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SUMMARY:Investigation of Hydrate Phase Development under Hydrothermal Cond
 itions in CAC-Bonded Refractory Castable - Part 3: Pore size distribution 
 - Thekla Stein
DTSTART;TZID=Europe/Berlin:20240919T142000
DTEND;TZID=Europe/Berlin:20240919T144000
DTSTAMP:20260808T194240Z
UID:pretalx-icr2024-CD3RNG@pretalx.com
DESCRIPTION:Drying and dehydrating of cement-bonded refractory castables a
 re critical steps before industrial implementation. During the heat-up the
  steam transfer to the hot side can be interrupted due to the internal pre
 ssure build-up. As a result\, the steam mass transport shifts towards the 
 cold side because of the lower internal pressure on that side. Thus\, the 
 vapor pressure within the material increases even more\, creating hydrothe
 rmal conditions and leading\, in the worst case\, to the feared spalling. 
 These conditions in the material can be reproduced on a laboratory scale b
 y using autoclave treatments.\nThe study\, conducted at CAC\, utilized two
  liquefiers and varied water content to achieve a deeper insight into the 
 development of hydrate phases under hydrothermal conditions. It is expecte
 d that hydrothermal treatment at different temperature levels will induce 
 varied crystal growth\, thereby affecting pore size distribution within ea
 ch material batch. The pore size distribution of the samples was determine
 d using mercury intrusion porosimetry. This paper is part of a broader inv
 estigation\, and its findings are correlated with additional research pres
 ented at the same conference\, focusing on hydrate phase characterization 
 through X-ray diffraction spectroscopy and Raman spectroscopy.
LOCATION:Brussels Hall
URL:https://pretalx.com/icr2024/talk/CD3RNG/
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