Permanent shuttering with drainage for concrete slab consists of compound elements with shuttering wall and integral drainage channel

摘要

Stretched shuttering elements of permanent material are installed abutting to define the area to be concreted. The elements comprise of a shuttering wall (31) facing that area, and a closed drainage channel (32) integral with it. The channel extends across the length of the shuttering element on the outer side of the wall, and has rows of drainage holes (324...) in its outer side (322). Top (323) and base (321) of the drainage channel have aligned holes for ground anchors (41).