ULTRA RAPID HARDENING CLINKER, CEMENT COMPOSITION USING SAME, AND METHOD FOR PRODUCING SAME

摘要

To provide an ultra rapid hardening clinker capable of providing a rapid-hardening and high-fluidity grout mortar or concrete composition, which has high flowability, sufficient handling time, low temperature dependence and good surface smoothness, while having high reliability from the viewpoints of long-term strength and durability; and its production process. An ultra rapid hardening clinker comprising a CaO-Al 2 O 3 -SiO 2 compound, which has an amorphousness of at least 70%, and further has a true density after annealing at 1,000°C being smaller than before the annealing; and its production process.