Abstract
This article is the continuous research on the successful attempt to utilize glass powder in ultra-high performance concrete. The previous study showed, that glass powder has a positive effect on the Portland cement hydration process, however, one problem was unable to overcome: about half the amount of unreacted clinker mineral remained in the composition, even when thermal treatment was applied. This research proposes a successful adaptation of the ultra-sonic dispersion method. The proposed method allowed to increase even further hydration process of the binder as well to develop a more favourable microstructure. Experiment research was investigated by XRD analysis, Chapelle, semi-adiabatic calorimetry, 29Si MAS NMR, mercury intrusion porosimetry, and compressive strength test methods. Results revealed, that high-frequency ultra-sonic dispersion can significantly increase the hydration degree of binder and the compressive strength up to 16%.
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