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Aired Webinar Presenter Length Description Recording Presentation
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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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…
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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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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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8/16/23 The Role of Concrete in Carbon Neutrality Andrea Schokker, PhD, PE, LEED AP (NEU, An ACI Center of Excellence for Carbon Neutral Concrete) 1 Hour

This presentation will introduce the work of NEU, an ACI Center of Excel…
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This presentation will introduce the work of NEU, an ACI Center of Excellence for Carbon Neutral Concrete, and discuss the important role of concrete in reaching carbon neutrality. The presentation will provide an overview of key terms and concepts, the latest information on green concrete codes, and examples of low carbon practices for the concrete industry for the present and future.

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9/13/23 Shoring and Reshoring Loads, Safety, Cost, Schedule, Concrete and Responsibility Professor Ken Hover, Cornell University 1 Hour

Forms, shores, and re-shores are a temporary s…
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Forms, shores, and re-shores are a temporary structure that carries the weight and construction load of the permanent structure until it is strong enough to stand up for itself.  While serving this temporary duty, forms, shores, and re-shores impact construction safety, cost, productivity, and schedule, and influence appearance, deformations, tolerances, and cracking of the hardened reinforced or prestressed concrete. 

 

This presentation introduces Codes, standard specifications, OSHA, and ANSI documents that address responsibilities for forms and shores.  By an example of a multi-story building, we look at how shore and re-shore systems work, including how shoring & re-shoring plans must be synchronized with rate-of-strength-gain of the concrete, as influenced by mix-design and ambient temperature.  This complex topic demonstrates how schedule, concrete mix, weather, construction technology, lab and in-place testing all come together.

A recording is not available for this webinar.

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10/5/22 Concrete Cracking – Best Practices Kim D. Basham, PhD, PE, FACI. (Senior Structural Engineer, KB Engineering, LLC) 1 Hour

Concrete provides structures with strength, rigidity, and resilience fro…
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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.

Learning Objectives:
1.    Understand the different types of cracking in concrete.
2.    Understand what causes concrete to crack.
3.    Understand how to evaluate the difference between structural cracks and cosmetic cracks
4.    At the conclusion of the presentation, participants will know how to minimize concrete cracks.

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2/23/21 Avoiding Damage, Distress, and Disappointment in Concrete Structures Michael W. Lee (Principal at Wiss, Janney, Elstner Associates) 1 Hour

This presentation reviews failures, damages, and other incidences of poo…
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This presentation reviews failures, damages, and other incidences of poor performance in concrete structures that have served to shape today's building codes and the standard of care for the profession. Examples range from well-documented, high-profile collapses to lesser known but similarly influential structural and serviceability problems. Case histories will include discussion of excessive cracking, the cause of such distress, and mitigation measures. The case histories will illustrate how small details can often mean the difference between success and disappointment; and how codes have evolved to reduce the risk of future failures.

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4/22/21 Mass Concrete – How Big is Big? Robert Howell, P.E. (Professional Development Program Engineer, American Concrete Institute) 1 Hour

What is mass concrete? ACI 207.1R defines mass concrete as any volume of…
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What is mass concrete? ACI 207.1R defines mass concrete as any volume of concrete with dimensions large enough to require that measures be taken to cope with the generation of heat from hydration of the cement and attendant volume change to minimize cracking. But how does one predict whether mass concrete problems will occur and what steps should be taken? This presentation will discuss how to identify mass concrete, ACI 301 requirements pertaining to it, and good construction practices.

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5/4/22 Type I Construction vs Type IV Construction: A Building Code Perspective Larry Farris (BKV Group) 1 Hour

A lot is known about Type I Construction (non-combustible) because it ha…
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A lot is known about Type I Construction (non-combustible) because it has been used for decades for multi-story construction.  Although Type IV Construction (heavy timber) is not new, it is just now beginning to be used with greater frequency in multi-story construction. This presentation will provide an overview of the building code as it relates to Type I and Type IV Construction. Case studies will be used to demonstrate relevant code sections that apply to Type I and Type IV buildings using the current Minnesota Building Code including:

    Chapter 5 – Area and Height limitations of Type I and Type IV
    Chapter 6 – Fire Rating requirements for Type I and Type IV
    Chapter 7 – Fire and Smoke requirements, shafts, sound assemblies  
    Chapter 9 – Fire and Life Safety requirements of Type I and Type IV
    Chapter 23 – Wood and heavy timber construction.  

In addition, materials and special inspections will be discussed for each type of building.

Recording Not Available

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11/2/22 Firestop Services and Fire Damage AssessmentFirestop Services and Fire Damage Assessment Kim Deibel, PE (Braun Intertec) 1 Hour

The webinar explores two concepts; First is the preventative measures an…
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The webinar explores two concepts; First is the preventative measures and the services around firestop consulting, inspections, and what architects, contractors, project managers, and installers should keep in mind as they plan, construct, and maintain firestops in their facilities. Second is what happens when a fire does occur, how does it affect the concrete, and what assessments and testing can be completed onsite to determine repair or replacement options.

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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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11/9/21 Formwork Considerations for Building Design Ryan Gregory (Ceco Concrete Construction) 1 Hour

This webinar will provide a general overview of common horizontal formin…
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This webinar will provide a general overview of common horizontal forming systems in use today. We will also discuss some project specific factors that drive the system selection process as well as review examples of building design factors affecting constructability and economy.

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