| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately measure a content of alkaline earth metal oxides in steelmaking slag, which cause cracking, dusting, breakage, and the like of a molding due to volume expansion resulting from a hydration reaction when using steelmaking slag as the molding. <P>SOLUTION: A mixture of compounds containing calcium or magnesium, except a calcium oxide (CaO) or a magnesium oxide (MgO), and steelmaking slag is preliminarily produced, and a solid nuclear magnetic resonance spectrum of<SP POS="POST">43</SP>Ca or<SP POS="POST">25</SP>Mg in the produced mixture is measured, and a content of alkaline earth metal oxides existing in the steelmaking slag is quantified on the basis of the measured solid nuclear magnetic resonance spectrum. <P>COPYRIGHT: (C)2012,JPO&INPIT |
