Impact of cement composition on the adsorption of hydrogen sulphide and its subsequent oxidation onto cementitious material surfaces
作者： Anaïs Grandclerc , Marielle Guéguen-Minerbe , Issam Nour , Patrick Dangla , Thierry Chaussadent
DOI: 10.1016/J.CONBUILDMAT.2017.07.003
关键词:
摘要: Abstract Mortars based on different compositions (cast with calcium aluminate cement (CAC), ordinary Portland (CEM I), blended III, CEM IV, V) and super sulphated (SSC)) were exposed to gaseous H 2 S. The most soluble phases from lead the presence of ions in a water layer formed mortar surface these provoke acceleration or slowdown S adsorption. After that, oxidizes into elemental sulphur then gypsum crystals. types only affect kinetics oxidation reactions.
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