Skip to main content
SpringerLink
Log in

X-ray diffraction analysis of oxidizable sulphides in aggregates used in concrete

  • Published:
Materials and Structures Aims and scope Submit manuscript

Abstract

This paper describes the X-ray diffraction results of investigations aimed at finding the most suitable experimental conditions for improving the detection limit of pyrite (FeS2) and pyrrhotite (Fe 1−x S) contained in aggregates. The type of radiation, the system of detection, aperture and detector slits etc. are discussed. A method of quantitative analysis using fluorite (CaF2) as an internal standard is suggested and the selection of pyrite and pyrrhotite reflections is discussed.

Resume

On décrit ici les résultats de la diffraction X dans des recherches destinées à découvrir les conditions expérimentales les mieux appropriées pour améliorer la limite de détection de pyrite (FeS2) et pyrrhotite (Fe1−xS) contenues dans des granulats. On examine le type de rayonnement, le système de détection, les caractéristiques expérimentales, etc. On suggère une méthode d’analyse quantitative utilisant le fluorite (CaF2) comme norme interne et on discute le choix des angles de réflexion de pyrite et de pyrrhotite.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. UNE 7245, ‘Determinación de los compuestos de azufre contenidos en los áridos’Asociación española de normalización y certificación (AENOR, 1971).

  2. Chinchón, J. S., ‘Influencia de la degradación de sulfuros de hierro contenidos en los áridos en la durabilidad del hormigón. Análisis de compuestos de azufre por DRX y FRX’, Tesis Doctoral, Universidad de Barcelona (1989).

  3. UNE 83120, ‘Aridos para hormigones. Determinación cuantitativa de los compuestos de azufre’ (Asociación española de normalización y certificación (AENOR), 1988).

  4. Chinchón, J. S., López-Soler, A., Travería, A. and Vaquer, R., ‘XRF analysis of sulphur in aggregates used in concrete by the addition of Li2SO4’,Mater. Struct. 24 (1991) 13–14.

    Google Scholar 

  5. Chinchón, J. S., López-Soler, A., Querol, X. and Vaquer, R., ‘Determination of pyrrhotite (Fe1−xS) occurring in aggregates by X-ray fluorescence’,Cement Concr. Res. 20 (1990) 394–397.

    Article  Google Scholar 

  6. Chinchón, J. S., López-Soler, A., Travería, A. and Vaquer, R., ‘X-Ray fluorescence analysis of samples with elemental sulphur. Effect of sulphur sublimation’,X-ray Spectrom. 17 (1988) 217–218.

    Article  Google Scholar 

  7. National Bureau of Standards, ‘Standard X-ray diffraction powder patterns’, Monograph 25 (United States Government Printing Office, Washington, DC, 1971).

    Google Scholar 

  8. Chung, F. H., ‘Quantitative interpretation of X-ray diffraction patterns of mixtures. I: Matrix-flushing method for quantitative multi-component analysis’,J. Appl. Crystallogr. 7 (1974) 519–525.

    Article  Google Scholar 

  9. Idem, ‘Quantitative interpretation of X-ray diffraction patterns of mixtures. II: Adiabatic principle of X-ray diffraction analysis of mixtures’,ibid. 7 (1974) 526–531.

    Article  Google Scholar 

  10. Idem, ‘Quantitative interpretation of X-ray diffraction patterns of mixtures. III: Simultaneous determination of a set of reference intensities’,ibid. 8 (1975) 17–19.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Departamento de Ingeniería de la Construcción, Universitat Politècnica de Catalunya, C/ Gran Capità s/n, Mòdul B 1, 08034, Barcelona, Spain

    J. S. Chinchón & E. Vázquez

  2. Instituto ‘Jaume Almera’, C/ Martí i Franqués s/n, 08028, Barcelona, Spain

    A. Alastuey & A. López-Soler

Authors
  1. J. S. Chinchón
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. E. Vázquez
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. Alastuey
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. A. López-Soler
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Chinchón, J.S., Vázquez, E., Alastuey, A. et al. X-ray diffraction analysis of oxidizable sulphides in aggregates used in concrete. Materials and Structures 26, 24–29 (1993). https://doi.org/10.1007/BF02472234

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02472234

Keywords

Search

Navigation