OasisLMS

This course will cover the development and use of fiber-reinforced self-consolidating concrete (FRSCC) including concrete repair work. It will be shown through test results that steel fibers added to SCC can improve properties of fresh and hardened states of concrete, including strength and workability. Some discussion of carbon nanotubes will be presented to show other property improvements that can result in improved FRSCC concrete properties. Other discussion will assess dispersion of fibers to understand how steel fibers can positively impact flexural resistance of the finished concrete.


The contents of this course include four recorded presentations from the ACI 2019 Spring Convention:
• Effect of Fiber Characteristics on Fresh and Hardened Properties of Fiber-Reinforced SCC, by Kamal Khayat, Missouri University of Science and Technology; and Ahmed Abdelrazik, Missouri University of Science and Technology
• Design of Steel Fiber-Reinforced Self-Consolidating Concrete Based on the Fiber-Aggregate Skeleton Void Content, by Joey Malloy, University of Nebraska–Lincoln; Miras Mamirov, University of Nebraska–Lincoln; Jiong Hu, University of Nebraska–Lincoln
• Homogeneity of Self-Compacting Concrete Modified by Carbon Nanotubes, by Maria Konsta-Gdoutos, University of Texas at Arlington; Panagiotis Danoglidis, Democritus University of Thrace; and Surendra Shah, Northwestern University
• Fiber-Reinforced Self-Consolidating Concrete: The Perspective of ACI TCs 544 and 237, by Liberato Ferrara, Politecnico di Milano

1. Describe effect of fibers used with SCC concrete for concrete patch repair work projects.
2. Explain how changes in cementitious paste volume, changes in fiber dosage rates, changes in fine aggregate volume, and changes in high-range water reducer dosage can affect strength, flowability and workability of FRSCC.
3. Discuss fresh state and hardened state properties of SCC that are improved by adding a small amount of carbon nanotubes.
4. Describe how researchers are learning how the impact of fiber dispersion can improve flexural resistance of FRSCC concrete.

Study the materials included in this module. Then, complete and pass the corresponding 10-question quiz with a score of 80% or higher to receive a certificate for 0.15 CEU (1.5 PDH).
Continuing Education Credit: 1.5 CEU (1.5 PDH)
Approved by AIA and ICC
Access Period: 30 days