Calcium oxide clinker was produced by calcining calcium carbonate under high temperature and vacuum in a mufle furnace.Then XRD was used to analyze the mineral composition of the calcined clinker,SEM was used to observe and analyze the surface morphology and structure of the solid material.The static crushing agent was prepared using calcined clinker,and the optimal ratio of static crushing agent was given.Then,the effects of water cement ratio,environmental temperature,and mixing water temperature on the hydration reaction of static crushing agent were studied.The results show that as the calcination temperature increases,the degree of decomposition of calcium carbonate into calcium oxide increases,the contraction of calcium oxide crystals becomes tighter,the micropores of crystals gradually disappear and become denser,the apparent density increases,and the reaction activity decreases.As the water cement ratio increases,the peak temperature of the hydration reaction of the static crushing agent in the tested steel pipe first increases and then decreases,and increases with the increase of environmental temperature and mixing water temperature.However,the trend of hydration reaction temperature of static crushing agent over time is generally consistent.
关键词
氧化钙/XRD矿物组成分析/SEM/水化反应/静态破碎剂
Key words
calcium oxide/XRD mineral composition analysis/SEM/hydration reaction/static crushing agent
维普
万方数据