Self-Consolidating Concrete

Self-Consolidating concrete (SCC) is a high-performance concrete that can flow easily into tight and constricted spaces without segregating and without requiring vibration. The key to creating self-consolidating concrete (SCC), also referred to as self-compacting, self-leveling, or self-placing concrete, is a mixture that is fluid, but also, stable, to prevent segregation.

To achieve the desired flowability a new generation of superplasticizers based on polycarboxylate ethers works best. Developed in the 1990s, they produce better water reduction and slower slump loss than traditional superplasticizers. The required level of fluidity is greatly influenced by the particular application under consideration. Obviously the most congested structural members demand the highest fluidity. However, element shape, desired surface finish, and travel distance can also determine the required fluidity.

Generally, the higher the required flowability of the SCC mix, the higher the amount of fine material needed to produce a stable mixture. However, in some cases, a viscosity-modifying admixture (VMA) can be used instead of, or in combination with, an increased fine content to stabilize the concrete mixture. (information from the Portland Cement Association – www.cement.org)

For More Information Call:

800-289-2569
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American Concrete Institute Certified Concrete Contractors

ACI Concrete Flatwork Certification Program

County Materials is a strong advocate for continuing education and a leader in providing industry resources and education for our customers.

The ACI began the Concrete Flatwork Finisher/Technician certification program in 1987 to provide a basis for certifying concrete finishers and improve the quality of concrete construction. More project owners and construction professionals specify that contractors have ACI-certified flatwork finishers onsite performing the work; they recognize the value of using ACI-certified finishers and technicians. ACI recertification is necessary every five years, and requires successful completion of a written examination. More information about the ACI Concrete Flatwork Certification Program is available at:

http://www.concrete.org/Certification/CertificationPrograms.aspx

The following professional concrete contractors have successfully completed the American Concrete Institute (ACI) Concrete Flatwork Certification Program:
(Year listed after each certified business indicates the year they achieved certification)

  • Alan Iatonni Masonry (Irma, WI) Ph 715.297.776
  • Firkus Masonry (Stevens Point, WI) (2015)
  • Huotari Construction Ph 715.748.4000
  • SK Masonry (Stevens Point, WI) Ph 715.340.4449