Add time:09/09/2019         Source:sciencedirect.com

This study addresses the hydration mechanism of a P.II 52.5R cement in the presence of Triisopropanolamine (cas 122-20-3) (TIPA), glucose or both. Calorimetry tests showed that the interaction effect of TIPA and glucose significantly enhanced the degree of hydration of the cement after 7 days. X-ray diffraction analysis confirmed that the addition of glucose promoted C4AF dissolution by TIPA. The accelerated C4AF hydration yielded a reduced CH content and an increased amount of chemically combined water. Due to the delayed acceleration effect of glucose, the hydrate products were characterised by a high surface area. Furthermore, our results showed that the addition of TIPA promotes the formation of carboaluminate and the AFm phase when the limestone is in the presence of cement.

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