COMPOSITION FOR HIGH STRENGTH CONCRETE FOR PREVENTING EXPLOSIVE RUPTURE

A composition for high-strength concrete for preventing explosive rupture is provided to prevent the explosive rupture of the high-strength concrete when a fire is generated, to control temperature inside the concrete, to increase a residual intensity after the fire breaks out by enhancing unity a force of the concrete structure and to secure safety to the fire of the ultra-high-rise structure. A composition for high-strength concrete comprises a binding material of 100 parts by weight, water 15 - 40 parts by weight and a chemical admixture 0.5-4.0 parts by weight. The binding material 100 parts by weight comprises cement 40 - 95 weight% and a blending material 5 - 60 weight%. The composition for the concrete additionally includes an organic synthetic fiber selected from an olefin group fiber including a polyethylene, a polyamide fiber including a nylon, a polyacryl fiber, a polyester fiber, a polypropylene fiber and a polyvinyl alcohol fiber. The blending material is selected from a group consisting of fly ash, blast furnace slag, silica fume, polymer, pozzolan and metakaolin. The chemical admixture is selected from a group consisting of an AE agent, a water reducing agent, an AE water reducing agent, a fluidifier and a promoter.