Title: Rapid Strength Concrete for Extending Service Life of Transportation Infrastructure
Author(s): Boris Stein, Robert Ryan, Vincent Perez, and Tanmay Kumar
Publication: Symposium Paper
Appears on pages(s): 69-82
Keywords: strength gain; calcium sulfoaluminate cement; portland cement; chemical admixtures
Proper preservation and rehabilitation strategies extend service life of concrete pavements and structures and are essential for enhancing sustainability of concrete transportation infrastructure. The use of rapid strength concrete (RSC) for these purposes allows for minimizing the impact on traffic. The paper discusses (i) Principles of selecting materials and proportioning of RSC with consideration for constructability, performance, and durability; (ii) Summarizes laboratory and field data on performance of various RSC types; (iii) Discusses best practices; and (iv) Illustrates recommended approaches with case studies of specific projects. The authors conclude that the use of RSC is a viable solution for extending service life of the aging concrete transportation infrastructure.