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Study on Cr(VI) Leaching from Cement and Cement Composites

Author

Listed:
  • Adriana Estokova

    (Department of Material Engineering, Faculty of Civil Engineering, Institute of Environmental Engineering, Technical University of Kosice, Vysokoskolska 4, Kosice 04200, Slovakia)

  • Lenka Palascakova

    (Department of Material Engineering, Faculty of Civil Engineering, Institute of Environmental Engineering, Technical University of Kosice, Vysokoskolska 4, Kosice 04200, Slovakia)

  • Maria Kanuchova

    (Faculty of Mining, Ecology, Process Control and Geotechnology, Institute of Montaneous Sciences and Environmental Protection, Technical University of Kosice, Park Komenskeho 19, Kosice 04384, Slovakia)

Abstract

This paper reports an experimental study on hexavalent chromium leaching from cement samples and cement composites containing silica fume and zeolite additions that were subjected to various leaching agents. The water-soluble Cr(VI) concentrations in cements ranged from 0.2 to 3.2 mg/kg and represented only 1.8% of the total chromium content. The presence of chromium compounds with both chromium oxidation states of III and VI was detected in the cement samples by X-ray photoelectron spectroscopy (XPS). Leaching tests were performed in a Britton-Robinson buffer to simulate natural conditions and showed increased dissolution of Cr(VI) up to 6 mg/kg. The highest amount of leached hexavalent chromium was detected after leaching in HCl. The findings revealed that the leaching of chromium from cements was higher by 55–80% than that from the cement composites. A minimum concentration was observed for all cement samples when studying the relationship between the soluble Cr(VI) and the cement storage time.

Suggested Citation

  • Adriana Estokova & Lenka Palascakova & Maria Kanuchova, 2018. "Study on Cr(VI) Leaching from Cement and Cement Composites," IJERPH, MDPI, vol. 15(4), pages 1-13, April.
    • Handle: RePEc:gam:jijerp:v:15:y:2018:i:4:p:824-:d:142507
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    References listed on IDEAS

    as
    1. Eleni Sazakli & Cristina M. Villanueva & Manolis Kogevinas & Kyriakos Maltezis & Athanasia Mouzaki & Michalis Leotsinidis, 2014. "Chromium in Drinking Water: Association with Biomarkers of Exposure and Effect," IJERPH, MDPI, vol. 11(10), pages 1-21, September.
    2. Peng Shi & Jun Xiao & Yafeng Wang & Liding Chen, 2014. "Assessment of Ecological and Human Health Risks of Heavy Metal Contamination in Agriculture Soils Disturbed by Pipeline Construction," IJERPH, MDPI, vol. 11(3), pages 1-17, February.
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    Cited by:

    1. Fan Shi & Dehong Jiang & Junrong Ji & Jinsheng Yan & Huxing Chen, 2022. "Effects of Alkali on Water Soluble Hexavalent Chromium in Ordinary Portland Cement," IJERPH, MDPI, vol. 19(8), pages 1-12, April.
    2. Linfeng Jin & Liyuan Chai & Weichun Yang & Haiying Wang & Liyuan Zhang, 2019. "Two-Dimensional Titanium Carbides (Ti 3 C 2 T x ) Functionalized by Poly(m-phenylenediamine) for Efficient Adsorption and Reduction of Hexavalent Chromium," IJERPH, MDPI, vol. 17(1), pages 1-13, December.

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