| 1. |
- Fagerlund, Göran, et al.
(författare)
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Internal frost attack - state of the art
- 1997
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Ingår i: Frost resistance of concrete : proceedings of the International RILEM Workshop on Resistance of Concrete to Freezing and Thawing With or Without De-icing Chemicals. - 0419229000 ; , s. 321-338
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Konferensbidrag (refereegranskat)
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| 2. |
- Fagerlund, Göran, et al.
(författare)
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On the service life of concrete exposed to frost action
- 1997
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Ingår i: Freeze-Thaw Durability of Concrete (RILEM Proceedings 30). - 0419200002 ; , s. 23-41
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- A theory is presented for the service life of concrete exposed to frost action. It is based on a separation of the frost resistance problem in two parts. Part 1, that is only a function of the material itself, and which is expressed in terms of a critical water content, or a degree of saturation, which is a "fracture value" being almost independent of the external conditions (except for the lowest temperature and the internal salt concentration). The critical degree of saturation is a consequence of the existence of a critical distance of water transfer during freezing. Some experimental data for the critical distance are given. Part 2, that is a function of the wetness of the environment, and which is expressed in terms of a time function of the capillary water uptake, and the long term water absorption in the air-pore system. Probably, it is also a function of the salt concentration outside and inside the concrete. It is shown in the paper, that the long term water absorption in pure water can often be described and extrapolated by simple time functions.
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| 3. |
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| 4. |
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Freeze-thaw and de-icing resistance of concrete : research seminar held in Lund, June 17, 1991 : RILEM committee TC-117 FDC
- 1992
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Proceedings (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
- Preface. The RILEM Committee TC-117 FDC -Freeze-Thaw and De-icing Resistance of Concrete:-started its workwith a first meeting that was hel d in Essen in May 1990. A second meeting was held in Brighton in November the same year. During both meetings, some differences in opinion were disc10sed concerning the effects of different externai and internai factors on the de-icing resistance and concerning the manner in which a relevant de-icing resistance test should be made. Therefore, it was decided that a one-day seminar should be held during the third meeting of the committee in order to givethe committee members the possibility to present their results and to express their opinion concerning the salt-scaling problem. This third meeting was held in Lund on June 27-28, 1991. The research seminar was held on the first day of the meeting. This report contains all the manuscripts that were delivered by the speakers af ter the seminar. Some oral presentations were not followed by written manuscripts, however. Some manuscripts included in this report have been or wlll be published elsewhere. We think that this collection of papers will be of considerable value for the future work within the RILEM Committee and also for other research workers which take interest in the salt-scaling problem
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| 5. |
- Lindmark, Sture, et al.
(författare)
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Moisture absorption from salt solutions in cement mortar discs during freezing
- 1997
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Ingår i: Frost resistance of Concrete : Resistance of concrete to freezing and thawing with or without de-icing chemicals International workshop on resistance of concrete to freezing and thawing with or without de-icing chemicals. - 0419229000 ; , s. 222-231
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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| 6. |
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