EP0462937A1 - Equipment for making reinforced concrete slabs - Google Patents

Equipment for making reinforced concrete slabs Download PDF

Info

Publication number
EP0462937A1
EP0462937A1 EP91830030A EP91830030A EP0462937A1 EP 0462937 A1 EP0462937 A1 EP 0462937A1 EP 91830030 A EP91830030 A EP 91830030A EP 91830030 A EP91830030 A EP 91830030A EP 0462937 A1 EP0462937 A1 EP 0462937A1
Authority
EP
European Patent Office
Prior art keywords
equipment
vibrating device
cement mixture
cement
reinforcement network
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.)
Withdrawn
Application number
EP91830030A
Other languages
German (de)
English (en)
French (fr)
Inventor
Franco Teppa
Antonio Aitelli
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.)
ITALIANA LASTRE SpA Soc
Original Assignee
ITALIANA LASTRE SpA Soc
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 ITALIANA LASTRE SpA Soc filed Critical ITALIANA LASTRE SpA Soc
Publication of EP0462937A1 publication Critical patent/EP0462937A1/en
Withdrawn legal-status Critical Current

Links

Images

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

Definitions

  • the present invention relates to equipment for making concrete slabs with either a flat or corrugated surface, and including at least one fibrillated polypropylene network used for reinforcement and will subsequently be simply refered to as "reinforcement network”.
  • Concrete slabs, even multi-layered, which have at least one reinforcement network are already available, as well as equipment for making these slabs from a cement mixture and reinforcement networks usually made of fibrillated polypropylene.
  • Equipment which is already in use includes a conveyor belt made of felt or the like, the top surface of which forms a plane on which a cement mixture is placed by a distributing hopper and with the auxiliary of associated spreading/banding rollers.
  • a reinforcement network which is to be impregnated and bound by the cement mixture will be placed onto the cement layer, downstream form said rollers.
  • the impregnation of the reinforcement network is carried out through the use of a compacting guillotine, that being a blade with vertical movement, which forces the network to set in the cement matrix whilst a depression box removes the water form the mixture.
  • the procedure of distributing the cement mixture and of placing the reinforcement network is repeated along the conveyor belt for making multi-layered slabs when necessary.
  • the present invention aims to solve these problems by improving conditions of each reinforcement network in the cement matrix, eliminating or a least reducing the above mentioned inconveniences so as the achieve a constant and satisfactory result.
  • the equipment here proposed for the forming of concrete slabs with at least one reinforcement network made of fibrillated polypropylene comprises: a conveyor belt with a top surface used as a forming plane; at least one distributing hopper for depositing cement mixture onto said plane; and spreading/banding rollers associated with the hopper to smooth the layer of cement on said plane, and it is characterized by means which place at least one reinforcement network in the cement mixture, where there are said spreading rollers and at least one vibrating device so as to improve the impregnation of the reinforcement network before and/or after the smoothing by the said rollers of the cement matrix layer.
  • the conveyor belt (10 made for example of felt or the like, has an upper surface (11) on which the slabs (12) even multi-layered, are made from a cement mixture (13) and reinforcement networks (14).
  • the cement mixture (13) is put on the forming plane (11) through the use of a distributing hopper (15) and spreading/banding rollers (16, 16a).
  • a number of distributing hoppers (15) can be forseen along the forming plane (11) so as to form as many layers which overlap and make multi-layered slabs.
  • Reinforcement networks (14) designed to be impregnated in a corresponding layer of cement mixture are present wherever there is a hopper.
  • controlling means (17) feed and place the reinforcement networks (14) onto the cement mixture (13) in a space between the rollers (16, 16a), that is to say before the levelling off or smoothing of the layer to be formed.
  • the placing of the reinforcement network (14) is carried out with a high frequency vibrating device (18) which continuously moves the network, thus improving the impregnation of the cement matrix, before the completion and smoothing of the layer.
  • the vibrating device (18) advantageously includes a roller (19), perfically finned and operated by means capable of making it vibrate so as to continuously shake the network which has to be impregnated in the cement mixture. The operation is then completed with the smoothing of the cement matrix by the roller (16a) so as the assure a correct interaction between the reinforcement network and the cement matrix in which it is impregnated.
  • the operation can be continued with the use of a second similar vibrating device (20), placed downstream from the smoothing roller (16a) in the direction of the movement of the conveyor belt.
  • the second vibrating device can, when possible, further improve the impregnation of the reinforcement network.
EP91830030A 1990-06-20 1991-02-04 Equipment for making reinforced concrete slabs Withdrawn EP0462937A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT518590 1990-06-20
IT00518590A IT1242825B (it) 1990-06-20 1990-06-20 Attrezzatura per la formatura di lastre in cemento incorporanti almeno una struttura a rete di rinforzo

Publications (1)

Publication Number Publication Date
EP0462937A1 true EP0462937A1 (en) 1991-12-27

Family

ID=11119017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91830030A Withdrawn EP0462937A1 (en) 1990-06-20 1991-02-04 Equipment for making reinforced concrete slabs

Country Status (2)

Country Link
EP (1) EP0462937A1 (it)
IT (1) IT1242825B (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993016245A1 (en) * 1992-02-13 1993-08-19 Inge Bodil Elmstroem Soerensen Plate for sound absorption and method for manufacturing such a plate
CN103264443A (zh) * 2013-01-04 2013-08-28 王杏林 一种配筋水泥销键成型装置及其成型方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1584511A1 (de) * 1965-11-20 1969-11-20 Klaue Hermann Versteifungsgitter-Zufuehrung bei der Herstellung von armierten Bauplatten
EP0021362A1 (en) * 1979-06-21 1981-01-07 Montedison S.p.A. Process and device for the manufacture of reinforced concrete slabs
EP0095943A2 (en) * 1982-06-01 1983-12-07 United States Gypsum Company Method and apparatus for making reinforced cement board
GB2159066A (en) * 1984-05-25 1985-11-27 Aryan Group Limited A method of, and apparatus for, continuously forming sheeting and the manufacture of building panels from such sheeting
EP0192208A2 (en) * 1985-02-15 1986-08-27 RETIFLEX S.p.A. Device for the continuous production of manufactured articles reinforced with hydraulic binders mixes and the corresponding process

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1584511A1 (de) * 1965-11-20 1969-11-20 Klaue Hermann Versteifungsgitter-Zufuehrung bei der Herstellung von armierten Bauplatten
EP0021362A1 (en) * 1979-06-21 1981-01-07 Montedison S.p.A. Process and device for the manufacture of reinforced concrete slabs
EP0095943A2 (en) * 1982-06-01 1983-12-07 United States Gypsum Company Method and apparatus for making reinforced cement board
GB2159066A (en) * 1984-05-25 1985-11-27 Aryan Group Limited A method of, and apparatus for, continuously forming sheeting and the manufacture of building panels from such sheeting
EP0192208A2 (en) * 1985-02-15 1986-08-27 RETIFLEX S.p.A. Device for the continuous production of manufactured articles reinforced with hydraulic binders mixes and the corresponding process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993016245A1 (en) * 1992-02-13 1993-08-19 Inge Bodil Elmstroem Soerensen Plate for sound absorption and method for manufacturing such a plate
CN103264443A (zh) * 2013-01-04 2013-08-28 王杏林 一种配筋水泥销键成型装置及其成型方法
CN103264443B (zh) * 2013-01-04 2015-06-10 王杏林 一种配筋水泥销键成型装置及其成型方法

Also Published As

Publication number Publication date
IT1242825B (it) 1994-05-18
IT9005185A0 (it) 1990-06-20
IT9005185A1 (it) 1991-12-20

Similar Documents

Publication Publication Date Title
JPH0214883B2 (it)
US4793892A (en) Apparatus for producing reinforced cementitious panel webs
US6824715B2 (en) Method and apparatus for forming a laminated sheet material by spattering
US4504335A (en) Method for making reinforced cement board
DE69738589T2 (de) Verfahren zum Pressen von pulverförmigen Material
NL8003121A (nl) Werkwijze voor het vervaarigen van een bouwplaat.
EP0192208B1 (en) Device for the continuous production of manufactured articles reinforced with hydraulic binders mixes and the corresponding process
AU2002234429A1 (en) A method and apparatus for forming a laminated sheet material by spattering
ES486097A1 (es) Un procedimiento continuo para la fabricacion de articulos de materiales hidraulicamente fijados reforzados con fibras
ES8104738A1 (es) Procedimiento con su dispositivo de realizacion para la pro-duccion en continuo de manufacturados de hormigon reforzado
US4006049A (en) Pipe coating apparatus
US5520862A (en) Method of staged resonant frequency vibration of concrete
US5030287A (en) Cement mix and method for producing reinforced building sheets from a cement mix
EP0462937A1 (en) Equipment for making reinforced concrete slabs
HUT77972A (hu) Eljárás és berendezés szálerősítésű alakos testek hidraulikusan köthető masszából való előállítására
US4267136A (en) Production of thin, plastic-reinforced, hydraulically bound boards
ES8502026A1 (es) Procedimiento para la fabricacion en continuo de placas de cemento reforzadas con peliculas polimericas fibrilladas
US2004935A (en) Cementitious sheet
EP0152016B1 (en) Method and apparatus for the continuous production of reinforced manufactured cement products
RU2062701C1 (ru) Способ непрерывного формования армированных сетчатым полотном листов
US3275727A (en) Method of forming slotted panels
GB2034627A (en) Process for moulding reinforced articles from a hydraulic binder
SK13695A3 (en) Method of producing mineral-wool slabs and a device for carrying out the method
EP0258171A2 (en) Composite article and method and apparatus for producing same
JPS5927686B2 (ja) ガラス繊維入り強化セメントの連続製造方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19920630