Effect of Silica Crystalline State on Hydration Products of Tricalcium Silicate at High Temperatures.

The mechanical performance of grade G oil well cement stones declines significantly when subjected to temperatures exceeding 110 °C; the strategy to mitigate the impact of high temperatures is by incorporating siliceous materials. However, it is important to note that the crystalline properties of siliceous materials vary, leading to different effects on the temperature reduction. This study focuses on tricalcium silicate (CS), the primary component of oil well cement.