| 摘要 |
PROBLEM TO BE SOLVED: To reduce the carbonization rate of a hydration-cured product. SOLUTION: This hydration-cured product contains (a) portlandite, (b) xonotlite.tobermorite, and (c) at least one kind of material selected from Portland cement, slaked lime, quartz sand, gypsum and alumina cement and magnesium hydroxide. Therein, the magnesium hydroxide is contained in an amount of 33-80 pts.wt. per 100 pts.wt. of the contained calcium compounds (converted into calcium hydroxide), and the magnesium hydroxide has an average particle diameter of <=10μm and a specific surface area of >=10 m2/g.
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