INORGANIC INJECTING MATERIALS AND REPAIRING METHOD OF CONCRETE STRUCTURE BY USING CEMENTITIOUS INORGANIC INJECTING MATERIALS

摘要

PURPOSE: An inorganic-based injecting material and a method for repairing a concrete structure using the same are provided to prevent the deterioration of the concrete structure by containing a high speed hardening agent, an anti abrasion agent, an adhesive, and a foaming agent. CONSTITUTION: An inorganic-based injecting material includes 40-50 weight% of fine powdered cement as a filler, 25-35 weight% of sodium powder as an anti abrasion agent, 10-20 weight% of aluminate as a high speed hardening agent, 5-10 weight% of polymerization polymer-based, sulfate-based plasticizing agent, 5-8 weight% of mica, and 3-5 weight% of fine powder clay minerals as an adhesive. The fine powder clay minerals are illite or bentonite. The inorganic-based injecting material further includes 1-5 weight% of a non-metallic foaming agent, 0.01-1 weight% of alumina powder as an expander, 0.1-0.4 weight% of a polycarboxylic acid-based dispersing agent, 0.01-0.5 weight% of mecellose as a thickening agent, and 0.5-2 weight% of polyvinyl alcohol as a polymer. The non-metallic foaming agent is selected from a diazoaminobenzene or sodium hydrogen carbonate group.