EP0172028B1 - Faserverstärkter anorganischer Körper - Google Patents

Faserverstärkter anorganischer Körper Download PDF

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Publication number
EP0172028B1
EP0172028B1 EP85305790A EP85305790A EP0172028B1 EP 0172028 B1 EP0172028 B1 EP 0172028B1 EP 85305790 A EP85305790 A EP 85305790A EP 85305790 A EP85305790 A EP 85305790A EP 0172028 B1 EP0172028 B1 EP 0172028B1
Authority
EP
European Patent Office
Prior art keywords
fibre
inorganic composite
inorganic
moulded
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.)
Expired
Application number
EP85305790A
Other languages
English (en)
French (fr)
Other versions
EP0172028A2 (de
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/de
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/de
Expired 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.
  • JP-A-55-85480 there is known a process for manufacturing a fibre-reinforced inorganic body, as disclosed in JP-A-55-85480, in which a fibre body composed of threads is impregnated with an inorganic composite mainly composed of cement, that is the same in kind of material as an inorganic composite to be moulded by extrusion.
  • the fibre body is then embedded in the inorganic composite to be moulded by extrusion, thereafter the inorganic composite including the fibre body is extruded, and thereafter the resulting extruded body is subjected to a hardening treatment.
  • 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..
  • a process for manufacturing a fibre-reinforced inorganic body wherein a 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 moulded, and the inorganic composite and the bonding agent of the resulting moulded body are hardened.
  • This invention has for its purpose to provide a process which produces a fibre-reinforced inorganic body which is improved in its bending strength.
  • a process for manufacturing a fibre-reinforced inorganic body wherein 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 moulded, and the inorganic composite and the bonding agent of the resulting moulded body are hardened, characterised in that the inorganic composite including the fibre body is moulded by extrusion, and in that the fibre body is a braided body formed by interweaving a plurality of threads.
  • the present invention also provides 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, characterised in that the fibre body is a braided body formed by interweaving a plurality of the threads.
  • 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, fly- ash 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 plurality of threads (of the same kind or of two or more different kinds) are formed into a braided body by interweaving the plurality of threads.
  • 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.
  • 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 braided fibre body, and in the case of the use of a plurality of braided 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
  • 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.
  • Short fibres 21 are mixed in the inorganic composite 5 and there is used as the fibre body a braided fibre body 7 (as shown in Figure 2) 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.
  • the 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, each formed by interweaving the plurality of strands 22 of total aromatic polyamide, are passed through a 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 inorganic composite 5, which has the short fibres 21 dispersed therein and the disposed fibre bodies 7 embedded therein 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 shown in Figure 3.
  • the resulting extruded body 15 is moved forwards by a conveyor 14 and is cut by a cutter 16 to pieces of a predetermined length in sequence.
  • the bodies 15 thus cut are placed on a 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.
  • a bonding agent composed of 100 parts by weight of bisphenol Alepichloro- hydrin type epoxy resin ("DER 332, Dow Chemical") and 14 parts by weight of triethylenetetramine in an impregnating ratio of 40 parts thereof to 100 parts of the foregoing fibre body.
  • a braided fibre body comprising a plurality of interwoven threads is impregnated with a bonding agent
  • the same is embedded in an inorganic composite
  • the inorganic composite including the braided 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)

Claims (5)

1. Verfahren zur Herstellung eines faserverstärkten anorganischen Körpers, wobei wenigstens ein aus einer Vielzahl von Fäden (13) bestehender Faserkörper (7) mit einem Bindemittel imprägniert und in einen anorganischen Werkstoff (5) eingebettet wird, der anorganische Werkstoff (5) einschließlich des Faserkörpers (7) verformt wird sowie der anorganische Werkstoff (5) und das Bindemittel (11) im erhaltenen verformten Körper gehärtet werden,
dadurch gekennzeichnet,
daß der anorganische Werkstoff (5) einschließlich des Faserkörpers (7) durch Extrusion verformt wird und daß der Faserkörper (7) ein durch Verweben einer Vielzahl von Fäden (22) gebildeter geflochtener Körper ist.
2. Verfahren gemäß Anspruch 1, worin die Fäden (22) eine große Zugfestigkeit aufweisen.
3. Verfahren gemäß Anspruch 1 oder 2, worin der anorganische Werkstoff (5) kurze Fasern (21) enthält.
4. Faserverstärkter anorganischer Körper aus einem verformten anorganischen Werkstoff (5), wenigstens einem Faserkörper (7), der aus einer Vielzahl von Fäden (22) gebildet und in dem verformten anorganischen Werkstoff (5) eingebettet ist, sowie einem im Faserkörper (7) enthaltenen gehärteten Bindemittel (11) zur Bildung einer Bindung zwischen verformtem anorganischen Werkstoff (5) und Faserkörper (7),
dadurch gekennzeichnet,
daß der Faserkörper (7) ein durch Verweben einer Vielzahl von Fäden (22) gebildeter geflochtener Körper ist.
5. Körper gemäß Anspruch 4, wobei der verformte anorganische Werkstoff (5) kurze Fasern (21) darin fein verteilt enthält.
EP85305790A 1984-08-16 1985-08-14 Faserverstärkter anorganischer Körper Expired EP0172028B1 (de)

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
JP170025/84 1984-08-16
JP17002584A JPS6149803A (ja) 1984-08-16 1984-08-16 無機質製品の押出製造法
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 EP0172028A2 (de) 1986-02-19
EP0172028A3 EP0172028A3 (en) 1988-07-13
EP0172028B1 true EP0172028B1 (de) 1991-01-23

Family

ID=26475494

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85305790A Expired EP0172028B1 (de) 1984-08-16 1985-08-14 Faserverstärkter anorganischer Körper

Country Status (3)

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

Cited By (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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH680460A5 (de) * 1990-11-08 1992-08-31 Gerard Bellac
RU2157757C2 (ru) * 1994-10-04 2000-10-20 Э. Хашогги Индастриз Экструдируемое промышленное изделие (варианты) и способ его изготовления (варианты)
FR2795111B1 (fr) * 1999-06-21 2002-06-28 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 (de) * 2015-05-04 2016-11-09 Evonik Degussa GmbH Bewehrungsstab, verfahren zur herstellung und verwendung
DE102019107555A1 (de) * 2019-03-25 2020-10-01 Technische Universität Dresden Verfahren und Vorrichtung zur Herstellung und Ablage eines textilen Bewehrungsstrangs für ein Betonteil
FR3097152B1 (fr) * 2019-06-14 2023-10-20 Ecole Nat Des Ponts Et Chaussees Procédé et dispositif de fabrication d’un béton fibré anisotrope

Family Cites Families (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
DE2753858C3 (de) * 1977-12-02 1980-10-23 Hermann 7622 Schiltach Schemel Verfahren zum Herstellen von faserbewehrten Betonformteilen und nach diesem Verfahren hergestellte Formteile
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
JPS5940791B2 (ja) * 1978-12-19 1984-10-02 株式会社クボタ 無機質製品の押出製造方法

Cited By (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

Also Published As

Publication number Publication date
EP0172028A2 (de) 1986-02-19
MY101615A (en) 1991-12-17
EP0172028A3 (en) 1988-07-13
DE3581451D1 (de) 1991-02-28

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