| abstract |
The present invention relates to a mortar composition for preventing salting and freezing and thawing, and a method for repairing a section of a concrete structure damaged by road surface, neutralization, or chemical damage caused by salting using the mortar composition. The present invention also provides a mortar composition for preventing the freezing and thawing of a concrete structure and a method for repairing a section of a concrete structure damaged by road corrosion, neutralization, or chemical attack. The mortar composition for preventing salting and freezing and thawing according to the present invention and the maintenance method of the concrete structure damaged by the road side, neutralization, and chemical damage due to salting using the mortar composition of the present invention can remove deterioration parts of the concrete structure caused by salting and freeze- The mortar composition comprises 20 to 45 wt% of a cement component, 3 to 15 wt% of a hardwood material, 5 to 20 wt% of a mixed material, 25 to 20 wt% of a silica filler, A water-repellent agent 0.1 to 3.0 wt%, a water-repellent agent 0.1 to 3.0 wt%, a water-repellent agent 0.1 to 3.0 wt%, a water-repellent agent 0.1 to 3.0 wt% 0.2 to 2.0 wt% of a property improving material, and 0.005 to 1.0 wt% of graphene oxide. |