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Aired Webinar Presenter Length Description Recording Presentation
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)

2/10/21 Precast Concrete Storm Shelters Paul Todd (Todd Architecture) 1 Hour

Part of the Sustainable Structures Webinar Ser…
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Part of the Sustainable Structures Webinar Series: This one-hour program is intended for professional designers and engineers. The attributes of precast concrete will be presented, demonstrating how these qualities may be applied to the design and construction of safe and efficient storm shelter facilities. The versatility and resiliency of precast concrete will be further highlighted by a video demonstration, and a series of case studies.

 

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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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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…
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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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4/7/21 ICF Detailing - Lessons Learned M Laverdure and A Wilson (DSGW Architects) 1 Hour

This session will review a few recent projects that were done completely…
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This session will review a few recent projects that were done completely in Insulated Concrete Forms and discuss some of the lessons learned when it comes to detailing.   From sub-grade installation to coordinating metal joist connections to exterior options, this presentation will illustrate some good options for you own ICF project.  Discussion about the ability for ICF to be a part of a Net Zero solution will also be a part of the presentation.

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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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4/22/21 Mass Concrete Constructability Oscar R. Antommattei, MS, PE, FACI (Chief Concrete Engineer & Materials Engineering Manager, Kiewit) 1 Hour

Mass concrete (or thermally controlled concrete) typically requires impl…
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Mass concrete (or thermally controlled concrete) typically requires implementing thermal control measures to reduce maximum temperature and mitigate temperature difference. Specified temperature limits and thermal control requirements can affect mix design proportions, materials selection, reinforcement details, construction operations and compliance to specifications for the work. Many specifications still limit concrete temperatures to overly conservative default values without recognizing concrete properties and performance that allow alternative temperature limits more suitable for the specified work while maintaining quality and improving constructability. This issue frequently results in challenging scenarios that create design difficulties and unnecessary constructability problems for mass concrete. This presentation focuses on the implementation of today’s knowledge of mass concrete and best practices to overcome mass concrete challenges and facilitate solutions in projects. A special emphasis will be given to the technical updates provided for mass concrete requirements and guidance progressing in North America industry standards.

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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…
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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…
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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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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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View NRMCA Guide to Improving Specifications for Ready Mixed Concrete

6/17/21 Hot Weather Concrete Ryan Scott (GCP Applied Technologies) 1 Hour

Hot weather conditions are not solely related to the air temperature whe…
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Hot weather conditions are not solely related to the air temperature when placing concrete.  Those conditions are defined in ACI and ASTM documents.  This presentation will focus on being able to define hot weather conditions and its effects on concrete in the plastic and hardened state.  This presentation will also provide details on how to overcome the conditions of hot weather when placing concrete.

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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…
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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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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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7/22/21 Non-Destructive Testing – Advanced Technology and a Practical Review of How to Use It Larry D. Olson, P.E. (President and Chief Engineer, Olson Engineering, Inc., and Olson Instruments, Inc.) 1 Hour

As computing power become faster and smaller it leads to advances in non…
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As computing power become faster and smaller it leads to advances in non-destructive testing (NDT) techniques for structural concrete condition assessment. We will explore some of the newest techniques in the market and discuss how they can be use on structures and construction projects. We will also review a practical approach to finding construction flaws such as honeycomb, void and cracking in new structures as well as scanning to map out corrosion damage in aging structures using many different Non-Destructive Testing techniques.

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8/4/21 How Keeping Your Coffee Hot and Your Beverages Cold Can Help You Understand Insulated Concrete Forms Stephen M. Williams, AIA, NCARB from Design West Architects 1 Hour

This webinar will explore the use of Insulated Concrete Forms as a viabl…
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This webinar will explore the use of Insulated Concrete Forms as a viable and enduring building system.  The webinar will explain the many benefits, economies, and attributes of Insulated Concrete Forms.  The presenter will share lessons he has learned, details for implementation, things to avoid, and things to consider.  The presenter will describe how Insulated Concrete Forms can be implemented into the design of net-zero energy buildings.  Finally, a case study will help illustrate the benefits and properties of a thermal mass/thermal reservoir. 

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8/10/21 Parking Structures: Common Problems and Best Practices Michael W. Lee (Principal at Wiss, Janney, Elstner Associates) 1 Hour

This presentation reviews strength and serviceability problems in concre…
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This presentation reviews strength and serviceability problems in concrete parking structures. The effects of environmental exposure, vehicular loading, and deterioration will be discussed with an emphasis on key differences between buildings, parking structures, and bridges. Case histories will be provided to illustrate common problems, failures, and remediation methods. Precast concrete and cast-in-place systems will be discussed, including problems that occurred during construction. The presentation will include examples of changes that have occurred in the industry to enhance safety and long-term performance.

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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…
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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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10/13/21 We Have to Build it Where? Solutions for Building on Challenging Construction Sites Michael Hoeft / Dan Schellhammer / Scott Spisak 1 Hour

As physical sites grow and expand, means and methods for property develo…
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As physical sites grow and expand, means and methods for property development become much more complex. With abbreviated construction schedules and significant liquidated damages, the ability to gain some control of the uncontrollable becomes essential. The earlier this process is recognized and integrated into the project, the better the chance for success. This presentation will address several ways to work with challenging construction sites using cement and concrete; delivering large projects to the owner on time, economically and sustainably.

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Hoeft Handout
Schellhammer Handout
Spisak Handout

10/13/20 ACI 360 – Design of Slabs on Ground Scott Tarr, PE, FACI (North S.Tarr Concrete Consulting) 2 Hours

There are five commonly used procedures for designing industrial floor s…
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There are five commonly used procedures for designing industrial floor slabs. All of them are effective when their recommendations and details are followed. So, how does a designer choose the best method for a particular floor?  The most common approach is to determine the type of floor construction needed for expected loading conditions. Then, from the design procedures, select the most appropriate method for determining floor thickness, reinforcement, joint spacing, and other details.  This presentation will discuss the ACI 360 “Guide to Design of Slabs on Ground”.  It will briefly address the planning, design, and detailing of slabs. Background information on design theories is followed by discussion of the types of slabs, soil-support systems, loadings, and jointing. Some worked design examples for various types of concrete slabs-on-ground will also be covered.

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