| 摘要 |
PROBLEM TO BE SOLVED: To provide a heavy metal elusion suppressing material (high sulfate slag cement) using dolomite inexpensively obtained in large amount as a raw material and having high heavy metals (particularly, 6-valent chromium) elution suppressing effect and also a function as a conventional blast furnace slag stimulant, and a curable composition containing the same. SOLUTION: The heavy metal elusion suppressing material contains semi-fired dolomite obtained by semi-firing the dolomite, wherein the semi-firing is carried out under a firing condition that magnesium carbonate in the dolomite is carbonated and calcium carbonate in the dolomite is not carbonated. The semi-fired dolomite contains magnesium oxide and calcium carbonate. The curable composition contains the heavy material elution suppressing material, blast furnace slag powder and anhydrous gypsum. COPYRIGHT: (C)2010,JPO&INPIT |
