| 摘要 |
<p>This Portland cement clinker, which has a hydraulic modulus of 1.8-2.2, a silica modulus of 2.0-2.8, an iron modulus of 1.7-2.0, and a TiO2 content of 0.3-1.0 mass%, has an MnO content that is set in the range of at least 1.5 times that of TiO2 by mass. By means of such a composition, it is possible to increase the fluidity of the cement composition without a loss of strength of the cured cement body.</p> |
