低碱高硅率高抗硫酸盐水泥熟料的研发及生产实践

Development and Production of Low-alkali and High Silica Ratio and High Sulfate-resistant Cement Clinker

通过采用资源劣化的自有矿山高硅低钙石灰石原料,进一步优选原燃材料,改进生料配料、加强水泥熟料质量监测和改善煅烧中控操作等措施,研发生产了碱含量约0.2%,硅酸率约3.50的低碱、高硅率、高抗硫酸盐水泥熟料,满足了易受硫酸盐侵蚀、冻融和干湿作用的海港、水利、地下工程建设要求。

This paper outlines the research and development process,as well as the production practice of a specialized cement.Despite the less-than-ideal quality of high-silica,low-calcium limestone sourced from our own mines,significant improvements were made through the meticulous selection of raw and fuel materials,refining the raw meal formulation,enhancing the quality control of cement clinker,and improving the operation of calcination control.These efforts led to the development and production of a new type of cement clinker with approximately 0.2%alkali content and a silica ratio of about 3.50.This low-alkali,high-silica,and high sulfate-resistant cement clinker fulfills the construction requirements for environments prone to sulfate erosion,freeze-thaw cycles,and alternating dry-wet conditions,such as harbors,water conservancy projects,and underground engineering.