Blended Cements with Kaolinitic Calcined Clays: Study of the Immobilization of Cr(VI)

  • Mónica A. Trezza
  • Alejandra TironiEmail author
  • Edgardo F. Irassar
  • Alberto N. Scian
Conference paper
Part of the RILEM Bookseries book series (RILEM, volume 10)


Numerous investigations on the immobilization of chromium in cement-based systems were carried out in the recent years. The aim of this study is to analyze the influence of the crystallinity of kaolinite used to make calcined kaolinitic clay when are used in pastes for immobilization of Cr(VI). In previous study, it was found that the reactivity of kaolinitic calcined clays used as partial replacement of Portland cement largely depends on the crystallinity of kaolinite in the raw clay. Calcined clays obtained from raw materials containing kaolinite with disordered structure presents a very high pozzolanic activity allowing high-percentage replacement (30 %) in blended cements. In this study, pastes of blended cement with 15 % and 30 % by mass of two kaolinitic calcined clays (order and disorder structure of kaolinite) were elaborated using a solution of 5000 ppm of K2Cr2O7 and a solution-to-cementing material ratio of 0.50. The immobilization efficiency was measurement by lixiviation test and the modifications in the hydrated phases was studied by X-ray diffraction and SEM/EDS analysis. The results shown that kaolinitic calcined clay from ordered kaolinite was more efficient than disordered kaolinite to retention of Cr(VI), reaching values higher than that of PC-paste.


Portland Cement Pozzolanic Reaction Blended Cement Hydrated Phase Kaolinitic Clay 
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  1. 1.
    Pera, J., Thevenin, G., Chabannet, M.: Desing of e novel system allowing the selection of an adequate binder for solidification/stabilization of waste. Cem. Concr. Res. 27(10), 1533–1542 (1997)CrossRefGoogle Scholar
  2. 2.
    Laforest, G., Duchesne, J.: Immobiliationof chromium (VI) evaluated by binding isotherms for ground granulated blast slag and ordinary Portland cement. Cem. Concr. Res. 35(12), 2322–2332 (2005)CrossRefGoogle Scholar
  3. 3.
    Tantawy, M.A., El-Roudi, A.M., Salem, A.A.: Immobilization of Cr(VI) in bagasse ash blended cement pastes. Con. Build. Mat 31, 218–223 (2012)CrossRefGoogle Scholar
  4. 4.
    Singyoung, S., Songsiriritthigul, P., Asavapisit, S., Kajitvichyanukul, P.: Chromium behavior during cement-production processes: a clinkerization, hydration and leaching study. J. Haz. Mat 191, 296–305 (2011)CrossRefGoogle Scholar
  5. 5.
    Wang, S., Vipulanandam, C.: Solidification/stabilization of Cr(VI) with cement: leachability and XRD analyses. Cem. Concr. Res. 30(3), 385–389 (2000)CrossRefGoogle Scholar
  6. 6.
    Trezza, M.A., Ferraiuelo, M.F.: Hydration study of limestone blended cement in the presence of hazardous wastes containing Cr(VI). Cem. Concr. Res. 33(7), 1039–1045 (2003)CrossRefGoogle Scholar
  7. 7.
    Bensted, J., Prakash Varma, S.: Studies of ettringite and its derivatives. Cem. Tech 2(3), 73–77 (1971)Google Scholar
  8. 8.
    Bensted, J., Prakash Varma, S.: Studies of ettringite and its derivatives. Part II- chromate substitution. Silic. Ind. 37(12), 315–318 (1972)Google Scholar
  9. 9.
    Perkins, R.B., Palmer, C.D.: Solubility of Ca6[Al(OH)6]2(CrO4)3.26H2O, the chromate analog of ettringite; 5–75 °C. Ap. Geochem. 15, 1203–1218 (2000)CrossRefGoogle Scholar
  10. 10.
    Lin, Ch-K, Chen, J.-N., Lin, Ch-Ch.: An NMR and XRD study of solidification/stabilization of chromium with Portland cement and β-C2S. J. Haz. Mat 48(1–3), 137–147 (1996)CrossRefGoogle Scholar
  11. 11.
    Tironi, A., Castellano, C.C., Bonavetti, V.L., Trezza, M.A., Scian, A.N., Irassar, E.F.: Kaolinitic calcined clays—Portland cement system: hydration and properties. Con. Build. Mat 64, 215–221 (2014)CrossRefGoogle Scholar
  12. 12.
    Tironi, A., Trezza, M.A., Scian, A.N., Irassar, E.F.: Potential use of Argentine kaolinitic clays as pozzolanic material. Appl. Clay Sci. 101, 468–476 (2014)CrossRefGoogle Scholar
  13. 13.
    EPA Extraction Procedure (EP) Toxicity method and structural integrity test, method 1310A, revision 1 (1992)Google Scholar
  14. 14.
    Omotoso, O.E., Ivey, D.G., Mikula, R.: Quantitative X-Ray diffraction analysis of chromium (III) doped tricalcium silicate pastes. Cem. Concr. Res. 26(9), 1369–1379 (1996)CrossRefGoogle Scholar
  15. 15.
    Norma IRAM1514-1: Determinación del contenido de Cr(VI) soluble en agua (2012)Google Scholar

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© RILEM 2015

Authors and Affiliations

  • Mónica A. Trezza
    • 1
  • Alejandra Tironi
    • 1
    Email author
  • Edgardo F. Irassar
    • 1
  • Alberto N. Scian
    • 2
  1. 1.Facultad de IngenieríaCIFICEN (CONICET –UNCPBA)OlavarriaArgentina
  2. 2.Centro de Tecnología de Recursos Minerales y Cerámica CONICET La Plata—UNLPLa PlataArgentina

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