Webinar Archives

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The concrete industry has a goal of carbon neutrality by 2050.  In response to this goal, many industry organizations are tasked with getting their message related to decarbonization and sustainability to their customers, specifiers, and employees.  Transparency and recognition of goals and achievements are vital.  Kimberly will discuss a variety of methods and materials that should be used to effectively communicate progress.  Kimberly will help you identify key ways to communicate the steps your organization is taking, whether that be in the form of a new product or innovative process, that will help your organization reach your sustainability goals.

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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.

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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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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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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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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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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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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.

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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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Part of the Sustainable Structures Webinar Series: Look around and you’ll see many five to seven story projects being built today with a one- or two-story concrete pedestal, supporting up to five floors of steel or wood frame. These “pedestal” projects are assumed to be the cheapest way to build while longer term ownership implications of these designs are not well understood. This one-hour presentation dispels the myths that are driving the popularity of pedestal construction and demonstrates the value concrete provides.

The developer/owner’s perspective on building multi-family housing projects with Insulating Concrete Forms (ICFs) will be presented, and will include design, construction, and energy-efficiency implications, as well as tenant satisfaction. The presenter will overview his use of ICF’s and concrete for the exterior wall system at Kendal Lofts, a 42-unit project in Waukesha, Wisconsin. In addition, the presenter will also discuss his latest all-concrete residential projects in Wisconsin and Florida.