The Investigation about Gel Properties of New Composite Materials with Meta-kaolin

Abstract

Abstract As one of the most promising building materials, the composite materials of metakaolin have a wide range of applications and excellent performance. Owing to the lack of research on the early-high-strength characteristics of MK, this article tries to make some meaningful attempts. In terms of the characteristics of hydration calcium silicate with gelation performance, this paper studied the preparation of metakaolin, the type of hydrothermal synthesis products, and the corresponding hydration dehydration phase and its rehydration characteristics. Through the exploration and research of the metakaolin hydrothermal synthetic process, it has prepared a new type of early-high-strength concrete regulator and opened up a new way for the effective application of kaolin. The preparation process, structure, and properties of MK-based concrete performance regulators were systematically investigated by XRD and SEM analysis. The macroscopic properties of the MK-based concrete performance regulator were discussed through coagulation time, hydration heat, and compressive strength performance.