A Study on the Understanding and Application of White Portland Cement

Abstract

Research direction of Cement manufacturers is that the trend of high-performance clinker production, which has increased the content of Alite (C<sub>3</sub>S) that dominate the initial strength of cement is intensifying. The content of Ferrite(C<sub>4</sub>AF) mineral of White Portland Cement is less than 1%. In the case of White Portland Cement, when applied to concrete, it is free to choose the color of the concrete structure and exhibits excellent aesthetics and reflectance, so it is highly valuable as an architectural and civil engineering material, but it has a disadvantage of being more expensive than Ordinary Portland Cement, and there is a limit to using the circulating resources used in Cement clinker firing process to express white. The characteristics and color differences of cement differ depending on the difference between the raw material and the manufacturing method. When manufacturing white cement, fuel used to implement white and materials with low heavy metals such as Fe, Cr, and Mn in the raw material are used, cooled to a reducing atmosphere and the cooling method produces white cement clinker by water cooling. Even in process facilities, more careful selection is required when selecting materials for grinding facilities and refractories in the firing process.