The congregation of West Cannon Baptist Church in Belmont, Michigan looked to a new gospel in construction when it outgrew the old church building. Even though a conventional plan had been drawn, a member familiar with construction brought in some unorthodox ideas which led to redesign based on a shotcreted arch with earth cover.
The proprietary building system offers formwork and reinforcement in one piece. The modular steel plates are die-stamped from 14-gauge steel, with the metal cut and corrugated to interlock with the applied concrete which may be either shotcrete or a low-slump mix. The precurved sheets are assembled at the jobsite, generally using special wedges at the lap joints. Shoring support is maintained during construction as the framework of plates is covered with concrete to form a reinforced concrete load-bearing shell.