| 摘要 |
<p>The present invention relates to a method of repairing and protecting a concrete structure. More specifically, the present invention provides an eco-friendly method of repairing and protecting a concrete structure which has an excellent durability due to having excellent water repellency and maintaining low absorption rate, having an excellent ability to repair and construct a concrete structure by reducing unit weight of mortar and improving initial and long-term attaching performance, and being eco-friendly by not using an organic solvent. Specifically, the method of repairing and protecting according to the present invention includes a water repellent mortar composition to improve water repellent effect and lower absorption rate to improve durability, thereby maintaining excellent initial and long-term durability without constructing a separate surface protection agent, being able to repair and construct without traffic regulation when constructing a bridge to which shock or vibration is applied by constituting a mortar composition using a lightweight aggregate, and lowering contractibility and expressing strength in a short time by using an expansion agent in which calcium sulfo-aluminate and plaster are mixed in an optimal ratio, and further improving long-term durability by including fiber and polyvinyl acetate (PVA) group powder resin in the mortar composition to improve long-term attaching performance and crack resistance.</p> |
