<p>A fired product comprising 100 parts by weight of C2S, and a total amount of 10 to 100 parts by weight of C3A and C4AF; a cement admixture prepared through pulverization of the fired product; and a cement comprising 100 parts by weight of portland cement and 5 to 100 parts by weight of a pulverized product from the fired product. The exhibits excellent initial strength and also excellent long-term strength.</p>
