▎ 摘　　要

NOVELTY - Concrete surface protective material (20) composition comprises 30-60 wt.% ordinary cement or slag cement, 3-15 wt.% aggregate powder, 5-20 wt.% slag fine powder, 4-15 wt.% acrylic polymer, 25-50 wt.% filler made of at least one of silica, calcium carbonate (CaCO3), titanium dioxide (TiO2) and fine clay minerals, 0.01-3 wt.% at least one nano carbon material selected from carbon nanoplates, plate-shaped graphite, and graphene, 0.5-3wt.% stabilizer consisting of at least one of calcium-based, barium-based, zinc-based, and magnesium-based stearate, 0.5-3 wt.% anionic or nonionic dispersant, 0.01-3 wt.% boron nitride (BN) and 0.2-1 wt.% fluidizing agent. USE - Used as concrete surface protective material composition. ADVANTAGE - The composition suppresses corrosion of reinforcing bars in concrete buildings due to neutralization and extend the life of concrete structures, improves adhesion to the deterioration repair site and secures breathability; prevents formation of mold and various fungi and provides excellent hardness to the concrete structure after construction; has high adhesion/wetability to the ground surface of the repair object, secures excellent workability and shortens working time. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for concrete structure repair method. DESCRIPTION OF DRAWING(S) - The drawing shows a simplified schematic diagram of a concrete structure repaired by a concrete structure repair method. Surface protective material (20)