FR2209319A5 - Concrete slabs with low density cores - using inverted hollow cores to ensure core locations - Google Patents

Concrete slabs with low density cores - using inverted hollow cores to ensure core locations

Info

Publication number
FR2209319A5
FR2209319A5 FR7243155A FR7243155A FR2209319A5 FR 2209319 A5 FR2209319 A5 FR 2209319A5 FR 7243155 A FR7243155 A FR 7243155A FR 7243155 A FR7243155 A FR 7243155A FR 2209319 A5 FR2209319 A5 FR 2209319A5
Authority
FR
France
Prior art keywords
concrete
cores
low density
inserts
layer
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
FR7243155A
Other languages
French (fr)
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.)
Bouygues SA
Original Assignee
Bouygues SA
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 Bouygues SA filed Critical Bouygues SA
Priority to FR7243155A priority Critical patent/FR2209319A5/en
Application granted granted Critical
Publication of FR2209319A5 publication Critical patent/FR2209319A5/en
Expired 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
    • B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
    • B28B19/003—Machines or methods for applying the material to surfaces to form a permanent layer thereon to insulating material
    • 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
    • B28B23/0068—Embedding lost cores

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

Slabs made by casting apreliminary layer of concrete, placeing sets of light weight blocks on the cast layer and then covering the inserts with a further layer of concrete where the insert blocks resemble dishes or troughs placed with the rims of the cavity embedded in the initially cast layer. The concrete layers may be bridged at intervals by metal or concrete ties passing between the inserts, and the insert blocks should be of an insulating material, pref. polystyrene or polyurethane. The edges of the hollow blocks inhibit unwanted shifting of the inserts during the second stage casting of the concrete.
FR7243155A 1972-12-05 1972-12-05 Concrete slabs with low density cores - using inverted hollow cores to ensure core locations Expired FR2209319A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7243155A FR2209319A5 (en) 1972-12-05 1972-12-05 Concrete slabs with low density cores - using inverted hollow cores to ensure core locations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7243155A FR2209319A5 (en) 1972-12-05 1972-12-05 Concrete slabs with low density cores - using inverted hollow cores to ensure core locations

Publications (1)

Publication Number Publication Date
FR2209319A5 true FR2209319A5 (en) 1974-06-28

Family

ID=9108199

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7243155A Expired FR2209319A5 (en) 1972-12-05 1972-12-05 Concrete slabs with low density cores - using inverted hollow cores to ensure core locations

Country Status (1)

Country Link
FR (1) FR2209319A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3418117A1 (en) * 1984-05-16 1985-11-21 Hubert 7620 Wolfach Hasenfratz Process for producing a back-ventilated construction board
US5372769A (en) * 1990-10-24 1994-12-13 Cbt, Concrete Building Technology Ab Method of producing concrete elements

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3418117A1 (en) * 1984-05-16 1985-11-21 Hubert 7620 Wolfach Hasenfratz Process for producing a back-ventilated construction board
US5372769A (en) * 1990-10-24 1994-12-13 Cbt, Concrete Building Technology Ab Method of producing concrete elements

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse