Keynote Presentations

Joseph A. Daczko
BASF Construction Chemicals

North American Acceptance of Self-Consolidating Concrete
The use of self-consolidating concrete (SCC) is influenced by many factors including; standardization status, concrete production segment (precast and cast-in-place), individual awareness and understanding, environmental conditions, Department of Transportation and specifier approval. This presentation is intended to provide the audience with a holistic understanding of the current level of SCC acceptance from a variety of perspectives. The discussion will treat both the benefits and challenges of these different perspectives and will conclude with a proposed path forward for further understanding and acceptance of SCC in North America.

Biography
Joseph A. Daczko is an employee with BASF Construction Chemicals, Cleveland, Ohio. He is a graduate of John Carroll University and has over 16 years of experience in the development and application of concrete construction materials. He has published many technical papers and given a large number of technical presentations on the topics of rheology and self-consolidating concrete.

Mr. Daczko is Chairman of ACI 237 - Self-Consolidating Concrete and a member of ASTM C-9.47, Self-Consolidating Concrete. He is also active in the Precast/Prestress Concrete Institute (PCI) and is a member of the National Precast Concrete Association (NPCA). In 2007, Mr. Daczko was awarded ACI's Delmar Bloem Award for his leadership of ACI Committee 237 and was chosen by Concrete Construction magazine as one of the 10 most influential people in the concrete industry.

Jeanne Gang
Studio Gang Architects

Why I Love Concrete

Biography
Jeanne Gang is design principal architect and leads Studio Gang Architects, a practice that has designed award-winning projects since its inception in 1998. Ms. Gang's design in the field of architecture is supported through a mode of working that combines practice, teaching and research. As adjunct professor at the Illinois Institute of Technology she has taught architecture since 1998. She was visiting professor at the Harvard Design School in 2004, and held the Louis I. Kahn visiting professor chair at the Yale College of Architecture in 2005.

As design principal, Ms. Gang is responsible for leading the design throughout all phases of the project. Her ability to collaborate and draw out team expertise has benefited projects of many different scales. Through exploration and research early in the design process, her work has staked out new creative territory in materials, technology and sustainability.

Her recent projects include the winning entry for the Ford Calumet Environmental Center, now under development, and the eighty-story, mixed-use residential "Aqua Tower" under construction in downtown Chicago. The work of Studio Gang has received numerous awards and has been published and exhibited widely. Studio Gang's work has been featured at the Art Institute of Chicago, the National Building Museum of the Smithsonian Institution, and recently at the International Venice Biennale. Ms. Gang was chosen to lecture as one of the Architecture League of New York's Emerging Voices in spring of 2006 and received an Academy Award from the American Academy of Arts and Letters in the same year.

SOS Children's Village Lavezzorio Community Center (Chicago). Photo courtesy of Hedrich Blessing.

Ford Calumet Environmental Center (Chicago). Rendering courtesy of Studio Gang Architects.

Harry A. Gleich, P.E., FACI, FPCI
Vice President of Engineering
Metromont Corporation

Self-Consolidating Concrete in the Precast Prestress Market
The use of self-consolidating concrete (SCC) has had a tremendous impact on the precast prestressed concrete market over the last 10 years. According to a recent U.S. industry survey, over 35% of all precast concrete placed by precast prestress producers is SCC. In North America, Metromont Corporation was one of the early adopters and leaders in this technology and has developed significant expertise in its use. This presentation will discuss the general performance characteristics and benefits of SCC to the precast prestressed concrete producer. Several case studies will be presented on projects where SCC has been used successfully, highlighting the collaboration between supplier and producer that is required to implement SCC into daily production.

Biography
Harry Gleich is responsible for all the design and quality control for Metromont Corporation, one of the largest precasters in the Southeast United States. Metromont builds parking structures, schools, dormitories, prisons, office, stadiums and many other types of structures. Harry has more than 30 years of design knowledge from the precast prestress industry. He is also heavily involved in both ACI and PCI. Harry serves on Sub A for ACI 318, which deals with materials, and is also on TAC and SCC Bond Committee at PCI.

Ara A. Jeknavorian, Ph.D.
Research Fellow
Grace Construction Products
W.R.Grace & Co. -Conn.

Future of Self-Consolidating Concrete in the Industry
Unlike the penetration of self-consolidating concrete (SCC) in the precast/prestress industry, SCC still remains as a relatively limited technology to both producers of ready-mix concrete as well as concrete contractors despite the many benefits that have been demonstrated in numerous construction applications. Key factors appear to include the inability to realize the value that SCC brings to concrete quality, savings in placement cost, and flexibility in design, especially when compared to the perceived challenges in not being able to consistently produce SCC mixtures having the appropriate rheology and in-place stability. However, while the near term growth of SCC will depend primarily on increased promotion and continued improvement in the competency to produce and place SCC mixtures, SCC is expected to become significantly more prevalent based on how well this technology meets the demand for increased sustainability in the concrete construction industry. Others trends expected to enable and drive the use of SCC technology include the on-going shift from prescription to performance specifications, creativity in surface characteristics, increased attention to worker safety, and the capability of delivering concrete mixtures with predictable rheology resulting from interfacing new admixture chemistries and controlled mixing technologies from batch plant to the job-site.

Biography
Dr. Ara Jeknavorian is a Research Fellow with the Construction Products Division of W.R. Grace in Cambridge, MA. Starting in 1979 with the Technical Service group, Ara conducted investigations on the performance of concrete materials and chemical admixtures, and developed numerous chemical and instrumental methods for troubleshooting cementitious systems. In 1995, Ara transitioned to the product development group for chemical admixtures, spearheading the introduction of polycarboxylate-based superplasticizers to North America. He is an inventor on twelve patents for concrete and masonry admixtures, and has authored over twenty-five publications in the field of analytical chemistry of cementitious systems and the application of chemical admixtures for concrete. Ara is a member of the American Chemical Society, American Concrete Institute, and the ASTM C09 Committee of Concrete, where he chairs the Chemical Admixtures Sub-Committee and has been recognized for outstanding service for his contribution to standards development for chemical admixtures. At the Sixth CANMET/ACI International Conference on Superplasticizers and Other Chemical Admixtures (Nice 2000), Ara received recognition for his outstanding contribution and achievements in the field of concrete admixture technology. Ara holds a Ph.D. degree in Analytical Chemistry from the University of Massachusetts.

Kamal H. Khayat
Professor
Department of Civil Engineering
Université de Sherbrooke, Sherbrooke (Québec) Canada

The State of Research in the Field of Self-Consolidating Concrete (SCC)
The presentation will summarize on-going research projects in the field of materials science, concrete technology, and structural engineering pertaining to the development, testing, performance, and implementation of SCC.

Biography
Kamal Henri Khayat is Professor of Civil Engineering and Head of the Cement and Concrete Research Group at the Université de Sherbrooke, Sherbrooke, Quebec, Canada. He holds undergraduate and graduate degrees in Civil Engineering from the University of California at Berkeley. He has conducted pioneer work in rheology of specialty cement-based materials, including self-consolidating concrete (SCC), underwater repair, and grouting and has published over 150 technical papers on various subjects pertaining to these areas of research. He is Fellow of the American Concrete Institute and serves on several technical committees of ACI, RILEM, and CSA, including Chairman of RILEM TC on Mechanical Properties of SCC and Secretary of ACI 237, SCC.

Surendra P. Shah
Director, Center for Advanced Cement-Based Materials
Professor, Northwestern University

Self-Consolidating Concrete: Now and Future
Self-Consolidating Concrete (SCC) has transformed the way that concrete construction is performed throughout the world. The fact that SCC changed the way that concrete is processed places it on the cutting edge of technological and scientific developments. While SCC may no longer be considered a "new concrete", there are still significant challenges to overcome before there is a broader of SCC in both cast-in-place and precast industry. This paper will present some current research on the rheological characterization SCC, as well as highlight some of the more pressing issues that still must be addressed before SCC can be fully utilized.

Biography
Surendra P. Shah is a Walter P. Murphy Professor of Civil Engineering at Northwestern University. He is the Director of the pioneering NSF Science and Technology Center for Advanced Cement-Based Materials. His current research interests include: fracture, fiber reinforced composites, non-destructive evaluation, transport properties, processing, rheology, nanotechnology, and use of solid waste materials. He has co-authored two books: Fiber Reinforced Cement Based Composites and Fracture Mechanics of Concrete. He has published more than 400 journal articles and edited more than a twenty books. He is past editor in chief of RILEM's journal Materials and Structures.

Professor Shah is a member of the National Academy of Engineering. He has received many awards including the Swedish Concrete Award, ACI Anderson Award, RILEM Gold Medal, ASTM Thompson Award, ASCE Charles Pankow Award, and Engineering News Record's News Maker Award. He is a member of the National Academy of Engineering. He spent time recently as an Honorary Professor at the Indian Institute of Technology, Bombay, under a Fulbright grant. Most recently he has been named to the Indian National Academy of Engineering.

Besides teaching at Northwestern, he has taught at the University of Illinois at Chicago and served as a visiting professor at MIT, University of Sidney, Denmark Technical University, University of Singapore, Darmstadt Technical University, and LCPC, Paris. He is currently an honorary professor at the Hong Kong Polytechnical University.

Norm Wood, P.Eng
Vice President RMX Quality Assurance & New Product Development-Western Canada
Lafarge Canada Inc.

SCC: Barriers to Acceptance
Over the years the ready mix industry has introduced many new products to customers. These new products range from ready mix concrete with new admixtures that provide enhanced performance to completely new ready mix systems such as SCC. These new systems have potential to revolutionize the entire industry. However, to move forward, many barriers to acceptance must be overcome. This presentation will outline many barriers seen by the author over time.

Biography
Norm Wood obtained a Bachelor of Science degree in Civil Engineering at the University of Alberta in 1971. Upon graduation he worked in many varied capacities with Lafarge. He was initially involved with quality assurance and mix design development for ready mix concrete, soil cement, roller compacted concrete, asphaltic concrete, and quality control for the aggregates group. During his tenure at Lafarge, he has held many different positions in management and currently is Vice President of RMX Quality Assurance and New Product Development-Western Canada. He has participated in various committees over time and was charged with getting Lafarge's SCC mix working in Western Canada. Lafarge is currently rolling out two new ready mix products, and in addition, Norm is sitting on six different steering committees for new products that Lafarge is investigating worldwide.