THE CONCRETE BRIDGE MAGAZINE

SPRING 2017

ASPIRE is a quarterly magazine published by PCI in cooperation with the associations of the National Concrete Bridge Council. The editorial content focuses on the latest technology and key issues in the Concrete Bridge Industry.

Issue link: http://www.aspiremagazinebyengineers.com/i/806277

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CONCRETE BRIDGE TECHNOLOGY UHPC is a Game-Changing Material for Bridge Producers by J. P. Binard, Precast Systems Engineering Last year, ultra-high-performance concrete (UHPC) generated considerable buzz in the concrete bridge industry. In March, during the Precast/Prestressed Concrete Institute's (PCI’s) Convention and National Bridge Conference in Nashville, Tenn., Dr. Yen Lei Voo gave a presentation on the remarkable uses of nonproprietary UHPC solutions by his company, DURA® Technology, to the PCI Committee on Bridges, which includes bridge design engineers, owners, and producers. Then in July, the First Interactive International Symposium on Ultra High Performance Concrete was held in Des Moines, Iowa. At that symposium there were site visits, presentations, and interactive panel sessions moderated by experts. The Summer 2016 issue of ASPIRE™ included an article titled “Taking Ultra- High-Performance Concrete to New Heights.”1 In September, fib task group 6.5 held a meeting in Malaysia and PCI conducted a TechnoQuest to visit DURA’s facility located in Ipoh, Malaysia, at the same time. As shown in the photograph above, the PCI group included (from left to right) Dr. John Lawler (WJE), Mason Lampton (Standard Concrete Products), J.P. Binard (formerly with Bayshore Concrete Products), our host Dr. Voo, Jim Fabinski (ENCON Colorado), and William Nickas (PCI’s managing director of transportation systems). Dr. Maher Tadros (e.construct USA LLC) also attended but was not in the photograph. Finally, in November Dr. Voo gave a presentation on his material and accomplishments during the opening session of the American Segmental Bridge Institute (ASBI) Convention in Long Beach, Calif. The PCI TechnoQuest group was inspired by Dr. Voo’s presentation to embark on this journey to Malaysia because to date, UHPC has not been considered a viable, consistent option for precast concrete components in the United States. DURA, however, is producing large components fabricated from UHPC that are incorporated into a variety of bridges throughout Malaysia. These bridges include the longest UHPC single span in the world, as well as the longest composite bridge fabricated with UHPC in the world, which is currently under construction. The company utilizes a facility solely focused on UHPC that directly competes with conventional structural solutions. The Game-Changing Material UHPC is not a new material. Projects and publications throughout the world have highlighted this material and its various applications in bridges, buildings, and other sectors for about 20 years.2 With nonproprietary versions of this class of material becoming more commonplace, (cont. next page)

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