The Fire-Resistant Properties of Lightweight Concrete Masonry Units

In an era where building safety standards continue to evolve, fire-resistant construction materials have become increasingly crucial for project teams. Lightweight concrete masonry units (CMU) made with expanded shale, clay, or slate (ESCS) aggregates represent a significant advancement in combining structural efficiency with superior fire protection. Here, I explore how these specialized CMU perform during fire events, their unique properties,…

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ACI, PTI fulfill Post-Tensioned Structural Concrete Code release

The American Concrete Institute and Post-Tensioning Institute have completed delivery of ACI/PTI CODE-320-25: Post-Tensioned Structural Concrete—Code Requirements and Commentary, offered in PDF or hard copy versions. The document provides minimum requirements and guidance for the materials, design, and detailing of post-tensioned concrete buildings and, when applicable, nonbuilding structures. ACI/PTI CODE-320-25 was developed through a consensus process to which the PTI Technical…

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