POROSITY FISHING REEF

摘要

A porous artificial fish reef is provided to foster plankton in marine environment, to prevent the oxidation of the fish reef and to form better fishing ground by employing electro arc furnace oxidizing slag in the artificial fish reef. A porous artificial fish reef is prepared by a process comprising: mixing water of 100-150kg/m^3, cement of 290-380kg/m^3, aggregate having size of 13-2.5mm of 1590-1950kg/m^3, high strength admixture of 30-120kg/m^3, CSA expander of 3-4kg/m^3, pigment of 10-40kg/m^3 and at most 0.3% of retardant; molding the mixture in a mold; and curing the mixture. The aggregate is the electro arc furnace oxidizing slag which is generated from a steelmaking process using pig iron in electro arc furnace. The mold has a form of a cube. For the curing, the mixture is subjected to an open stowage for 28 days or subjected to a steam chamber.