This regulation is formulated to regulate the construction and performance inspection of epoxy resin mortar to ensure the mass of the project. Epoxy resin mortar suitable for the repair and protection of concrete buildings in water conservancy and hydropower projects. The regulations include requirements for epoxy resin mortar materials, construction, quality control and inspection, safety and environment protection. The construction site should do a good job of personnel safety protection and take necessary environmental protection measures. In addition to complying with the provisions of this regulation, the construction of epoxy resin mortar in water conservancy and hydropower projects should also comply with the requirements of the relevant national standards in force. In the terminology section, the terms epoxy resin mortar, priming coating, thermal compatibility, shelf life, base layer, and crazing expansion temperature are defined for clear understanding when used in the specification.