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This document provides guidelines for specifying, plan-ning, designing, fabrication, and erecting precast concrete wall panels. Although the focus is on precast wall panels produced in established precasting plants, site precasting is an option that has been used successfully.
Precast Insulated Wall Panels (PIWPs) have been used in building construction for over five decades1. A PIWP consists of a layer of insulating material “sandwiched” between two wythes of concrete.
Insulated precast concrete wall panels have all the benefits of traditional precast such as durability, acoustic absorption, and quick install, in addition to the added bonus of being an all-in-one complete
Precast concrete insulated sandwich wall panels provide a functional and aesthetic wall system. Precast insulated sandwich wall panels consist of two conventionally reinforced or prestressed concrete wythes with a continuous layer of rigid insulation (typically extruded polystyrene)
Precast/prestressed concrete sandwich wall panels are composed of two concrete wythes (layers) separated by a layer of rigid foam plastic insulation. One of the concrete wythes may be a standard shape, such as a flat slab, hollow-core section, double tee, or any custom architectural concrete section. In place, sandwich wall
High performance precast in-sulated sandwich wall panels can provide significant contributions toward these goals. These panels are com-posed of two wythes of concrete separated by a continuous (edge-to-edge) wythe of insulation.
precast concrete sandwich wall panels commonly have steady state R-values ranging from 12 to 20 hr ft2 °F/Btu. The thickness of the insulation is determined by the thermal characteristics of the insulating material and the thermal loads on the structure.
