This research deals with the durability of micropolymer concrete (MPC) obtained by mixing an epoxy resin with fine and coarse\nsand particles. In particular the resistance of the micropolymer concrete to chemical solutions (citric acid C6H8O7, sulfuric acid\nH2SO4, and hydrochloric acid HCl) is investigated and compared to this of Portland cement microconcrete. Two MPC are tested.\nThe first is formulated with 9% mass fraction of epoxy polymer whereas calcareous fillers have been incorporated in the second\nformulation in order to reduce the percentage of the epoxy binder. It is shown that a microconcrete designed with 7% of epoxy, 10%\nof fillers, and 83% of aggregates is characterized by higher physical and mechanical properties than those of the MPC formulated\nwith 9% of epoxy binder.The mechanical properties of the resultingmaterials after their exposure to the three selected acid solutions\nat different durations were studied through compressive, three points bending and ultrasonic wave propagation tests. The obtained\nresults are compared to those of microcement concretes (MCC) tested under the same conditions as MPC. The results show\nthat both microepoxy polymer concretes exhibit better mechanical properties and highest resistance to chemical attack than the\nmicrocement concrete.
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