Guide for Cast-in-Place Low-Density Concete


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Title: Guide for Cast-in-Place Low-Density Concete

Author(s): ACI Committee 523

Publication: Journal Proceedings

Volume: 83

Issue: 5

Appears on pages(s): 830-837

Keywords: accelerating agents; admixtures; aggregates; air entrainment; cellular concretes; compressive strength; concrete construction; fire resistance; foaming agents; formwork (construction); insulating concretes; lightweight aggregate.

Date: 9/1/1986

This guide provides information on materials, properties, design, and proper handling of cast-in-place concretes having oven-dry unit weights of 50 pcf (800 kg/m’) or less. These concretes achieve their low unit weight by incorporating low-density aggregates, air entrainment, or preformed foam. These concretes are most commonly used in roof deck systems, where their advantages include insulating value, the ability to be sloped-to-drain, and improved fire resistance.