FINE PARTICLES OF MINERAL, MIXED CEMENT USING THE FINE PARTICLES AND HARDENED BODY USING THE MIXED CEMENT

摘要

PROBLEM TO BE SOLVED: To improve the flowability of a cement paste, a mortar and a concrete when fine particles of mineral are used to be mixed with a cement as like a silica fume, and to develop high strength to the hardened body thereof.;SOLUTION: The fine particles of mineral according to the invention are obtained by finely powdering and classifying a mineral having a Mohs hardness of 1-5 or a rock containing 50 wt.% or more of the mineral and have an average particle diameter of 0.05-0.5 μm, wherein this average particle diameter is the particle diameter of cumulative 50% of the weight cumulative particle size distribution.;COPYRIGHT: (C)2007,JPO&INPIT