METHOD FOR REPAIRING STRUCTURE USING CEMENT COMPOSITION HAVING POLYPROPYLENE TREATED BY OXYFLUORINATION AND GLASS POWDER

摘要

PURPOSE: A construction repairing method using cement composition which includes fluorinated polypropylene and glass powder is provided to enhance durability by preventing corrosion and deterioration of concrete structures. CONSTITUTION: A construction repairing method using cement composition comprises the following steps: removing deteriorated concrete(110); cleaning the deteriorated surface(120) with high pressure water; spreading structure reinforcing agent(130) on feculence removed surface; filling a cement composition(140) which contains fluidized polypropylene and glass frit on reinforcing admixture coating surface; and spreading surface finish material(150) on cross section in which cement composite is filled. The cement composite comprises 9-15 weight% of water, 18-28 weight% of cement, 54-64 weight% of aggregate, 2-4.5 weight% of polypropylene, and 2-4.5 weight% of glass frit.