Leaching of hexavalent chromium from crushed concrete

Yasuhiro Kuroda, Naoyuki Koshiishi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We investigated the amount of hexavalent chromium Cr(VI), which was released from the concrete waste crushed at the intermediate disposal processing plants located round Tokyo, and also examined the influences of various test conditions upon the amount of Cr(VI) released. As a result, it was found that the amount of Cr(VI) released from some of the samples was beyond the prescribed level and that some of the influencing factors upon the leaching characteristics were identified. It was difficult to evaluate the environmental safety of crushed concrete by single batch test.

Original languageEnglish
Pages (from-to)2155-2161
Number of pages7
JournalJournal of Structural and Construction Engineering
Volume74
Issue number646
DOIs
Publication statusPublished - 2009 Dec

Keywords

  • Carbonization
  • Cement
  • Crushed concrete
  • Hexavalent chromium
  • Leaching test method

ASJC Scopus subject areas

  • Architecture
  • Building and Construction

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