The contents of this course include five recorded presentations from the ACI 2017 Fall Convention:
• Performance of Self-Consolidating Concrete Developed for Iconic and High-Rise Structures in North America by Van K. Bui, BASF Construction
• VDOT’s SCC Applications in Beams and Lessons Learned by H. Celik Ozyildirim, Virginia Transportation Research Council
• Shear and Bond Strength of Self-Consolidating Concrete for Cast-in-Place Bridge Applications by George Morcous, University of Nebraska–Lincoln
• Structural Performance of Alabama’s First SCC Precast, Prestressed Girder Bridge by Samuel Keske, Wiss, Janney, Elstner Associates, Inc.; and Robert Barnes and Anton Karel Schindler, Auburn University
• Effect of Fiber Type on Engineering Properties and Structural Performance of Fiber-Reinforced Self-Consolidating Concrete by Kamal H. Khayat, Missouri University of Science and Technology; and Ahmed Abdelrazik, Missouri University of Science and Technology
INSTRUCTIONS: 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 (equivalent to 1.5 PDH). This online course is not approved for credit with the Florida Construction Industry Licensing Board (CILB).
Continuing Education Credit: 0.15 CEU (1.5 PDH)
Approved AIA and ICC
Access Period: 30 days
The use of self-consolidating concrete (SCC) in precast and cast-in-place applications has been growing steadily worldwide, with SCC becoming the material of choice to facilitate concrete placement in highly restricted sections and in extreme placement conditions. This includes high-rise building construction, such as the One World Trade Center in New York City, Burj Khalifa in Dubai, and the Jeddah Tower in Saudi Arabia. The objective of this session is to highlight recent projects involving design and construction of SCC for high-rise building and major bridge construction projects, and the potential obstacles to further implementation of SCC. Lessons learned for concrete producers, structural designers and architects, and contractors will be addressed. Several important examples regarding the structural performance of SCC will be highlighted, including strength development, elastic moduli, bond strength to embedded steel, prestress losses, shrinkage, and permeability. This course will be beneficial to practicing professionals dealing with the structural design and construction of SCC.
Author: Bui, Ozyildirim, Morcous, Keske, Khayat
Categories: High Performance Concrete, Permeability, Self-Consolidating Concrete
Formats: Online Learning
Table of Contents
1. Describe achievable properties of self-consolidating concrete that is required to successfully construct high rise reinforced concrete buildings such as New World Trade Center Tower in New York and others.
2. Recall lessons learned in material selection in SCC mixtures, flow retention, workability, slump loss, admixtures affecting workability in constructing reinforced SCC highway bridge arches, piers, columns and bridge beams.
3. Explain comparisons of bond strength and shear resistance properties lab tested beams using an SCC mixture and a vibrating concrete (non-SCC) mixture.
4. Identify effects of fiber reinforcing in SCC mixtures with regards to first crack resistance and flexural toughness and strength characteristics.
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