Please note that we are unable to offer continuing education credits for views of recorded presentations found in our archives.
Webinar Archives
| Aired | Webinar | Presenter | Length | Description | Recording | Presentation |
|---|---|---|---|---|---|---|
| 3/23/22 | The Role of Materials in Sustainable Concrete Pavement Construction | Dr. Peter C. Taylor P.E. (Director, CPTech Center) | 1 Hour |
With increasing discussion about the need to control global warming, eng… With increasing discussion about the need to control global warming, engineers are starting to pay attention to how they can reduce the environmental impact of their work. This presentation will review what actions have been taken in recent years to reduce carbon footprint in concrete construction, as well as offer some thoughts on what actions can be taken today, and dream a little about the future. |
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| 1/13/21 | Better Design Through Embodied Carbon - Part One of the Sustainable Structures Webinar Series | Emily Lorenz, PE | 1 Hour |
Part of the Sustainable Structures Webinar Series… Part of the Sustainable Structures Webinar Series: Now that architects have a good understanding of environmental impacts related to energy use, the next design frontier in tackling climate change is reducing the embodied carbon in buildings. This live webinar will focus on best practices for determining the embodied carbon in a building, including credible sources for embodied carbon data. It will introduce common practices and misconceptions about comparisons of embodied carbon. A case study will be presented that highlights how design decisions may be influenced when comparing among up-front carbon, use-phase carbon, or whole-life carbon. The presentation will highlight existing tools related to quantifying embodied carbon. |
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| 7/23/20 | FIU Pedestrian Bridge Collapse: Testing of Full-Size Replicas of Failed Connection | Gary J. Klein, PE, SE | 1 Hour |
WJE carried out independent studies related to the 201… WJE carried out independent studies related to the 2018 collapse of the FIU Pedestrian Bridge in Miami. Most significantly, WJE developed and tested full-sized specimens to evaluate the significance of the National Transportation Safety Board’s (NTSB’s) finding that the construction joint between the northernmost diagonal and deck was left in an as-placed condition, rather than intentionally roughened as required by the project specifications. The webinar also describes WJE’s independent review of shear friction strength in accordance with the AASHTO Code.
The presentation describes the details of the experimental program that demonstrated that, had the construction joint been roughened as required by the project specifications, the collapse would not have occurred. Contrary to NTSB’s findings, the contractor’s failure to roughen the surface was the primary cause of the collapse. |
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| 3/8/22 | Implementation of the Strut-and-Tie Method | Gary Klein, P.E., S.E. and Jeremiah Fasl, PhD, P.E. (Wiss, Janney, Elstner Associates, Inc.) | 1 Hour |
Gary Klein addresses how the strut-and-tie method is implemented for var… Gary Klein addresses how the strut-and-tie method is implemented for various types of discontinuity regions such as deep beams, corbels, and post-tensioning anchorage zones. Jeremiah Fasl shares an example of how the method was used for design of the crane support beam at Barbours Cut Terminal at the Port of Houston. |
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| 3/8/23 | Tilt-Up Engineering Basics | James R. Baty II, F.ACI, F.TCA (Tilt Up Concrete Association) | 1 Hour |
The tilt-up industry remains characterized as a budding or growing deliv… The tilt-up industry remains characterized as a budding or growing delivery method for new construction. This dominant method of design and construction has a rich history of more than a century of influence and nearly fifty years of dramatic growth and unmatched solutions. This presentation will move through the concepts of the traditional tilt-up building and address the principle design requirements and challenges faced. The presenter will be James R. Baty II, F.ACI, F.TCA (Tilt Up Concrete Association). No credits will be awarded for viewing recordings of the webinar. The webinar is being sponsored by the Iowa Ready Mixed Concrete Association, the Minnesota Concrete Council, the North Dakota Concrete Council, the South Dakota Ready Mix Association, and the Wisconsin Ready Mixed Concrete Association. |
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| 1/26/22 | Portland Limestone-Cement and New Industry Initiatives | Jamie Farny (Portland Cement Association) | 1 Hour |
With a growing interest in sustainability, the construction industry is … With a growing interest in sustainability, the construction industry is looking for solutions to help reduce its carbon footprint. The Portland Cement Association’s newly released Roadmap to Carbon Neutrality lays out the cement and concrete industry’s commitment to a lower carbon future. With its proven performance, portland-limestone cement, or PLC, is ready to play a key role, yet many designers and specifiers don’t know about it. This program will explain what PLCs are, how to use them, and their effects on fresh and hardened concrete properties. Several examples of PLC projects in the U.S. over the past decade will show how others have used it successfully. |
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| 5/11/21 | Alkali-Silica Reaction in Concrete: Prevention, Test Methods and Standards | Jason H. Ideker, PhD (Professor, Oregon State University) | 1 Hour |
This presentation will focus on alkali-silica reaction (ASR) in concrete… This presentation will focus on alkali-silica reaction (ASR) in concrete. A brief background of the reaction mechanisms and ways to prevent the reaction will be covered. The reliability of standard test methods, within the context of current standards (ASTM C1778 and AASHTO R80) will be highlighted. In addition, several current research projects and international efforts in the area will be highlighted. |
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| 5/20/21 | Overcoming Concrete Pavement Objections | Jason Kruger | 1 Hour |
Many design engineers, contractors and project owners appreciate and ful… Many design engineers, contractors and project owners appreciate and fully recognize the significant value of concrete parking lots. However, there are some that still need some convincing. This presentation covers concrete parking lot features and benefits and gives suggestions for addressing common concrete paving misconceptions. |
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| 3/3/21 | #Concrete Tough: Are You Tough Enough | Jereme Montgomery and Art Thompson | 1 Hour |
Concrete is the foundation for everything we build. Concrete is an integ… Concrete is the foundation for everything we build. Concrete is an integral part of homes, businesses, schools, offices, churches, roads, and bridges. The concrete industry is in need of people who aren't afraid of hard work. A career in the concrete industry not only pays well but gives individuals the chance to build something that will stand the test of time. Right now, there is a growing need for concrete contractors, equipment operators, ready mix concrete truck drivers and quality control personnel. #ConcreteTough is a Nebraska based workforce recruitment campaign that exposes youth to the concrete construction industry. This message is communicated through participating in various career fairs, concrete 101 programs, and presented to numerous schools on the different careers the concrete Industry offers. Attendees will learn ways that they can incorporate concrete career awareness into their own workforce recruitment efforts. A short overview of the new Concrete Industry Management degree at South Dakota State University will also be included with this webinar. |
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| 1/28/21 | Concrete Pumping 101 | Jim Bury, Director of Placing Equipment at Conforms. | 1 Hour |
The concrete pumping equipment available today is more advanced, reliabl… The concrete pumping equipment available today is more advanced, reliable, and prolific than ever before. So why can’t I find one that can move this perfect mix I just created? The factors that can affect concrete pumping are numerous, inter-related, and sometimes hidden, making the predicting of pumpability seem elusive. So how is the construction industry, which is becoming ever more cost conscious and filled with complicated and demanding concrete requirements, to deal with it on a more simplified level? This presentation will discuss some of the over 50 factors that affect concrete pumping, the basics of how concrete pumping works, how mix designs can be adjusted to accommodate the application’s multiple requirements, and what can be done to help eliminate the jobsite problems that result in a finger pointing exercise and costly downtime. |
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| 6/21/23 | Innovations and Operations: Sustainability Initiatives in the Concrete Industry | Jim Schneider, LEED AP (PCI Mountain States) and Donn Thompson, AIA, LEED AP (NRMCA) | 1 Hour |
Concrete is a durable, resilient material that can provide many benefits… Concrete is a durable, resilient material that can provide many benefits to efficient, sustainable structures in the long term. While concrete does have an upfront CO2 impact, the industry is working to reduce GHG emissions and increase the efficiency of its products. This presentation will discuss technical innovations to reduce the carbon footprint of concrete and examine current process improvements that are pushing the industry forward to a more sustainable future. |
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| 7/8/20 | Introduction to Insulating Concrete Forms | John Lee, PE, LEED® A.P. and Curt Gohmann | 1 Hour |
The use of Insulating Concrete Forms or ICF’s as a structural building en… View Description The use of Insulating Concrete Forms or ICF’s as a structural building envelope has increased in recent years as building owners look to create buildings that require less maintenance while being energy efficient, quiet and, most importantly, resilient. This one-hour presentation will discuss the concept of ICF’s from design to construction while highlighting the many benefits for the designer, contractor, owner and occupant. Attendees of this course will see a variety of project types and learn why ICF’s were chosen over other building materials. |
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| 7/14/21 | Concrete Overlays of Existing Asphalt Streets and Parking Lots | Jon Hansen and Phil Kresge (NRMCA) | 1 Hour |
The performance life of asphalt surfaced parking lots can be extended by… The performance life of asphalt surfaced parking lots can be extended by placing a bonded concrete layer on top of the existing asphalt. This technique has been used for many years for highway, street, and parking lot pavements but still engineers and owners are unfamiliar with the process. This session will cover the publication entitled the Guide to Concrete Overlays of Asphalt Parking Lots and demonstrate the steps necessary to properly design and construct a concrete overlay. |
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| 12/8/21 | Workability and the Impact of Workability Retention | Joseph Daczko (Master Builders Solutions) | 1 Hour |
Contractors want concrete to be as workable as possible to facilitate pl… Contractors want concrete to be as workable as possible to facilitate placement and consolidation without compromising performance in the hardened state. Concrete producers strive to consistently deliver expected performance attributes. Yet, hydration of Portland cement leads to a change in fresh concrete properties immediately after batching, most notably with respect to mix slump or workability. In air-entrained concrete mixtures, furthermore, modified slump can lead to changes in air content, typically a reduction, and potential rejection of the load. Invariably, rejected loads result in loss of revenue and reduced profits for concrete producers. This presentation will discuss workability retention and the various methods traditionally used to manage it. Additionally, an innovative, new admixture is introduced that provides workability retention without the adverse effects of current practices. |
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| 6/3/20 | Concrete: Adaptive and Resilient Engineering for Climate Change | Julie Buffenbarger | 1 Hour |
Concrete, a core building material, has general properties — including st… View Description Concrete, a core building material, has general properties — including strength, durability, versatility, and relatively low cost— making it the most used building material in the world. the immediate and imminent challenges brought by population growth, urbanization and industrial production have provided an impetus for an increasing need for the resilience of buildings and infrastructure manufactured with concrete. |
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| 1/6/21 | The Use of Insulating Concrete Forms for Commercial Construction - Contractor's Perspective | Justice Olson (Nudura) and DC Mangimelli (Fox Blocks) | 1 Hour |
Lighter, faster and more cost effective than other forms of construction… Lighter, faster and more cost effective than other forms of construction, Insulating Concrete Forms (ICFs) are quickly becoming the construction method of choice for all forms of construction including single and multi-family, hotels, schools, offices. Concrete contractors, masons and framers have an opportunity to learn how their trade can work with ICFs to enhance their competitiveness in today’s construction environment. The presentation will focus on how to communicate basic ICF detailing, design efficiencies, and other necessary information to designers who may not be familiar with ICF construction. Also included in the presentation will be information on how ICF’s can affect other sections of the specification, best construction practices, and tips on how to determine labor costs for an ICF project. |
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| 9/1/21 | Cold Weather Concrete | Ken Hover, PhD (Professor, Cornell University) | 1 Hour |
There is a lot more to cold-weather concrete than just preventing freezi… There is a lot more to cold-weather concrete than just preventing freezing. This webinar will discuss the reasons to protect concrete in cold weather, the ACI definition of cold weather, methods to protect concrete from freezing, and other topics beneficial to contractors, designers, owners, and suppliers who design and build projects in cold weather. |
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| 5/21/20 | Trends in Modern Concrete Floors | Kevin MacDonald, PhD, PE, FACI | 1 hour |
The drive for sustainability often creates a tension between durability, co… View Description The drive for sustainability often creates a tension between durability, constructability an owner’s expectations. The presentation will concentrate on changes in owners expectations such as low maintenance, crack free and aesthetically pleasing slabs on grade. These will be reviewed in the context of new materials, such as alternative sources of binder, Type IL cements, sinusoidal or plate dowels, and the various techniques used to increase the spacing between joints, or even to remove them completely. |
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| 4/27/22 | Green Concrete – Where We Are Now and How Green Can We Get? | Kevin MacDonald, PhD, PE, FACI (Beton Consulting Engineers) | 1 Hour |
Green building is the concept of constructing buildings we need today wi… Green building is the concept of constructing buildings we need today without depleting resources for future generations. In the new world of sustainable building, information about the strength, durability, and indestructible nature of concrete as a resourceful building material is emerging. Amid the teardown-and-replace mentality still pervasive in the world today, concrete stands out defiantly. Try to replace concrete with an alternative building material, and you'll be hard pressed to find a substitute possessing the same thermal qualities, design flexibility, and permanence. This presentation will discuss where we are at as a green industry and the various ‘green” efforts that have been used in concrete production, such as substituting relatively high percentage of cement by fly ash (up to 100%), the use of other natural pozzolans, and development of concrete with recycled or waste materials. The presenter will also discuss where the industry might be headed in the future. Finally, problems in the realization of and potential barriers to green concrete construction are also discussed. |
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| 9/17/20 | Concrete Cracking | Kim D. Basham, PhD, PE, FACI (KB Engineering, LLC) | 1 Hour |
Concrete provides structures with strength, rigidity, and resilience fro… Concrete provides structures with strength, rigidity, and resilience from deformation. These characteristics, however, result in concrete structures lacking the flexibility to move in response to environmental or volume changes. Cracking is usually the first sign of distress in concrete. Cracking of concrete flatwork is natural, expected, and accepted. However, cracks may affect appearance, performance, and maintenance costs. This presentation will discuss the various types of concrete cracks and how to best minimize their occurrence. |
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