GB665855A - Improvements in methods for the manufacture of moulded prestressed concrete parts - Google Patents

Improvements in methods for the manufacture of moulded prestressed concrete parts

Info

Publication number
GB665855A
GB665855A GB29826/48A GB2982648A GB665855A GB 665855 A GB665855 A GB 665855A GB 29826/48 A GB29826/48 A GB 29826/48A GB 2982648 A GB2982648 A GB 2982648A GB 665855 A GB665855 A GB 665855A
Authority
GB
United Kingdom
Prior art keywords
concrete
reinforcements
members
looped ends
manufacture
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
GB29826/48A
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.)
STUP PROCEDES FREYSSINET
Original Assignee
STUP PROCEDES FREYSSINET
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 STUP PROCEDES FREYSSINET filed Critical STUP PROCEDES FREYSSINET
Publication of GB665855A publication Critical patent/GB665855A/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
    • 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
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/22—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members assembled from preformed parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Abstract

665,855. Moulding reinforced concrete. SOC. TECHNIQUE POUR L'UTILISATION DE I A PRECONTRAINTE (S.T.U.P.) (PROCEDES FREYSSINET). Nov. 16, 1948 [April 6, 1948], No. 29826/48. Class 87(ii) [Also in Group X] Concrete members prestressed by means of elongated ring-shaped reinfcrcements 2 are manufactured by stretching the reinforcements by means of tension gear engaged in their looped ends 2a. 2b, casting the concrete around the rectilinear part of the reinforcements, removing the tension gear when this concrete has set and then casting the concrete forming the ends 23a, 23b of the member and embedding therein the looped ends 2a, 2b. The looped ends may be coated to avoid adhesion to the concrete and additional reinforcements 24 or 25 may be provided. The concrete forming the ends of the member may be made from expansive cement. The Specification as open to inspection under Sect. 91 also describes the use of rigid blocks in conjunction with elongated ring-shaped reinforcements in the manufacture of pre-stressed concrete members, the blocks being placed within the looped ends of the reinforcements which are then tensioned by gear acting on wire ropes engaging in the rigid blocks or with members projecting therefrom. A series of moulds may be arranged in end to end relationship so that a number of members may be manufactured simultaneously using only one tensioning apparatus. This subject-matter does not appear in the Specification as accepted.
GB29826/48A 1948-04-06 1948-11-16 Improvements in methods for the manufacture of moulded prestressed concrete parts Expired GB665855A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR665855X 1948-04-06

Publications (1)

Publication Number Publication Date
GB665855A true GB665855A (en) 1952-01-30

Family

ID=9013567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29826/48A Expired GB665855A (en) 1948-04-06 1948-11-16 Improvements in methods for the manufacture of moulded prestressed concrete parts

Country Status (1)

Country Link
GB (1) GB665855A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2948995A (en) * 1953-02-24 1960-08-16 Shell Oil Co Connections between reinforced, precast concrete structures and method of making same
US3290840A (en) * 1962-07-20 1966-12-13 Prescon Corp Method and means for chemically prestressing concrete

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2948995A (en) * 1953-02-24 1960-08-16 Shell Oil Co Connections between reinforced, precast concrete structures and method of making same
US3290840A (en) * 1962-07-20 1966-12-13 Prescon Corp Method and means for chemically prestressing concrete

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