Comparison of alite-ye'elimite cement and ye'elimite OPC blends

• 作 者: LiXuerun;ShaoYuyue;XuWenlong;DouShang;ShenXiaodong;
• 机 构: State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and En
• 出 处: The 14th International Congress on the Chemistry of Cement (
• 发表日期: 2015年期

　　Yeelimite was well known for for its expansion and high early strength.There are two main ways to employ yeelimite into cement: (i) produce alite-yeelimite cement clinker and (ii) blend yeelimite (or yeelimite contained clinker such as belite-yeelimite cement clinker) and OPC.It is difficult to produce alite-yeelimite as the incompatibility of alite and yeelimite.Minerializer or thermal annealing was used to produce alite-yeelimite cement clinker by shrinking the formation gap of yeelimite or promoting the reformation of yeelimite during heat treatment.It is more convenient to obtain yeelimite-OPC blends by mixing yeelimite clinker with OPC.To date, results showed that the mixed yeelimite-OPC blends presented good expansion properties, but with limited improvement of the early strength of the cement blends.On the contrary,alite-yeelimite cement clinker required more steps for extra processing, but with excellent early strength and expansion properties.Herein this paper, we are trying to evaluate these two types of yeelimite-contained cement addressing the advantages and disadvantages.