Abstract: This paper investigates the effects of rheological performance, antifoaming admixtures (AFA 1 and AFA 2), and mixing procedure on air bubbles and the mechanical strength of ultra-high-performance concrete (UHPC). Thirty-eight ...

Abstract: Internal vibration is adopted worldwide for consolidating fresh concretes in field construction. Improper manual operation of the vibration process can easily induce segregation and bleeding of fresh concrete and subsequent ...