Czasopismo
2007
|
R. 12/74, nr 5
|
248-260
Tytuł artykułu
Autorzy
Wybrane pełne teksty z tego czasopisma
Warianty tytułu
Thaumasite - part 2: Orygins, ramifications and discussions related to the 'Thaumasite Expert Group Report'
Języki publikacji
Abstrakty
Omówiono raport Grupy Ekspertów do spraw thaumasytu i przedyskutowano czynniki decydujące o zagrożeniu tym rodzajem korozji siarczanowej w przypadku budowli naziemnych jak i podziemnych. Przedstawiono wpływ dodatku do cementu popiołów lotnych i mielonego żużla granulowanego na zapobieganie korozji siarczanowej z utworzeniem thaumasytu. Także przedyskutowano najnowsze pozycje literaturowe omawiające badania w tym zakresie. Artykuł kończy się praktycznymi zaleceniami dotyczącymi korozji siarczanowej w warunkach zagrożonych powstawaniem thaumasytu.
The report of Thaumasite Export Group is presented and the risk factors of thaumasite sulphate attack for under-ground as well as above ground constructions are discussed. The role of pfa and ggbs content in cement on combatting TSA is largely presented. Also recent studies which were published in technical literature are described. The paper ends with practical guidance concerning thaumasite sulphate attack.
Czasopismo
Rocznik
Tom
Strony
248-260
Opis fizyczny
Bibliogr. 32 poz.
Twórcy
autor
- Materials Chemistry Centre, UCL, London
Bibliografia
- 1. J. Bensted: Thaumasite - Part 1: The route to current understanding. Cement-Wapno-Beton (in press).
- 2. Department of Erwironment, Transport and the Regions: The thaumasite form of sulphate attack: Risks, diagnosis, remedial works and guidance on new construction. Report of the Thaumasite Expert Group, DETR, London (1999).
- 3. J. Bensted: Thaumasite - confusion surrounding the terms TF and TSA. Concrete 40, (9), 94 (2006).
- 4. N.J. Crammond: The thaumasite form of sulphate attack in the UK. Cement & Concrete Composites 25 (8), 809-818 (2003).
- 5. S. Hartshorn, J. Sharp and R.N. Swamy: Thaumasite formation in Portland limestone cement pastes. Cement and Concrete Research 29, 1331-1340 (1999).
- 6. P. Nixon and I. Longworth: Thaumasite Expert Group Report: Review after three years experience. Concrete 37, No. 4, 22-25 (2003).
- 7. Building Research Establishment: BRE Special Digest 1: Concrete in aggressive ground, 3rd Edition. CRC, London (2005).
- 8. British Cement Association: BCA Guide: Specifying concrete to BS EN 206-1/BS 8500: Concrete resistant to chemical attack. BCA, Crowthorne (2001).
- 9. British Standards Institution: BS 8500:2002: Concrete - Complementary British Standard to BS EN 206-1. Part 1: Method of specifying and guidance for the specifier. Part 2: Specification for constituent materials and concrete. BSI, London (2002).
- 10. J. Bensted: Thaumasite - three-year review. Concrete 37, No. 8, 7 (2003).
- 11. S. Chladzynski: Wpływ obniżonej temperatury na odporność zapraw z cementów z dodatkami mineralnymi na korozje siarczanowa. / Influence of Iowered temperature on the sulphate corrosion resistance of cement mortars with minerał additions. Cement-Wapno-Beton No. 4, 204-214 (2005).
- 12. S. Chladzynski: Wpływ obniżonej temperatury na odporność zapraw z cementów z dodatkami mineralnymi na działanie wody morskiej. / Influence of lowered temperature on the seawater resistance of cement mortars with minerał additions. Cement-Wapno-Beton No. 5, 283-294 (2005).
- 13. I. Sims and S.A. Huntley: The thaumasite form of sulphate attack - breaking the rules. Cement & Concrete Composites 26, 837-844 (2004).
- 14. G. Collett, N.J. Crammond, R.N. Swamy and J.H. Sharp: The role of carbon dioxide in the formation of thaumasite. Cement and Concrete Research 34 (9), 1599-1612 (2004).
- 15. Q. Zhou, J. Hill, E.A. Byars, J.C. Cripps, C.J. Lynsdale and J.H. Sharp: The role of pH in thaumasite sulphate attack. Cement and Concrete Research 36(1), 160-170(2006).
- 16. J. Bensted: Mechanism of thaumasite sulphate attack in cements, mortars and concretes. Zement-Kalk-Gips International 53 (12), 704-709 (2000).
- 17. J. Bensted: Probierni che si verificano nell'identificazione della thaumasite. / Problems arising in the identification of thaumasite. II Cemento 74, No. 3, 81-90(1977).
- 18. J. Bensted and S.P. Varma: Studies of thaumasite - Part II. Silicates Industriels 39 (1), 11-19 (1974).
- 19. G. Bissert and F. Liebau: Die Kristallstruktur von monoklinem Siliziumphosphat SiP2O7AIII. Acta Crystallographica 26B, 233-240 (1970).
- 20. F. Liebau: Zur Kristallchemie der sechsfach koordinierten Siliziums. Bulletin de la Société Française de Minéralogie et Cristallographie 94, 239-249(1971).
- 21. H. Mayer: Die Kristallstruktur von Si5O(PO4)6. Monatshefte für Chemie 105,46-54(1974).
- 22. T.L. Weeding, B.H.W.S. de Jong, W.S. Weeman and B.G. Aitken: Silicon coordination changes from 4-fold to 6-fold on devitrification of silicon phosphate glass. Nature (London) 318, 352-353 (1985).
- 23. W. Hinz: Silicat-Lexikon, p.794. VEB Akademie-Verlag, Berlin (1985).
- 24. J. Bensted: Problemi che si verificano nell`identificazione della thaumasite. / Problems arising in the identification of thaumasite. II Cemento 74 (3), 81-90 (1977).
- 25. J.A. Ray: Things petrographic examination can and cannot do with concrete. Part 2. Some basics and guidelines. Proceedings of the 22nd International Conference on Cement Microscopy, Montreal, Quebec, Canada, 29 April to 4 May, 2000, pp. 65-78. International Cement Microscopy Association, Metropolis, Illinois, USA (2000).
- 26. S. Hartshorn: Thaumasite - a brief guide for engineers. Concrete 32 (8), 24-27(1998).
- 27. J. Bensted: Direct, woodfordite and other possible formation routes. Cement & Concrete Composites 25, 873-877 (2003).
- 28. U. Ludwig and S. Mehr: Destruction of historic buildings by the formation of ettringite or thaumasite. 8th International Congress on the Chemistry of Cement, Rio de Janeiro, 1986, Vol. V, Communications, pp. 181 -188. FINEP, Rio de Janeiro (1988).
- 29. G. Baronio and M. Berra: Alterazione di un calcestruzzo con formazione di thaumasite - analisi delle cause del degrado. / Concrete deterioration with the formation of thaumasite - analysis of the causes. II Cemento 83 (3), 169-184 (1986).
- 30. M. Collepardi: Degradation and restoration of masonry walls of historic buildings. Materials and Structures 23, 81-102 (1990).
- 31. M. Collepardi: Thaumasite formation and deterioration in historic buildings. Cement and Concrete Composites 21 (2), 147-154 (1999).
- 32. V. Tesch and B. Middendorf: Occurrence of thaumasite in gypsum lime mortars for restoration. Cement and Concrete Research 36 (8), 1516-1522 (2006).
Typ dokumentu
Bibliografia
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