Admixtures / Mixed Materials, Heat Of Hydration Of Portland Cement

This paper study on effects of water cement ratio, setting control agents and mineral admixture on the heat of hydration and its rate, and mechanism of cement hydration. The author does careful research on effects of WH II super set-retarding agent on the hydration, the heat of hydration, the setting time and strength of portland cement, with the methods of XRD, DTA and SEM. The results show that fitful amount of WH II super set-retarding agent is effective on retarding the setting and improving the strength of portland cement.