Shell system for molding cast concrete walls has spacers between the hard foam wall boards with end plates structured to lock into the swallowtail grooves between ribs at the wall board surfaces for high flexibility

摘要

The wall shell system, for molding cast concrete walls, has two hard foam facing wall boards (WP) held together by spacers. The surfaces facing each other have vertical ribs (WR) with swallowtail grooves (WN), in a horizontally repeating structure. The spacers have end plates (EP), flanking the center section (VP), with a relief surface structure which complements the wall board surface structures. A number of vertical members (ES) grip into the grooves between neighboring ribs, to be pushed into the rib structure of the facing wall board.