| 摘要 |
METHOD AND SLIPFORMING EXTRUDER FOR CASTING CONCRETE SLABS A method and an apparatus for casting concrete elements from a concrete mix by means of slipform molding. According to the method, the concrete mix is extruded onto a bed. Pressure is generated into the concrete mix by means of a first set of exruder members and by compacting the concrete by moving at least one of the movable mold walls in a direction approximately parallel to its plane. The concrete mix is tamped into a more compacted form by means of splines, formed onto at least one of movable mold walls and protruding into the mix. The method and the apparatus in accordance with the invention achieves a high degree of compaction in the concrete mix by means of an uncomplicated apparatus without generating loud noise. |
