Webinar Archives

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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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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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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 move through the concepts of the traditional tilt-up building and address the principle design requirements and challenges faced. 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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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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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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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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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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With a growing interest in sustainability, the construction industry is looking for solutions to help reduce its carbon footprint. The Portland Cement Association’s newly released Roadmap to Carbon Neutrality lays out the cement and concrete industry’s commitment to a lower carbon future. With its proven performance, portland-limestone cement, or PLC, is ready to play a key role, yet many designers and specifiers don’t know about it. This program will explain what PLCs are, how to use them, and their effects on fresh and hardened concrete properties. Several examples of PLC projects in the U.S. over the past decade will show how others have used it successfully.

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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.