Reducing Restrained Shrinkage Cracking in Concrete: Examining the Behavior of Self-Curing Concrete Made using Different Volumes of Saturated Lightweight Aggregate

Abstract

Increased observations of cracking in bridge decks have spawned innovative developments in the design of materials that reduce the potential for cracking. This study examines one of these technologies: self-curing concrete. Self-curing concrete technology involves the use of saturated lightweight aggregates to provide additional water to counteract the effects of drying and self-desiccation. This study highlights the shrinkage behavior of concrete containing saturated lightweight aggregate with different volume replacements. The results of the study indicate that when a sufficient amount of lightweight aggregate is used, saturated lightweight aggregate is an effective way to reduce shrinkage and delay or prevent cracking.