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Aired Webinar Presenter Length Description Recording Presentation
3/8/23 Tilt-Up Construction: Concept to Delivery 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…
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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 detail the progress made and highlight the features of the industry that evidence why it is an ideal platform for specialists in design and construction, returning craftsmanship to the mindset of today’s contractor. 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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7/22/21 Non-Destructive Testing for Assessment of Concrete Structures Alfred Gardiner, PE (Braun Intertec) 1 Hour

We live in a constructed world and our lives and livelihoods are inextri…
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We live in a constructed world and our lives and livelihoods are inextricably linked to the proper function of our infrastructure and machinery. For this to be safely possible, we must have confidence in the technologies we rely on. Nondestructive testing provides that confidence.  To make smart choices, it’s important to have a sound understanding of the purpose, applications, requirements, and different methods of nondestructive testing. This presentation is intended to serve as an overview of various nondestructive testing applications as they are used in the field.

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8/3/22 Compressive Strength Failures: Causes, Evaluation and Resolution Alfred Gardiner, PE (Braun Intertec) and Dan Vruno, PE (American Engineering Testing 1 Hour

This presentation will provide information about what is typically done …
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This presentation will provide information about what is typically done when compressive strength results are less than the design strength. The presentation will cover: 1) The reasons for the low strength 2) How low strength is typically evaluated 3) What resolutions have they experienced

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12/7/22 How Technology is Shaping the Future of Concrete Delivery Chris Strickland and Ben Rabchuk (Command Alkon) 1 Hour

Like any industry, the construction sector is heavily influenced by tech…
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Like any industry, the construction sector is heavily influenced by technology. Even more so in recent years. While materials such as concrete might not conjure images of sci-fi films, lasers and androids, the industry itself has been immeasurably shaped by technological innovations, and this is set to continue. This presentation will discuss current and future technologies that will help automate processes, boost productivity, increases savings, and assist in reducing carbon emissions, all while improving communication and collaboration amongst all construction trading partners. New technologies like in truck concrete monitoring, sustainability trends, fleet tracking, inbound materials management, and other new technologies will be discussed.

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1/5/22 Best of Decorative Concrete 2021 – Ideas for Including Decorative Concrete in Design Chris Sullivan (The Fenix Group) 1 Hour

This presentation will include an overview of the American Society of Co…
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This presentation will include an overview of the American Society of Concrete Contractors award winning decorative concrete projects across all the major product categories highlighting how concrete can be strong and beautiful. Using the award-winning projects as examples, the presenter will illustrate how various types of concrete materials and finishes can be used across a wide scope of projects. The presenter will explain unique ways in which decorative concrete can be used to enhance projects – providing increased value and aesthetic appeal.

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6/1/22 Controlling Color & Longevity in Decorative Concrete Flatwork Chris Sullivan (The Fenix Group) 1 Hour

Recognizing decorative concrete flatwork requires a higher attention to …
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Recognizing decorative concrete flatwork requires a higher attention to detail is critical for success.  This program will cover best practices for all facets of decorative concrete flatwork.  We will look at steps including pre planning, installation, sealing and maintenance, and how each impacts the end result.  The primary focus will be key steps installers and designers need to consider to control color and promote longevity.

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9/13/22 Extended Joint Floors: Concepts, Systems & Material Choices Chris Tull - CRT Consulting 1 Hour

This presentation provides an overview of extended joint slabs primarily…
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This presentation provides an overview of extended joint slabs primarily used on industrial warehouse floors. An overview of the stresses that must be controlled in order to extend joints will be discussed. Two case studies of extended joints will be presented; one of which is the Twin Cities metro area.

Learning Objectives:
1.    Address the reasons why joints are extended.
2.    Explain how shrinkage and thermal stresses have an impact on joint spacing.
3.    Review the families of technology associated with extended joints.
4.    Define joint widening and how this can impact slab performance.

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6/14/22 FRP as Internal Reinforcement to Concrete Structures Christian C. Steputat, P.E. (University of Miami) 1 Hour

For many years, FRP reinforcing bar has been used internationally in are…
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For many years, FRP reinforcing bar has been used internationally in areas where steel is not suitable. Many of the structures relied on the use of ACI Design Guides. This presentation will discuss international infrastructure projects where the risk of corrosion of reinforcing bar was the primary reason to select GFRP reinforcing bar as a suitable reinforcement material. It discusses the important differences in the supply chain between steel and FRP reinforcing bar that should be considered by the contractor or purchaser. It also covers the cost-effectiveness of the solution and the advantages that were gained.

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2/9/21 Performance Based Specifications Support Sustainability Colin Lobo, Ph.D., P.E. (NRMCA) 1 Hour

With the increased focus on sustainability initi…
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With the increased focus on sustainability initiatives in construction, prescriptive requirements in specifications often restrict the concrete producer’s ability to optimize concrete for sustainability without compromising functional performance for project needs. The presentation will discuss these impacts and outline the development of a guide performance specification by ACI Committee 329.

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NRMCA - Specifying Sustainable Concrete

NRMCA - Guide to Specifying Ready Mixed Concrete (2015)

4/15/20 MN Concrete Forum: Environmental Product Declarations - The New Normal? Curt Turgeon (MnDOT Pavement Engineer) 1 hour

The webinar introduces the concepts of Product Category Rules, Environme…
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The webinar introduces the concepts of Product Category Rules, Environmental Product Declarations and Life Cycle Assessment. Legislative and Industry developments are addressed to inform the audience of why these concepts will likely become a part of daily lives in the near future.

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11/4/20 Economic, Construction & Cement Outlook: Cyclical & Structural Changes Resulting from Covid Dave Zwicke (Portland Cement Association) 1 Hour

The webinar covers Minnesota's cement/concrete trends and where the …
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The webinar covers Minnesota's cement/concrete trends and where the market is headed in the next few years. We will examine economic growth scenarios that may unfold under differing assumptions regarding COVID-19. Where are the growth opportunities? Will there be structural changes to the construction market following the recession? The presenter is Dave Zwicke who is Sr. Director of Economic Analysis at the Portland Cement Association.

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11/18/21 Ethics - Why Do Good People Do Bad Things? David Schultz (Hamline University) 2 Hours

Why do good people and organizations act unethically? Architects and eng…
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Why do good people and organizations act unethically? Architects and engineers may confront ethical dilemmas in many forms during their professional practice, especially in the public arena. Many think that only unethical people do bad things, and that ethical people generally do not do bad things. However, the reality is that is often not the case, and this presentation will discuss why good or ethical people often act unethically. In this program, attendees will examine the Minnesota Rules of Professionalism and Ethics and examine examples of ethical dilemmas in professional practice. Specific case studies will be used to provide a foundation for an analysis regarding how the fostering of ethical diversity and thinking about one's personal ethics within organizations can prevent the slippery slopes that lead to administrative evil or unethical behavior.

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6/8/21 The Top 10 Ways to Reduce Concrete’s Carbon Footprint Donn C. Thompson AIA, LEED AP BD+C (National Ready Mixed Concrete Association) 1 Hour

Concrete is unique among building materials. Its formulation is highly i…
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Concrete is unique among building materials. Its formulation is highly influenced by its application. Design professionals and contractors have a greater influence on concrete formulation than they do with other building products. Concrete can be made stronger, lighter, more flowable, stiffer, less permeable, and even weaker depending on performance needs. No other building material is that versatile. This presentation will discuss how design and construction teams can implement ten simple strategies to reduce concrete’s carbon footprint today. The recommendations are listed broadly in order of priority, but not in order of impact reduction. All are important and should be implemented. In addition, the strategies are meant to achieve a lower carbon footprint without impacting other desired performance capabilities for the concrete.

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1/11/23 Life Cycle Assessment of Concrete Buildings Donn C. Thompson, AIA (NRMCA) 1 Hour

Concrete is used in nearly every structure we build today, includi…
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Concrete is used in nearly every structure we build today, including buildings, bridges, homes, and infrastructure. With greater emphasis placed on sustainability, design professionals are faced with the challenge of meeting traditional design criteria with evolving criteria that support green building and efforts to reduce impact on climate change. When looking at the environmental impact of a building, it is important to assess every stage of the environmental life cycle, from material extraction and product manufacturing to building operations and maintenance through to end-of-life. Concrete offers many environmental attributes that help reduce the overall environmental life cycle impacts of a building. This learning session explores how life cycle assessment can be used to measure and lower the environmental impacts of concrete buildings.

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2/23/22 How Do I Write a Sustainable Concrete Specification? Donn Thompson AIA, LEED AP BD+C (National Ready Mixed Concrete Association) 1 Hour

Concrete is used in nearly every structure we build today, including bui…
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Concrete is used in nearly every structure we build today, including buildings, bridges, homes and infrastructure. With greater emphasis placed on sustainability, design professionals are faced with the challenge of meeting traditional design criteria with evolving criteria that support green building and efforts to reduce impact on climate change. Performance-based specifications for concrete represent an important synergy with sustainability initiatives because they provide the opportunity to optimize mixtures for performance that can also reduce environmental impacts. Prescriptive specifications often adversely impact the environmental footprint of concrete structures. This presentation outlines how concrete performance can be improved while lowering environmental footprint by implementing performance-based specifications.

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6/11/20 The Future of Fly Ash Doug Rhodes 1 Hour More than 75% of all concrete is made with fly ash. In some states, fly ash…
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More than 75% of all concrete is made with fly ash. In some states, fly ash is specified for all concrete structures. Several regional shortages in the past few years coupled with increasing EPA regulations and plant conversions from coal to natural gas has put the future of fly ash in question. This presentation will go over where the fly ash industry is today, what is being done to help with supply, and what is being done to help ensure a strong fly ash market for the future.

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7/14/20 Supplementary Cementitious Materials Dr. Larry Sutter 1 Hour

This presentation will cover the basics of common supplementary material…
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This presentation will cover the basics of common supplementary materials used in concrete. Common applications, comparisons of their properties in plastic and hardened concrete, as well as the outlook of their future use will all be covered in the presentation.

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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…
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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
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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…
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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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