scope:

This is a report on the current knowledge on testing time-dependent properties of FRC, including shrinkage, creep behavior, and transport properties that affect the long-term durability. The objective of this report is to review some standard and nonstandard test methods available in the literature for better evaluating these properties. This document has summarized various published experiments; the results are presented to illustrate the test methodologies and should not be taken out of context or used for evaluating specific fibers. The results from the tests used in this document are not intended for direct use in design of FRC structures. The purpose of this document is to provide a better understanding of the many factors influencing test results for the determination of such properties. This report applies to shrinkage, creep, and transport properties of conventional FRC using fibers classified in ASTM C1116/C1116M. This report excludes test results for ultra-high-performance concrete (UHPC) or engineered cementitious composites (ECCs), both with elevated dosages of fibers. However, these tests may still be applicable to UHPC and ECC materials. The specific effects of concrete rheology and fiber orientation are also outside of the scope of this report; more information can be found elsewhere (Khayat et al. 2014; Kassimi and Khayat 2021).