STUDY ON RELATIONSHIP BETWEEN PROPERTIES OF LIMESTONE POWDER AND FRESH PROPERTIES OF MORTAL

The purpose of this study is to investigate the effect or rheology of mortal that contains limestone powder. already known its chemical and physical properties, place of production and manufacturing process. The flowability of mortal with limestone powder is influenced by CaO content ratio, impurities of raw ore of limestone powder, impurities mixed with limestone powder on manufacturing process, Blaine surface area of limestone powder, replacement ratio of limestone powder. These factors change the restrained water of powder and absorption value of AE high-range water-reducing agent, and effected plastic viscosity and yield value of mortal. And the crystal size of raw ore affects fresh properties of mortal slightly. For flowability of mortal, limestone powder with small crystal size is better.