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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: An Evaluation of Methods for Measuring Heavy Metal Leaching from Concrete Structures
Author(s): K. Kawai and T. Kaya
Publication: Special Publication
Appears on pages(s): 211-226
Keywords: concrete; heavy metals; leaching; structures
Abstract:In terms of recycling of materials and effective uses of resources, the application of solid wastes to materials for concrete has been discussed. If the wastes are used for materials for concrete, the leaching behavior of ions from concrete as well as durability of concrete is a serious issue, especially as the behavior of heavy metal ions in concrete is concerned. Currently, however, there is no method for evaluating the leaching behavior of heavy metal ions that is appropriate for concrete structures. Since samples are crushed and ground in testing methods used commonly now, almost all of the contents of heavy metal ions are measured including the metal ions that may not be leached out of concrete because of hydration reaction with cement. We should evaluate leaching behavior of heavy metal ions not from a powder sample of concrete but from a massive body such as a concrete structure. In this study, testing methods for determining the leaching behavior of heavy metal ions from concrete structures are investigated and a method for prospecting long term leaching of heavy metal ions from concrete is discussed.
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