Roller-Compacted Concrete (RCC) is a no-slump concrete that is compacted by vibratory rollers. Unlike conventional concrete which uses internal vibration for consolidation, RCC is externally vibrated with rollers. No reinforcing steel is used, so it is a quick operation, and the labor requirements are lower. RCC has the consistency of dense damp gravel, but once hardened it is still concrete, just placed in a different manner.

This session, Overview of Roller-Compacted Concrete Pavements: Applications, Design, and Construction, was presented by Wayne Adaska, Portland Cement Association, at the ACI Spring 2012 Convention. For a free Web session visit www.youtube.com/americanconcreteinst or www.concrete.org.