| 摘要 |
PROBLEM TO BE SOLVED: To provide a section repair material and a mortar composition that have excellent workability and can form a mortar hardened body having sufficient adhesion when united with a concrete structure and, especially, to provide a section repair material which has sufficient adhesion without including a polymer dispersion or re-emulsifying resin powder in repairing of a concrete structure of water treatment plant for water purification etc.SOLUTION: There is provided a section repair material including Portland cement, calcium carbonate fine powder, an inorganic expanding material, a fine aggregate, and a fluidizing agent, wherein the fluidizing agent includes a polycarboxylic acid-based copolymer and 20-80 mass% amorphous silica fine powder. |
