GB665855A - Improvements in methods for the manufacture of moulded prestressed concrete parts - Google Patents
Improvements in methods for the manufacture of moulded prestressed concrete partsInfo
- 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
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.
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)
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 |
-
1948
- 1948-11-16 GB GB29826/48A patent/GB665855A/en not_active Expired
Cited By (2)
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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