| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hexavalent chromium elution inhibitor and a heavy metal elution-inhibiting construction method that can surely suppress elution of hexavalent chromium to an allowable value or lower, does not require the change of the construction method to comparatively expensive other construction methods such as a piling method and permits economical rapid execution. <P>SOLUTION: The heavy metal elution inhibitor comprises a reducing agent for converting hexavalent chromium in a known cement or a cement-solidifying material to trivalent chromium, a reducing auxiliary agent endowed with functions for maintaining a reducing atmosphere preventing trivalent chromium from changing to hexavalent chromium and, if required, a fixing agent endowed with fixing functions for chemically fixing chromium reduced to a trivalent state. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
