Calorimetry in the studies of cement hydration Setting and hardening of Portland cement-calcium aluminate cement mixtures
作者： Marek Gawlicki , Wiesława Nocuń-Wczelik , Łukasz Bąk
DOI: 10.1007/S10973-009-0158-5
关键词:
摘要: Calorimetry was applied to an investigation of the early hydration Portland cement (PC)–calcium aluminate (CAC) pastes. The heat evolution measurements were related strength tests on small cylindrical samples and standard mortar bars. Different heat-evolution profiles observed, depending calcium cement/Portland ratio. significant modification profile within a few hours after mixing with water observed generally in pastes containing up 25% CAC. On other hand CAC acceleration effect also obtained 10% 20% addition cement. As one could expect compressive flexural development more or less changed—reduced presence larger amount second component mixture, presumably because internal cracks generated by expansive sulfoaluminate formation.
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