The present invention is environment-friendly water-based epoxy resin mortar composition as it relates to a surface construction method of the concrete structure using, more particularly an organic compound of the release essentially used in the conventional in epoxy resin mortar composition is used as a concrete floor finish a non-reactive diluent by the use of an aqueous epoxy resin mortar composition and the epoxy resin mortar composition is formed as by imparting an appropriate viscosity by the interaction of the coagulant with water and an emulsifier without using at all to a method for the construction of concrete surfaces. ; If the construction of the concrete surface by using a water-based epoxy resin mortar composition according to the invention the workability significantly improved can be constructed is finished as a shorter process and as well as to maintain the mechanical properties such as strength over the conventional level existing by being not to use an organic compound that was used essentially environmentally friendly, can significantly reduce the production cost. ; Epoxy resin, the mortar (mortar), concrete, primers, emulsions, aqueous
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