Abstract
In sulfate-laden environments, salt weathering presents a serious threat to structures. Numerous explorations have focused on weathering due to partial immersion in a single-sulfate solution, but there are few studies concerning salt weathering attacks due to combined salt weathering. In this work, mortar specimens were partially immersed in a mixed solution of sodium sulfate (Na2SO4) and sodium chloride (NaCl) under conditions of daily temperature and humidity changes to explore the effect of sodium chloride on salt weathering. The results showed that the main destruction regime of the dry portion (the upper part) of mortars is due to sulfate physical attack and a high concentration of chloride salt can improve the resistance of mortars against sodium sulfate salt weathering by the formation of a sodium chloride crystal protective layer on the specimen surface. It was also found that protecting the upper part of the mortar with an epoxy resin coating can protect mortars from salt weathering.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call