Influence of various factors on leaching of hexavalent chromium from cement concrete

Yasuhiro Kuroda, Naoyuki Koshiishi

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    On the basis that cement concrete are used in various life cycle stages, we examined the leaching tests. In the case of using ordinary Portland cement, the leaching amount of hexavalent chromium was influenced by total chrome content and chemical component and the amount was decreased with the hydration. On the other hand, carbonation was found to cause the decomposition of cement hydrates and the release of fixed hexavalent chromium. Moreover, in the case of using Portland blast-furnace slag cement type B, the hexavalent chromium hardly leached, due to reduction action of blast-furnace slag.

    Original languageEnglish
    Pages (from-to)715-722
    Number of pages8
    JournalJournal of Structural and Construction Engineering
    Volume75
    Issue number650
    DOIs
    Publication statusPublished - 2010 Apr

    Fingerprint

    Leaching
    Chromium
    Cements
    Concretes
    Slags
    Slag cement
    Carbonation
    Portland cement
    Hydrates
    Hydration
    Life cycle
    Decomposition

    Keywords

    • Blast-fiirnace slag
    • Carbonization
    • Cement
    • Hexavalent chromium
    • Limestone powder
    • Total chrome content

    ASJC Scopus subject areas

    • Building and Construction
    • Architecture

    Cite this

    Influence of various factors on leaching of hexavalent chromium from cement concrete. / Kuroda, Yasuhiro; Koshiishi, Naoyuki.

    In: Journal of Structural and Construction Engineering, Vol. 75, No. 650, 04.2010, p. 715-722.

    Research output: Contribution to journalArticle

    @article{0e85bc4bac18428b8b54a8d621225211,
    title = "Influence of various factors on leaching of hexavalent chromium from cement concrete",
    abstract = "On the basis that cement concrete are used in various life cycle stages, we examined the leaching tests. In the case of using ordinary Portland cement, the leaching amount of hexavalent chromium was influenced by total chrome content and chemical component and the amount was decreased with the hydration. On the other hand, carbonation was found to cause the decomposition of cement hydrates and the release of fixed hexavalent chromium. Moreover, in the case of using Portland blast-furnace slag cement type B, the hexavalent chromium hardly leached, due to reduction action of blast-furnace slag.",
    keywords = "Blast-fiirnace slag, Carbonization, Cement, Hexavalent chromium, Limestone powder, Total chrome content",
    author = "Yasuhiro Kuroda and Naoyuki Koshiishi",
    year = "2010",
    month = "4",
    doi = "10.3130/aijs.75.715",
    language = "English",
    volume = "75",
    pages = "715--722",
    journal = "Journal of Structural and Construction Engineering",
    issn = "1340-4202",
    publisher = "Architectural Institute of Japan",
    number = "650",

    }

    TY - JOUR

    T1 - Influence of various factors on leaching of hexavalent chromium from cement concrete

    AU - Kuroda, Yasuhiro

    AU - Koshiishi, Naoyuki

    PY - 2010/4

    Y1 - 2010/4

    N2 - On the basis that cement concrete are used in various life cycle stages, we examined the leaching tests. In the case of using ordinary Portland cement, the leaching amount of hexavalent chromium was influenced by total chrome content and chemical component and the amount was decreased with the hydration. On the other hand, carbonation was found to cause the decomposition of cement hydrates and the release of fixed hexavalent chromium. Moreover, in the case of using Portland blast-furnace slag cement type B, the hexavalent chromium hardly leached, due to reduction action of blast-furnace slag.

    AB - On the basis that cement concrete are used in various life cycle stages, we examined the leaching tests. In the case of using ordinary Portland cement, the leaching amount of hexavalent chromium was influenced by total chrome content and chemical component and the amount was decreased with the hydration. On the other hand, carbonation was found to cause the decomposition of cement hydrates and the release of fixed hexavalent chromium. Moreover, in the case of using Portland blast-furnace slag cement type B, the hexavalent chromium hardly leached, due to reduction action of blast-furnace slag.

    KW - Blast-fiirnace slag

    KW - Carbonization

    KW - Cement

    KW - Hexavalent chromium

    KW - Limestone powder

    KW - Total chrome content

    UR - http://www.scopus.com/inward/record.url?scp=79956119687&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=79956119687&partnerID=8YFLogxK

    U2 - 10.3130/aijs.75.715

    DO - 10.3130/aijs.75.715

    M3 - Article

    AN - SCOPUS:79956119687

    VL - 75

    SP - 715

    EP - 722

    JO - Journal of Structural and Construction Engineering

    JF - Journal of Structural and Construction Engineering

    SN - 1340-4202

    IS - 650

    ER -