FR2391828A1 - Prefabricated hollow concrete slab for building - has cores removed before completion of hardening within external formwork - Google Patents

Prefabricated hollow concrete slab for building - has cores removed before completion of hardening within external formwork

Info

Publication number
FR2391828A1
FR2391828A1 FR7815052A FR7815052A FR2391828A1 FR 2391828 A1 FR2391828 A1 FR 2391828A1 FR 7815052 A FR7815052 A FR 7815052A FR 7815052 A FR7815052 A FR 7815052A FR 2391828 A1 FR2391828 A1 FR 2391828A1
Authority
FR
France
Prior art keywords
hardening
slabs
external formwork
building
concrete
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
FR7815052A
Other languages
French (fr)
Other versions
FR2391828B3 (en
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.)
Individual
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
Publication of FR2391828A1 publication Critical patent/FR2391828A1/en
Application granted granted Critical
Publication of FR2391828B3 publication Critical patent/FR2391828B3/fr
Granted legal-status Critical Current

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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

The prefabricated concrete building slabs have hollow chambers. The slabs have a large surface area and a a small number of chambers, whose width is greater than twice their height. The cores of variable dimension are held in external formwork and the concrete subjected to accelerated hardening. The core formwork (11) is removed from the hollow slabs before the full strength of concrete has been reached. The hollow slabs continue to harden up to their final strength before their removal from the external formwork which has travelling pallets. The cores are removed sideways from the concrete in the hardening tunnel (1) after which the hollow slabs continue to travel along the tunnel.
FR7815052A 1977-05-23 1978-05-22 Prefabricated hollow concrete slab for building - has cores removed before completion of hardening within external formwork Granted FR2391828A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772723113 DE2723113C2 (en) 1977-05-23 1977-05-23 Process for the production of concrete structural elements with cavities by means of one or more core formwork installed in an outer formwork

Publications (2)

Publication Number Publication Date
FR2391828A1 true FR2391828A1 (en) 1978-12-22
FR2391828B3 FR2391828B3 (en) 1981-01-16

Family

ID=6009609

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7815052A Granted FR2391828A1 (en) 1977-05-23 1978-05-22 Prefabricated hollow concrete slab for building - has cores removed before completion of hardening within external formwork

Country Status (2)

Country Link
DE (1) DE2723113C2 (en)
FR (1) FR2391828A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710122C2 (en) * 1986-09-04 1996-06-20 Kesting Klaus Lorenz Dr Ing Process and device for the production of reinforced concrete hollow slabs, in particular hollow slab slabs

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2453706C2 (en) * 1974-11-13 1982-08-26 WKR Patentverwertungsgesellschaft mbH, 6833 Waghäusel One-piece core formwork for the production of large-area components with large-width cavities

Also Published As

Publication number Publication date
DE2723113A1 (en) 1978-12-21
FR2391828B3 (en) 1981-01-16
DE2723113C2 (en) 1984-07-12

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Legal Events

Date Code Title Description
ST Notification of lapse