991-02-07 1992-09-09 Costain Building Prod The manufacture of reinforced concrete sections
FI166U1 (fi) * 1992-02-21 1992-07-15 Betemi Oy Framstaellningsanordning foer betongpelare
FR2689551B1 (fr) * 1992-04-07 1997-03-14 Georges Harnois Procede de realisation de locaux refermes ou ouverts, constituant des espaces annexes a une habitation principale.
DE4422442A1 (de) * 1994-06-29 1996-01-11 Reymann & Schwoerer Gmbh & Co Hilfsvorrichtung zum Herstellen von Schalungsteilen
FR2734751B1 (fr) * 1995-06-01 1997-08-14 Mobilier Canaguel Eurl Procede de realisation d'une structure de forme helicoidale telle une colonne et structure ainsi realisee.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1552300A (en) * 1924-11-26 1925-09-01 Harry G Hersey Weatherproof pole or post
GB447357A (en) * 1935-08-06 1936-05-18 James Duncan Hall Apparatus for moulding pipes, pillars and other cylindrical forms in plastic materials
US2301760A (en) * 1940-06-28 1942-11-10 Thomas B Sturges Method for making hollow elongated bodies
US2522593A (en) * 1946-07-29 1950-09-19 William Earl Anderson Mold for cementitious material
FR1369144A (fr) * 1963-09-10 1964-08-07 Pirelli Corps creux à contour fermé, dont la surface extérieure est formée de fibres et de résines, en particulier de nappes de fibres de verre et de résines thermo-durcissables et son procédé de fabrication
FR2282979A1 (fr) * 1974-05-29 1976-03-26 Brunet France Sa Procede et machine necessaire pour la fabrication de modules tri-dimensionnels
GB1465521A (en) * 1975-01-14 1977-02-23 Nat Res Dev Manufacture of hollow articles
FI872244A (fi) * 1987-05-21 1988-11-22 Betemi Oy Framstaellningsfoerfarande foer betongelement.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110625752A (zh) * 2019-09-25 2019-12-31 刘敏洁 一种陶瓷电力绝缘子制造成型后修胚整形机械及方法
CN110625752B (zh) * 2019-09-25 2020-11-24 江西省萍乡市爱德电瓷有限公司 一种陶瓷电力绝缘子制造成型后修胚整形机械及方法

Also Published As

Publication number Publication date
FI80400B (fi) 1990-02-28
DE68912391T2 (de) 1994-06-16
FI881990A (fi) 1989-10-29
RU1809804C (ru) 1993-04-15
FI80400C (fi) 1990-06-11
FI881990A0 (fi) 1988-04-28
EP0340185A3 (en) 1991-07-03
DE68912391D1 (de) 1994-03-03
ATE100369T1 (de) 1994-02-15
ES2050275T3 (es) 1994-05-16
EP0340185A2 (en) 1989-11-02

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