| 摘要 |
PURPOSE: A cast for composite material used to newly build a concrete structure is provided to semi-permanently use the material containing a core and to lighten the structure in order to improve workability of the building process. CONSTITUTION: The cast comprises sandwich panels(21) interposed by a core and hollowed steel frames. The core(31) has multiple micro holes(33) charged by a composite material(32) to form the sandwich panel(21). Alternatively, the panel(21) may be manufactured by sewing together the core and a fibrous mat by a reinforcing fiber and introducing the resin. The composite material(32) comprises fibrous reinforcing mat containing carbon fiber, glass fiber and polymeric mats and the resin composed of polymeric material. The core can include urethane foam, polystyrene foam, plyboard or panels made of used wood or used paper.
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