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Aired Webinar Presenter Length Description Recording Presentation
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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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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9/2/20 Net Zero, ICF Design for Rural/Tribal Projects Michael Laverdure, AICAE, AIA, NCARB, LEED AP (DSGW Architects) 1 Hour

This webinar will outline the benefits of using Insulated Concrete Forms…
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This webinar will outline the benefits of using Insulated Concrete Forms (ICFs) in construction, especially in regard to Rural and Tribal projects.  ICFs are a key component in DSGW’s strategy to design Net Zero projects.  This presentation will show examples of ICF and Net Zero design, in particular the Fort Totten Alternative CTE School, the country’s first Net Zero school on Tribal lands in North America.  

The 12,500 square foot, $3.8 million net zero Fort Totten Alternative CTE School was designed to produce more energy than it consumes while ensuring to meet other standards common when designing a net zero facility. There are other net zero schools in the United States, but this new school is the first to be built on tribal land and the first in North Dakota.

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12/8/20 New ACI Design Guides for Fiber Reinforced Concrete, and Other Developments in FRC Mike Mahoney, PE, FACI (Euclid Chemical) 1 Hour

The use of Fiber Reinforced Concrete continues to evolve and become more…
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The use of Fiber Reinforced Concrete continues to evolve and become more common place in everyday concrete construction. Learn how the new ACI 544.4R document can help ready- mix producers, engineers and contractors by providing a roadmap to designing FRC for many applications including floors, precast, shotcrete and paving applications. An update will also be provided on other CODE approvals such as UL fire classification for composite deck designs, various DOT initiatives for paving with FRC and the improvements in ASTM and other test methods to verify correct fiber selection and quantities in concrete.

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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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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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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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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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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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1/28/21 Pumping Air Entrained Concrete and the Super Air Meter Tyler Ley Ph.D., P.E. - Professor at Oklahoma State University 1 Hour

This presentation will discuss changes in the volume of air entrained co…
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This presentation will discuss changes in the volume of air entrained concrete in pumped concrete. The work shows that during pumping the air volume will decrease and if measured immediately after pumping will be lower than what is found in the final concrete. These findings are supported by hardened air void analysis, freeze thaw tests, and measurement of the air void volume and spacing over time in the fresh concrete with the Super Air Meter. The presentation makes recommendations for modifications to the current testing specifications based on the findings.

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1/27/21 Resiliency – Consideration Beyond Code Requirements Shamim Rashid-Sumar, PE, FSFPE (National Ready Mixed Concrete Association) 1 Hour

Part of the Sustainable Structures Webinar Series
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Part of the Sustainable Structures Webinar Series: Prescriptive building code requirements represent provisions for the least safe structure that may legally be built in a jurisdiction. Over the past 20 years, the building design and construction industry have witnessed an increase in the number of trade-offs of passive fire safety features for active systems. As natural disasters attributed to climate change continue to escalate, the population of neighborhoods located along with the wildland-urban interface increases, and fire and emergency access to buildings in densely populated areas is obstructed, multiple drivers arise to consider more robust construction for our built environment.

The presentation will provide an overview of increased risks from natural and human hazards, identify approaches to mitigate their effects through voluntary and mandatory strategies and demonstrate the importance of incorporating standards for resiliency beyond minimum code requirements.

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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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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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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

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…
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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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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…
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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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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