| 摘要 |
<p>A fired product which comprises 100 parts by weight of C2S, 10 to 100 parts by weight of C2AS, and 20 parts or less of C3S; a cement admixture which is prepared by crushing the fired product; and a cement which comprises 100 parts by weight of portland cement and 5 to 100 parts by weight of a crushed product of the fired product. The use of the cement admixture prepared by crushing the fired product allows the production of a cement exhibiting low heat of hydration and good fluidity.</p> |
