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NRMCA’s International Concrete Sustainability Conference Online provides distance learning opportunities on the latest advances, technical knowledge, continuing research, tools and solutions for sustainable concrete manufacturing and construction. This series of free monthly webinars features world renowned speakers who presented at the International Concrete Sustainability Conference. Join us for key topics:



Future Topics Coming Soon!



Past Presentations


August 15, 2013 | view recording


Dr Liv Haselbach, PhD, Associate Professor, Washington State University, USA


Quasi-Steady-State Equilibrium Estimation of Concrete Pavement CO2 Sequestration, Liv Haselbach, Robby Borden and Mylene Gueneron


Ordinary portland cement (OPC) concrete pavements can sequester a significant portion of the CO2 released during the manufacture of OPC. Thermogravimetric analyses were conducted to determine interior carbon sequestration levels on one inch (25.4 mm) deep laboratory prepared cement specimens that had been aged only a few years, and also on older concrete pavement samples collected from actual applications The results of the testing correlate well with a quasi-steady-state equilibrium partitioning model for interior sequestration based on material and chemical characteristics. Interior stoichiometric carbon dioxide sequestration levels from 20 to 25% were found in OPC specimens with even higher sequestration levels when specimens are made with supplementary cementitious material.


July 18, 2013 | view recording


Jacob Sobstyl, Researcher, Massachusetts Institute of Technology, USA


Urban Physics: City Texture Matters, Jacob Michael Sobstyl, Mohammad Javad Abdolhosseini Qomi, Benoit Coasne, Roland Pellenq and Franz-Josef Ulm


With more than 50% of the world’s population (85% in the US) living in urban areas and linear projections for urbanization, one of the major societal challenges is efficient energy management of cites. Although city planners consider many parameters, their qualitative approach is not sufficient enough to fully understand the sheer complexity of the relationship between inter-building interactions, city texture and atmosphere. To address this, an approach of quantifying complexity inspired by the structure of atoms and molecules is proposed. It suffices to consider the effect of solar radiation and its implications for thermal mass management of cities.


September 19, 2013 | Download Presentation (PDF) | Link to Report


Dr Lisa Bradley, PhD, Vice President and Senior Toxicologist/Risk Assessor, AECOM, USA


Coal Ash Material Safety—A Health Risk-Based Evaluation of USGS Coal Ash Data from Five US Power Plants, Lisa Bradley


Recycling of coal ash (CCPs) is one of the great environmental success stories of our time. Over 42% of the coal ash produced in the U.S. is put into beneficial use. Almost a quarter of this recycling is reuse in concrete and cement products. However, these uses are threatened by U.S. Environmental Protection Agency’s (USEPA) potential regulation of coal ash as a hazardous waste, and by constant references to “toxic coal ash” by the press. Therefore, a detailed health-risk based evaluation was conducted of coal ash data released in a report by the U.S. Geological Survey. This evaluation was conducted by comparing constituent concentrations in coal ash to risk-based screening levels developed by the USEPA that are protective of a child’s direct exposure to residential soils. Constituent concentrations in coal ash were also compared to background concentrations in soils in the U.S. The results indicate that, with few exceptions, constituent concentrations in coal ash are below screening levels for residential soils, and are similar in concentration to background U.S. soils.



NRMCA hosts technical conferences in North America and other parts of the world each year. The conference provides learning and networking opportunities on the latest advances, technical knowledge, continuing research, tools and solutions for concrete manufacturing and construction. Visit www.concretesustainabilityconference.org or www.concretetechnologyforum.org for details.



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