Abstract
This paper deals with the study of the chemical resistance of polymeric jointing grouts intended for the jointing of elements that are permanently stressed by an aggressive chemical environment, such as elements made of cast basalt, placed in the concrete structures of sewerages. The paper researches three types of epoxy jointing grouts designed for conditions where there is a chemically aggressive environment. The optimal amount of hazardous waste (end product and cement bypass dusts) was incorporated in the developed jointing grouts. As part of chemical resistance monitoring, changes in selected physical and mechanical properties of jointing grouts were monitored and evaluated, including microstructure monitoring after chemical stress. The scanning electron microscopy (SEM) was used for the explanation of bonding effects of the polymer matrix with the filler It was found that the use of hazardous waste is highly effective in polymeric grouts with high chemical resistance; there was no noticeable reduction in the chemical resistance of these jointing grouts compared to the reference grouts.
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