Chemically resistant polymeric jointing grout with environmental impact

Abstract

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

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