Attention should be paid to the application of epoxy emulsion cement mortar for concrete repair

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Attention should be paid to the use of epoxy emulsion cement mortar for repairing concrete. Epoxy emulsion cement mortar (abbreviated as EECM) is a material used for strengthening, protecting against corrosion, and providing waterproofing for concrete and cement products; it is composed of epoxy emulsion, cement, fillers, and admixtures. Due to its excellent effectiveness in concrete repair, it has gradually gained recognition within the industry. Epoxy emulsions disperse epoxy resins, and cement mortars that use these as their main bonding material possess the following key characteristics: first, they have excellent physical and mechanical properties, strong adhesion to various materials, and good resistance to water penetration, freezing, as well as corrosion by salts, alkalis, and weak acids ； Secondly, its coefficient of thermal expansion is similar to that of concrete, so it does not easily separate from these bonded substrates, offering good durability ； Thirdly, it can be applied to the surface of moist substrates without the need for drying; it can cure in humid environments or underwater ； Fourth, it is non-flammable and non-explosive, does not pollute the environment, and is harmless to human health ； Fifth, the cost is low, at only 30–50% of that of epoxy resin mortar ； Sixth, it is easy to operate and apply; the construction process is similar to that of ordinary cement mortar. It is also easy to clean—simply wash it with water. It has been widely used in engineering construction. Its main uses include: serving as a repair and reinforcement material for cement products and concrete ； Used as a bonding material for tiles, marble, and granite, as well as a anti-frosting material for marble and granite ； Can be used as a corrosion-resistant material in corrosive environments such as seawater, saline-alkali areas, and chemical plants ； Can be used as a waterproof and impermeable material for basements, tunnels, bathrooms, swimming pools, etc ； It can be used as an interface material for new and old concrete, as well as for new and old mortar.