CONCRETE COMPOSITION, CONCRETE STRUCTURE AND BLOCK FOR FISH REEF OR SPAWNING REEF

摘要

PPROBLEM TO BE SOLVED: To provide a concrete composition which enables a hardened concrete body having strength more excellent than that of the conventional hardened concrete body to be formed in spite of using solid waste as an aggregate. PSOLUTION: The concrete composition contains: cement; a coarse aggregate composed of one or more kinds of crushed matters selected from among shells, waste plastics, rubber waste, metal waste, glass waste, concrete waste, ceramic waste and rubble; a fine aggregate obtained by making one or more kinds selected from among coal ash, by-produced gypsum, incineration ash, cinders, dust, soot and dust, sludges, waste dumps and waste sand harmless; one or more kinds of blending materials selected from among blast furnace slag fine powder, fly ash, clinker ash and silica fume; and a reinforcement fiber selected from a glass fiber and a carbon fiber. By producing a block 10 for fish reefs from the concrete composition, the strength of the block 10 for fish reefs is improved by the reinforcement fiber in the concrete composition. PCOPYRIGHT: (C)2011,JPO&INPIT