EP0172028A2 - Objet inorganique renforcé par des fibres - Google Patents

Objet inorganique renforcé par des fibres Download PDF

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Publication number
EP0172028A2
EP0172028A2 EP85305790A EP85305790A EP0172028A2 EP 0172028 A2 EP0172028 A2 EP 0172028A2 EP 85305790 A EP85305790 A EP 85305790A EP 85305790 A EP85305790 A EP 85305790A EP 0172028 A2 EP0172028 A2 EP 0172028A2
Authority
EP
European Patent Office
Prior art keywords
fibre
inorganic composite
inorganic
bonding agent
threads
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
EP85305790A
Other languages
German (de)
English (en)
Other versions
EP0172028B1 (fr
EP0172028A3 (en
Inventor
Tadashi C/O Mitsui Kensetsu K.K. Okamoto
Sumiyuki C/O Mitsui Kensetsu K.K. Matsubara
Masahisa C/O Mitsui Kensetsu K.K. Handa
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.)
Mitsui Construction Co Ltd
Original Assignee
Mitsui Construction Co Ltd
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
Priority claimed from JP17002584A external-priority patent/JPS6149803A/ja
Priority claimed from JP14389885A external-priority patent/JPS627655A/ja
Application filed by Mitsui Construction Co Ltd filed Critical Mitsui Construction Co Ltd
Publication of EP0172028A2 publication Critical patent/EP0172028A2/fr
Priority to MYPI87001929A priority Critical patent/MY101615A/en
Publication of EP0172028A3 publication Critical patent/EP0172028A3/en
Application granted granted Critical
Publication of EP0172028B1 publication Critical patent/EP0172028B1/fr
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
    • 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
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/26—Extrusion dies
    • B28B3/2645—Extrusion dies using means for inserting reinforcing members
    • 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

Definitions

  • This invention relates to a process for manufacturing a fibre-reinforced inorganic body.
  • the foregoing conventional process is, however inconvenient in that the bending strength of the fibre-reinforced inorganic body obtained thereby is not substantially improved as compared with that of a moulded inorganic body not reinforced with the fibre body.
  • This invention has for its purpose to provide a process which produces a fibre-reinforced inorganic body which is free from the foregoing inconvenience caused by the foregoing conventional process and which is improved in its bending strength.
  • the process for manufacturing a fibre-reinforced inorganic body is characterized in that at least one fibre body comprising a plurality of threads is impregnated with a bonding agent and is embedded in an inorganic composite, the inorganic composite including the fibre body is extruded to be moulded, and the inorganic composite and the bonding agent of the resulting extruded body are hardened.
  • the present invention also provides a fibre-reinforced inorganic body comprising a moulded inorganic composite, at least one fibre body comprising a plurality of threads embedded in the moulded inorganic composite, and a hardened bonding agent included in the fibre body and forming a bond between the moulded inorganic composite and the fibre body.
  • the inorganic composite is composed of cement, sand, and water and, if desired, may contain any other kind of inorganic material such as plaster.
  • the cement there is preferably used Portland cement, aluminium cement, Portland blast-furnace cement, silica cement, flyash cement, etc.
  • the inorganic composite there may be optionally present any desired additive such as milling aids, retarders, accelerators, water reducing agents, coagulants, thickness, builders such as an air entraining agent, etc., and aggregate of a suitable size.
  • the short fibre there may be used one or more of inorganic fibres such as carbon fibre, glass fibre, ceramic fibre, etc.; organic fibres such as aromatic polyamide fibre such as of straight coordinated aromatic polyamide, aromatic polyether amide, aromatic polysulphide amide, aromatic polysulphone amide, aromatic polymethylene amide, aromatic polyketone amide, aromatic polyamine amide and copolymers thereof, polyester fibre, polyolefin fibre, polyvinyl alcohol fibre, etc.; and metallic fibres such as cold drawn steel wire, steel wire for prestress, or the like.
  • Such short fibres are in general several microns to several tens of microns in diameter and 5 to 15 mm in length. These are preferably mixed in the inorganic composite in an amount of up to 2% by volume relative to the inorganic composite.
  • the thread can be not only any type of yarn (preferably selected from roving, multifilaments, strand and sliver) but also a monofilament.
  • the "thread” is an elongated flexible member.
  • the material of the thread is in general the same as that of the short fibre, but may be different therefrom.
  • the fibre body comprising the plurality of threads. (of the same kind or of two or more different kinds) is formed into a rod, sheet, tube or body of other desired shape.
  • the fibre body is formed by collecting the plurality of threads into a body of parallelly arranged, twisted or untwisted, threads.
  • the fibre body is formed by interweaving the plurality of threads into a net, cloth or braid.
  • the braided fibre body may be a cord which is round or square in section, a flat body or a body of other desired shape, for instance, so that the combined integrality of the individual threads thereof can be heightened.
  • the thread has protrusions in the longitudinal direction thereof, the frictional resistance between the threads of the braid becomes large, and consequently it becomes easy to transmit to the fibre body a stress applied to the threads, and at the same time the close contact between the fibre body and the inorganic composite is improved.
  • the thread which is several microns to several tens of microns, and the amount of these threads in the inorganic composite is preferably up to 5% by volume relative to the inorganic composite.
  • the inorganic composite there may be embedded at least one fibre body, and in the case of the use of a plurality of fibre bodies it is preferable that they are so embedded therein as to be distributed uniformly.
  • the bonding agent there may be used a coldsetting or thermosetting resin such as of epoxy type, polyester type, vinylester type, phenolic type, polyimide type, etc.; a coldsetting or thermosetting inorganic bonding agent such as of alkali metal silicate type, colloidal silica type, or phosphate type; or a mixture of a coldsetting or thermosetting organic resin and an inorganic bonding agent.
  • a coldsetting or thermosetting resin such as of epoxy type, polyester type, vinylester type, phenolic type, polyimide type, etc.
  • a coldsetting or thermosetting inorganic bonding agent such as of alkali metal silicate type, colloidal silica type, or phosphate type
  • a mixture of a coldsetting or thermosetting organic resin and an inorganic bonding agent such as of epoxy type, polyester type, vinylester type, phenolic type, polyimide type, etc.
  • a coldsetting or thermosetting inorganic bonding agent such as of alkali metal silicate type, colloidal
  • a vacuum extruder 1 having an upper screw cylinder 3 and a lower screw cylinder 4 in communication with each other via a vacuum chamber 2.
  • a hopper 6 for supplying an inorganic composite 5.
  • One end of the lower screw cylinder 4 is in communication with a die 10 having a die opening 9 of a predetermined shape, via an adapter 8 for introducing a fibre body 7.
  • the fibre body 7 is in the form of a rod, for instance, formed by collecting a plurality of roving type threads 13 of carbon fibre together in parallel and by then passing them through a dipping tank 12 containing a bonding agent 11.
  • a single fibre body 7 only is shown for the sake of simplification, but actually in this case a plurality thereof is introduced into the adapter 8.
  • a conveyer 14 for conveying extruded body 15.
  • the body 15 is cut by a cutter 16 to pieces of a predetermined length, and the body 15 is transferred to the surface of a pallet 17.
  • numeral 18 denotes screws of each of the screw cylinder 3 and the screw cylinder 4.
  • Numeral 19 denotes a supply source of the foregoing roving threads
  • numeral 20 denotes a pair of driving rolls.
  • an inorganic composite 5 composed of Portland cement, sand and water, for instance, is supplied to the hopper 6.
  • the inorganic composite 5 thus supplied is introduced into the upper screw cylinder 3 and is moved forwards while being kneaded, and is then conveyed to the vacuum chamber 2 by the screw 18 of the upper screw cylinder 3, and is subjected, in that vacuum chamber 2, to a degassing treatment. Thereafter, the kneaded and degassed inorganic composite is moved forwards by the screw 18 of the lower screw cylinder 4 and introduced into the adapter 8.
  • the inorganic composite 5 having embedded therein the disposed fibre bodies is extruded through the opening 9 of the die 10 so as to be moulded into a desired shape, for instance, a hollow square shape as illustrated in Figure 2.
  • the resulting extruded body 15 is then moved forwards by the conveyer 14 and is cut by the cutter 16 to pieces of a predetermined length in sequence.
  • the body 15 is placed on the pallet 17 ahead of the conveyer 14, and is introduced into an autoclave (not shown).
  • the extruded body 15 is heated in the autoclave so that the inorganic composite 5 and the bonding agent 11 inside and outside each of the fibre bodies 7 are both cured, and thus there is obtained a fibre-reinforced inorganic body.
  • FIG 3 is a diagram explaining another embodiment of a process for manufacturing a fibre-reinforced inorganic body according to this invention.
  • This embodiment is different from the foregoing embodiment in that short fibres 21 are mixed in the inorganic composite 5 and that there is used as the fibre body a braided fibre body 7' formed by interweaving a plurality of strand-like threads 22 of total aromatic polyamide fibre and a plurality of braided fibre bodies, each supplied from a corresponding supply source 23.
  • an inorganic composite 5 composed of Portland cement, sand and water, mixed with the short fibres 21 of total aromatic polyamide, is supplied to the hopper 6.
  • the supplied inorganic composite 5 is moved forwards, while being kneaded, in the upper screw cylinder 3 and is conveyed to the vacuum chamber 2. After being degassed in that chamber 2, it is moved forwards in the lower screw cylinder 4 and is then introduced into the adapter 8.
  • a plurality of the braided fibre bodies 7' are passed through the dipping tank 12 containing a bonding agent 11 of thermosetting epoxy resin so as to be impregnated therewith, and are then introduced into the adapter 8 so as to be embedded at their predetermined disposed positions in the foregoing inorganic composite 5.
  • the resulting extruded body 15 is moved forwards and is cut by the cutter 16 to pieces of a predetermined length in sequence.
  • the bodies 15 thus cut are placed on the pallet 17 ahead of the conveyer 14 and are introduced into an autoclave (not shown).
  • the bodies 15 are heated in the autoclave so that the inorganic composite 5 including the fibre bodies 7' and the bonding agent 11 existing inside and outside each of the fibre bodies 7' are both cured, and thus there is obtained a fibre-reinforced inorganic body.
  • the curing is carried out in the autoclave, but any other curing means such as steaming curing may be used.
  • the bonding agent is not limited to a thermosetting one, since a coldsetting bonding agent may also be used.
  • Example 2 By using as an inorganic bonding agent lithium silicate in place of the organic bonding agent used in Example 1, a fibre-reinforced inorganic body was obtained in the same manner as in Example 1. The bending strength thereof was 90 kg/cm 2 .
  • Example 3 For further comparison, a fibre-reinforced inorganic body comprising the same inorganic composite and the same fibre bodies embedded therein as those of the body of Example 3, but including no bonding agent, was obtained in almost the same manner as in Example 1.
  • the bending strength thereof was 80 kg/cm 2 .
  • a fibre body comprising a plurality fo threads is impregnated with a bonding agent
  • the same is embedded in an inorganic composite
  • the inorganic composite including the fibre body is extruded and the inorganic composite and the bonding agent of the resulting extruded mould are hardened, so that the inorganic composite and the fibre body are strongly bonded together through the bonding agent, and consequently there can be obtained easily a fibre body reinforced inorganic body which is improved in its bending strength.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
EP85305790A 1984-08-16 1985-08-14 Objet inorganique renforcé par des fibres Expired - Lifetime EP0172028B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MYPI87001929A MY101615A (en) 1984-08-16 1987-09-25 Fibre-reinforced inorganic body

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP17002584A JPS6149803A (ja) 1984-08-16 1984-08-16 無機質製品の押出製造法
JP170025/84 1984-08-16
JP143898/85 1985-07-02
JP14389885A JPS627655A (ja) 1985-07-02 1985-07-02 繊維補強無機質製品並びにその製造方法

Publications (3)

Publication Number Publication Date
EP0172028A2 true EP0172028A2 (fr) 1986-02-19
EP0172028A3 EP0172028A3 (en) 1988-07-13
EP0172028B1 EP0172028B1 (fr) 1991-01-23

Family

ID=26475494

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85305790A Expired - Lifetime EP0172028B1 (fr) 1984-08-16 1985-08-14 Objet inorganique renforcé par des fibres

Country Status (3)

Country Link
EP (1) EP0172028B1 (fr)
DE (1) DE3581451D1 (fr)
MY (1) MY101615A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992008858A1 (fr) * 1990-11-08 1992-05-29 Bellac Gerard Plaque combinee prefabriquee en brique et beton
EP0788422A1 (fr) * 1994-10-04 1997-08-13 E. Khashoggi Industries Introduction de filaments dans des compositons extrudees durcissant a l'eau
FR2795111A1 (fr) * 1999-06-21 2000-12-22 Weber & Broutin Sa Materiau renforce de construction, produit de revetement et plaque ou dalle en matiere moulee comprenant ledit materiau et leur procede de preparation
DE10063461A1 (de) * 2000-12-19 2002-07-04 Schoeck Bauteile Gmbh Formteil aus einem formbaren Baustoff, insbesondere als verlorene Schalung sowie Verfahren und Vorrichtung zur Herstellung derselben
DE102008040919A1 (de) * 2008-08-01 2010-02-04 MAX BÖGL Fertigteilwerke GmbH & Co. KG Verfahren zur Herstellung eines Betonbauteiles mit einer polymergetränkten textilen Bewehrung sowie Betonbauteil mit einer polymergetränkten textilen Bewehrung
EP3091135A1 (fr) * 2015-05-04 2016-11-09 Evonik Degussa GmbH Barre d'armature, procédé de fabrication et utilisation
WO2020193150A1 (fr) * 2019-03-25 2020-10-01 Technische Universität Dresden Procédé et dispositif de fabrication d'un élément en béton armé et élément en béton
WO2020249913A1 (fr) * 2019-06-14 2020-12-17 Ecole Nationale Des Ponts Et Chaussees Procédé et dispositif de fabrication d'un béton fibré anisotrope

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111206334A (zh) * 2020-03-18 2020-05-29 殷石 一种高性能合成纤维网

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB592890A (en) * 1944-10-26 1947-10-02 John Grant Jackson Improvements in and relating to structural members or bodies reinforced by structural elements
CA886637A (en) * 1968-10-21 1971-11-23 Martens Ernest Pile extruder
EP0002267A1 (fr) * 1977-12-02 1979-06-13 Hermann Schemel Procédé pour la fabrication d'éléments en béton renforcés par des fibres, et éléments obtenus selon ledit procédé
DE2805112A1 (de) * 1978-02-07 1979-08-09 Dietrich Walter Verfahren und vorrichtung zur herstellung von duennwandigen, einlagenbewehrten bauteilen
DE2821490A1 (de) * 1978-05-17 1979-11-22 Thumm & Co Bauplatte
JPS5585480A (en) * 1978-12-19 1980-06-27 Kubota Ltd Extrusion manufacture of inorganic product

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB592890A (en) * 1944-10-26 1947-10-02 John Grant Jackson Improvements in and relating to structural members or bodies reinforced by structural elements
CA886637A (en) * 1968-10-21 1971-11-23 Martens Ernest Pile extruder
EP0002267A1 (fr) * 1977-12-02 1979-06-13 Hermann Schemel Procédé pour la fabrication d'éléments en béton renforcés par des fibres, et éléments obtenus selon ledit procédé
DE2805112A1 (de) * 1978-02-07 1979-08-09 Dietrich Walter Verfahren und vorrichtung zur herstellung von duennwandigen, einlagenbewehrten bauteilen
DE2821490A1 (de) * 1978-05-17 1979-11-22 Thumm & Co Bauplatte
JPS5585480A (en) * 1978-12-19 1980-06-27 Kubota Ltd Extrusion manufacture of inorganic product

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DERWENT JAPANESE PATENT GAZETTE, Class A, no. 80-575333C, Derwent Publications Ltd, London, GB; & JP-A-55 85 480 (KUBOTA K.K.) 27-06-1980 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992008858A1 (fr) * 1990-11-08 1992-05-29 Bellac Gerard Plaque combinee prefabriquee en brique et beton
EP0788422A1 (fr) * 1994-10-04 1997-08-13 E. Khashoggi Industries Introduction de filaments dans des compositons extrudees durcissant a l'eau
EP0788422A4 (fr) * 1994-10-04 1998-04-01 Khashoggi E Ind Introduction de filaments dans des compositons extrudees durcissant a l'eau
FR2795111A1 (fr) * 1999-06-21 2000-12-22 Weber & Broutin Sa Materiau renforce de construction, produit de revetement et plaque ou dalle en matiere moulee comprenant ledit materiau et leur procede de preparation
DE10063461A1 (de) * 2000-12-19 2002-07-04 Schoeck Bauteile Gmbh Formteil aus einem formbaren Baustoff, insbesondere als verlorene Schalung sowie Verfahren und Vorrichtung zur Herstellung derselben
EP1217142A3 (fr) * 2000-12-19 2003-08-27 SCHÖCK BAUTEILE GmbH Produit fabriqué à partir d'un materiau moulable, servant en particulier de coffrage perdu ainsi que procédé et appareil pour sa production
DE102008040919A1 (de) * 2008-08-01 2010-02-04 MAX BÖGL Fertigteilwerke GmbH & Co. KG Verfahren zur Herstellung eines Betonbauteiles mit einer polymergetränkten textilen Bewehrung sowie Betonbauteil mit einer polymergetränkten textilen Bewehrung
WO2016177533A1 (fr) * 2015-05-04 2016-11-10 Evonik Degussa Gmbh Barre d'armature, procédé de fabrication et utilisation
EP3091135A1 (fr) * 2015-05-04 2016-11-09 Evonik Degussa GmbH Barre d'armature, procédé de fabrication et utilisation
TWI611081B (zh) * 2015-05-04 2018-01-11 贏創德固賽有限責任公司 併合式加強筋、製造方法及用途
WO2020193150A1 (fr) * 2019-03-25 2020-10-01 Technische Universität Dresden Procédé et dispositif de fabrication d'un élément en béton armé et élément en béton
CN113613855A (zh) * 2019-03-25 2021-11-05 德累斯顿理工大学 用于制造增强混凝土构件的方法和装置以及混凝土构件
WO2020249913A1 (fr) * 2019-06-14 2020-12-17 Ecole Nationale Des Ponts Et Chaussees Procédé et dispositif de fabrication d'un béton fibré anisotrope
FR3097152A1 (fr) * 2019-06-14 2020-12-18 Ecole Nationale Des Ponts Et Chaussees Procédé et dispositif de fabrication d’un béton fibré anisotrope
CN114174029A (zh) * 2019-06-14 2022-03-11 国家桥梁和道路学校 用于制造各向异性纤维混凝土的方法和装置
CN114174029B (zh) * 2019-06-14 2023-11-14 国家桥梁和道路学校 用于制造各向异性纤维混凝土的方法和装置

Also Published As

Publication number Publication date
EP0172028B1 (fr) 1991-01-23
DE3581451D1 (de) 1991-02-28
EP0172028A3 (en) 1988-07-13
MY101615A (en) 1991-12-17

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