| abstract |
PROBLEM TO BE SOLVED: To provide sufficiently large fluidity immediately after mixing and change of fluidity with time when used as a raw material for paste, mortar, concrete, etc. even when a large amount of industrial waste and by-products are used. To provide a cement clinker that is suppressed and that can develop sufficient strength for a long time after curing. When calculated by the Borg equation, the amount of C 3 A is 7% by mass or less, the total amount of C 3 A and C 4 AF is 16 to 32% by mass, the amount of C 3 S is 12% by mass or more, C 2 Cement clinker whose S content is 25% by mass or more. [Selection figure] None |