Aci 347r14 Guide To Formwork For Concrete | Pdf

The guide evaluates various materials used in formwork:

Perhaps the most practically vital chapter concerns and reshoring . Concrete must gain sufficient strength before forms are removed to support its own weight and construction loads. ACI 347R-14 provides guidance on estimating in-place concrete strength using maturity methods or field-cured cylinders, rather than relying solely on time (e.g., “7 days for slabs”). It also details the critical process of reshoring—placing temporary shores under newly stripped slabs to distribute loads from upper floors during multi-story construction. Improper reshoring is a common cause of progressive collapse, where one floor fails and cascades down through the levels below. aci 347r14 guide to formwork for concrete pdf

Bridges, tunnels, dams, and architectural concrete all have unique formwork needs. The PDF devotes a chapter to curved surfaces, post-tensioned slabs, and slipforming (continuous vertical placement). The guide evaluates various materials used in formwork:

The document covers the entire lifecycle of formwork, including: It also details the critical process of reshoring—placing

The guide is based on current research and best practices in formwork design and construction. Some recent research areas related to formwork include: