Hostname: page-component-76fb5796d-22dnz Total loading time: 0 Render date: 2024-04-26T14:49:24.621Z Has data issue: false hasContentIssue false
  • English
  • Français

In situ high-temperature synchrotron powder diffraction study of the thermal decomposition of cement-asbestos

Published online by Cambridge University Press:  29 February 2012

Alessandro F. Gualtieri ,
Magdalena Lassinantti Gualtieri  and
Carlo Meneghini
Alessandro F. Gualtieri
Affiliation:
Department of Earth Sciences, University of Modena and Reggio Emilia, Modena, Italy
Magdalena Lassinantti Gualtieri
Affiliation:
Department of Earth Sciences, University of Modena and Reggio Emilia, Modena, Italy
Carlo Meneghini
Affiliation:
Physics Department, University of Roma Tre, Rome, Italy
Get access Rights & Permissions [Opens in a new window]

Abstract

Time-resolved synchrotron powder diffraction was used to follow the thermal transformation of cement-asbestos. Thermal transformation of asbestos fibers into nonfibrous crystalline phases is a promising solution for the elimination of these hazardous minerals. Time resolution offered by the use of an imaging plate detector with a high-brightness X-ray source allowed for the observation of metastable phases, commonly not detectable with conventional instrumentation. In addition, the use of a closed capillary as a sample holder mimicked the real, novel industrial reactor where cement-asbestos slates are sealed in a tunnel kiln. The changing gas atmosphere in the closed system was shown to affect the final composition of the recrystallized product. This study demonstrates the importance of advanced powder diffraction techniques in this field of applied research.

Keywords

asbestoschrysotilecement-asbestosin situ synchrotron powder diffractionthermal transformation
Type
Technical Articles
Information
Powder Diffraction , Volume 23 , Issue 4 , December 2008 , pp. 323 - 328
Copyright
Copyright © Cambridge University Press 2008

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Babic, B. R. (2006). “The use of cement fibre composites in prolonged wet environments,” in 10th International Inorganic-Bonded Fiber Composites Conference (Curran Associates, São Paulo), pp. 260–273.Google Scholar
Boccaccini, D. N., Leonelli, C., Rivasi, M. R., Romagnoli, M., Veronesi, P., Pellacani, G. C., and Boccaccini, A. R. (2007). “Recycling of microwave inertised asbestos containing waste in refractory materials,” J. Eur. Ceram. Soc.JECSER 27, 1855–1858.CrossRefGoogle Scholar
Bonen, D. and Sarkar, S. L. (1995). “The effects of simulated environmental attack on immobilization of heavy metals doped in cement-based materials,” J. Hazard. Mater.JHMAD9 40, 321–335.CrossRefGoogle Scholar
Bukowski, J. M. and Berger, R. L. (1979). “Reactivity and strength development of CO2 activated non-hydraulic calcium silicates,” Cem. Concr. Res.CCNRAI 9, 57–68.CrossRefGoogle Scholar
Cattaneo, A., Gualtieri, A. F., and Artioli, G. (2003). “Kinetic study of the dehydroxylation of chrysotile asbestos with temperature by in situ XRPD,” Phys. Chem. Miner.PCMIDU 30, 177–183.CrossRefGoogle Scholar
Datta, A. K., Samantaray, B. K., and Bhattacherjee, S. (1986). “Thermal transformation in a chrysotile asbestos,” Bull. Mater. Sci.BUMSDW 8, 497–503.CrossRefGoogle Scholar
De La Torre, A. G., Bruque, S., and Aranda, M. A. G. (2001). “Rietveld quantitative amorphous content analysis,” J. Appl. Crystallogr.JACGAR10.1107/S0021889801002485 34, 196–202.CrossRefGoogle Scholar
Dias, C. M. R., Cincotto, M. A., Savastano, H. Jr., and John, V. M. (2008). “Long-term aging of fiber-cement corrugated sheets—The effect of carbonation, leaching and acid rain,” Cem. Concr. Compos.CCOCEG 30, 255–265.CrossRefGoogle Scholar
Doll, R. (1955). “Mortality from lung cancer in asbestos workers,” Br. J. Ind. Med.BJIMAG 12, 81–86.Google ScholarPubMed
Fernández Bertos, M., Simons, S. J. R., Hills, C. D., and Carey, P. J. (2004). “A review of accelerated carbonation technology in the treatment of cement-based materials and sequestration of CO2,” J. Hazard. Mater.JHMAD9 112, 193–205.CrossRefGoogle ScholarPubMed
Grubb, M., Vrolijk, C., and Brack, D. (1999). The Kyoto Protocol: A Guide and Assessment (Royal Institute of International Affairs, London).Google Scholar
Gualtieri, A. F. (2000). “Accuracy of XRPD QPA using the combined Rietveld-RIR method,” J. Appl. Crystallogr.JACGAR 33, 267–278.CrossRefGoogle Scholar
Gualtieri, A. F. and Tartaglia, A. (2000). “Thermal decomposition of asbestos and recycling in traditional ceramics,” J. Eur. Ceram. Soc.JECSER 20, 1409–1418.CrossRefGoogle Scholar
Gualtieri, A. F. and Zanatto, I. (2007). “Industrial process for the direct temperature induced recrystallization of asbestos and/or mineral fibres containing waste products using a tunnel kiln and recycling,” European Patent No. EP07425495.Google Scholar
Gualtieri, A. F., Cavenati, C., Zanatto, I., Meloni, M., Elmi, G., and Lassinantti Gualtieri, M. (2008a). “The transformation sequence of cement-asbestos slates up to 1200 °C and safe recycling of the reaction product in stoneware tile mixtures,” J. Hazard. Mater.JHMAD9 152, 563–570.CrossRefGoogle Scholar
Gualtieri, A. F., Lassinantti Gualtieri, M., and Tonelli, M. (2008b). “In situ ESEM study of the thermal decomposition of chrysotile asbestos in view of safe recycling of the transformation product,” J. Hazard. Mater.JHMAD9 156, 260–266.CrossRefGoogle ScholarPubMed
Hammersley, A. P., Svensson, S. O., Hanfland, M., Fitch, A. N., and Hausermann, D. (1996). “Two-dimensional detector software: From real detector to idealised image or two-theta scan,” High Press. Res.HPRSEL10.1080/08957959608201408 14, 235–248.CrossRefGoogle Scholar
Jolicoeur, C. and Duchesne, D. (1981). “Infrared and thermogravimetric studies of the thermal degradation of chrysotile asbestos fibers: evidence for matrix effects,” Can. J. Chem.CJCHAG 59, 1521–1526.CrossRefGoogle Scholar
Larson, A. C. and Von Dreele, R. B. (2000). General Structure Analysis System (GSAS) (Report No. LAUR 86-748). Los Alamos, New Mexico, Los Alamos National Laboratory.Google Scholar
Leonelli, C., Veronesi, P., Boccaccini, D. N., Rivasi, M. R., Barbieri, L., Andreola, F., Lancellotti, I., Rabitti, D., and Pellacani, G. C. (2006). “Microwave thermal inertisation of asbestos containing waste and its recycling in traditional ceramics,” J. Hazard. Mater.JHMAD9 135, 149–155.CrossRefGoogle ScholarPubMed
Meneghini, C., Artioli, G., Balerna, A., Gualtieri, A. F., Norby, P., and Mobilio, S. (2001). “Multipurpose imaging-plate camera for in situ powder XRD at the GILDA beamline,” J. Synchrotron Radiat.JSYRES10.1107/S090904950100992X 8, 1162–1166.CrossRefGoogle Scholar
Paglietti, F., Zamengo, L., Polizzi, S., Giangrasso, M., and Fasciani, G. (2002). “Trattamento dei percolati delle discariche per RCA: Sperimentazione per una corretta depurazione,” Atti del Congresso L’Industria e l’amianto I nuovi materiali e le nuove tecnologie a dieci anni dalla Legge 257/1992, Rome, 26–28 November 2002, pp. 229–249.Google Scholar
Selikoff, I. J., Churg, J., and Hammond, E. C. (1964). “Asbestos exposure and neoplasia,” J. Am. Med. Assoc.JAMAAP 188, 22–26.CrossRefGoogle ScholarPubMed
Swamy, V. and Dubrovinsky, L. S. (1997). “Thermodynamic data for the phases in the CaSiO3 system,” Geochim. Cosmochim. ActaGCACAK10.1016/S0016-7037(96)00403-6 61, 1181–1191.CrossRefGoogle Scholar
Taylor, H. F. W. (1990) Cement Chemistry (Academic, London), p. 475.Google Scholar
Toby, B. H. (2001). “EXPGUI, a graphical user interface for GSAS,” J. Appl. Crystallogr.JACGAR10.1107/S0021889801002242 34, 210–213.CrossRefGoogle Scholar
Winburn, R. S., Grier, D. G., McCarthy, G. J., and Peterson, R. B. (2000). “Rietveld quantitative X-ray diffraction analysis of NIST fly ash standard reference materials,” Powder Diffr.PODIE2 15, 163–172.CrossRefGoogle Scholar