| 摘要 |
A lightweight, permanent form system includes a plurality of GRC forms having a one or more open cavities that form a continuous interconnecting void within and throughout the plurality of GRC forms when assembled on-site to form a permanent form assembly. The continuous interconnecting void is configured to receive pourable concrete which creates a support structure for the plurality of GRC forms when the concrete hardens and to permanently join the plurality of GRC forms together.
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