Self-consolidating concrete (SCC), also known as self-compacting concrete, is a highly flowable, non-segregating concrete that can spread into place, fill formwork and flow through densely reinforced complex structural elements under its own weight and adequately fill all voids without segregation, excessive bleeding, excessive air migration (air-popping) or other separation of materials, and without the need for vibration or other mechanical consolidation.  SCC is achieved through the use of carefully calculated admixtures that result in a flowable mix for which conventional slump testing is not applicable.  Instead, the “flow of concrete” is measured by the diameter of the spread.
 


There are many advantages to using Self-Consolidating Concrete: SCC places quickly and easily with little or no vibration for a smooth surface finish; wear and tear of equipment is reduced and placement requires less effort (vibrating is eliminated) and is safer.  After stripping the forms, the smooth surface finish will minimize or eliminate the need for time consuming patching repairs.

SCC has been used throughout Illinois in foundations, in areas with complicated steel-work and prominently all along the recently completed Peoria I-74 project.