Abstract
In this paper, ground calcium carbonate (GCC) was selected to improve the properties of epoxy resin mortar (ERM). The results indicated that the flexural strength and ratio of flexural strength to compressive strength of ERM got great increase by incorporation of GCC. At the same time, the impact toughness of ERM had greatly improved with GCC. To some extent, it increased with increasing addition of GCC. Scanning electron microscope (SEM) analysis illustrated the toughening mechanism of ERM filled with GCC. Through orthogonal experiment, the optimal combinations of the process parameters for a high-performance repair mortar are obtained.
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