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- Persson, Bertil
(author)
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Basic Deformations of High-Performance Concrete at Early Ages.
- 1997
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In: Nordic Concrete Research. - 0800-6377. ; 20, s. 59-74
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Journal article (other academic/artistic)abstract
- Creep and shrinkage are two major problems to be discussed in concrete design. Basic creep is studied during constant loading, temperature and moisture conditions, i.e. no exchange of moisture takes place to or from the specimen during the test period. In this paper an experimental and numerical study of basic creep of High Performance Concrete (HPC) is outlined. For this purpose cylinders and cubes were cast. Quasi-instantaneous deformation and basic creep including autogenous shrinkage were observed over 3 years. Analysis's of elastic modulus, early creep and long-term creep including autogenous shrinkage are presented. HPC autogenous shrinkage had a great influence on the results. The autogenous shrinkage in its turn is caused by the self-desiccation of HPC. The study was carried out in 1992 through 1994 at Lund Institute of Technology, Division of Building Materials, Lund, Sweden.
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| 5. |
- Persson, Bertil
(author)
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Brosystem mellan Honchu och Shikoku: Japanska rekordbroar
- 1999
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In: Bygg & teknik. - 0281-658X. ; , s. 56-60
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Journal article (other academic/artistic)abstract
- I denna artikel redovisas en sammanställning av ett stort antal broprojekt mellan den japanska huvudön Honchu och den söder därom belägna ön Shikoku. Först ges en bakgrund vad gäller andra stora hängbroar och snedkabelbroar i världen. Därefter belyses och specifieras de aktuella japanska broarna i detalj. Sammantaget är brosystemen mellan Honchu och Shikoku imponerande inte bara vad gäller spännvidd (maximalt 1.990 m för en av hängbroarna samt 890 m för en snedkabelbro) utan även beträffande antalet broar, totalt 19 stycken broar med stor spännvidd.
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| 6. |
- Persson, Bertil, et al.
(author)
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Creep and Shrinkage of Young or Mature High Performance Concrete
- 1999
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In: Proceedings of the 6th International Symposium on the Utilization of High Strength/ High Performance Concrete, Sandefjord, Norway, June 1999. - 8291341257 ; 2, s. 1272-1281
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Conference paper (other academic/artistic)
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| 9. |
- Persson, Bertil, et al.
(author)
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Early basic creep of high-performance concrete
- 1995
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In: Proceedings / International Symposium Non-destructive Testing in Civil Engineering (NDT-CE), September 26-28, 1995, Berlin, Germany. - 3931381021 ; 2, s. 949-958
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Conference paper (other academic/artistic)
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| 10. |
- Persson, Bertil, et al.
(author)
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(Early) Basic Creep of High-Performance Concrete
- 1996
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In: Fourth International symposium on the Utilization of High Strength/High Performance Concrete, 29-31 May 1996, Paris, France. - 2859782605 ; 2, s. 405-414
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Conference paper (other academic/artistic)
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