Virtual Cement and Concrete Testing Laboratory for Quality Testing and Sustainability of Concrete
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Course
Virtual Cement and Concrete
Institution
Virtual Cement And Concrete
Jeffrey W. Bullard is a Materials Research Engineer in the Materials and Construction Research Division, National
Institute of Standards and Technology (NIST), Gaithersburg, MD. He received his B.S. in Ceramic Engineering
from the University of Missouri-Rolla and his M.S. and Ph.D. in Materials...
Virtual Cement and Concrete Testing Laboratory for Quality Testing and
Sustainability of Concrete
By J.W. Bullard, P.E. Stutzman, L.M. Ordoñez Belloc, E.J. Garboczi, and D.P. Bentz
Synopsis: The NIST-Industry Virtual Cement and Concrete Testing Laboratory (VCCTL) Consortium has
developed an integrated software package for performing simulations of a number of engineering test measurements,
including isothermal calorimetry, adiabatic temperature change, chemical shrinkage, elastic moduli, and
compressive strength. In the last two years, the software interface has been redesigned to be easier to navigate, with
online tutorials and documentation for easy reference. As a result, VCCTL is now ready to be integrated in
industrial settings as a supplemental tool to accelerate research on mix designs and to streamline routine quality
testing procedures. This paper will demonstrate the software interface, and two applications will be described to
illustrate the utility of the software to help solve practical problems. In the first application, we address
sustainability issues by investigating the replacement of coarse clinker particles with limestone and its effect on
elastic moduli and compressive strength. In the second application, we illustrate VCCTL’s potential for screening
the quality of incoming cement clinkers by providing rapid estimates of compressive strength development in mortar
specimens.
Keywords: Building technology; hydration; strength; microstructure; sustainability; virtual testing.
, Biography:
Jeffrey W. Bullard is a Materials Research Engineer in the Materials and Construction Research Division, National
Institute of Standards and Technology (NIST), Gaithersburg, MD. He received his B.S. in Ceramic Engineering
from the University of Missouri-Rolla and his M.S. and Ph.D. in Materials Science and Engineering from the
University of California, Berkeley. He is a member of the American Ceramic Society. His research interests include
computational modeling of microstructure development in concrete binders.
ACI member Paul E. Stutzman is a Physical Scientist in the Materials and Construction Research Division,
National Institute of Standards and Technology (NIST), Gaithersburg, MD. He received his A.B. in Geology from
Hanover College and his M.S. in Geology from Southern Illinois University at Carbondale in 1983. His primary
research interests include characterization of concrete materials using quantitative X-ray diffraction methods and
scanning electron microscopic imaging.
Luis M. Ordoñez Belloc is the Coordinator of the Hydraulic Binder Area of the Materials Research Technical Unit
at AIDICO-Construction Technology Institute, Valencia, Spain. He received his Ph.D. in Chemistry from the
Universidad Politecnica de Valencia, Spain in 2007. His research interests include application of pozzolanic
materials in concrete binders and the use of computer modeling in development and improvement of cement and
concrete sustainability.
ACI Fellow Edward J. Garboczi is the leader of the Inorganic Materials Group in the Materials and Construction
Research Division, National Institute of Standards and Technology (NIST), Gaithersburg, MD. He received his B.S.,
M.S., and Ph.D. in Physics from Michigan State University. He is a member of ACI Committee 236 (Materials
Science). His research interests include X-ray computed tomography of random materials, three-dimensional
particle shape analysis for cement, sand, gravel, and other particulate materials, and three-dimensional computer
models of the microstructure and performance of random materials.
ACI Member Dale P. Bentz is a Chemical Engineer in the Materials and Construction Research Division, National
Institute of Standards and Technology (NIST), Gaithersburg, MD. He received his B.S. in Chemical Engineering
from the University of Maryland and his M.S. in Computer and Information Science from Hood College. He is a
member of ACI Committees 231 (Early Age), 236 (Materials Science), and 308 (Curing). His research interests
include experimental and computer modeling studies of the microstructure and performance of materials.
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