Prediction of Cement Physical Properties by Virtual Testing.
Prediction of Cement Physical Properties by Virtual
Haecker, C. J.; Bentz, D. P.; Fen, X. P.; Stutzman, P.
Process Technology of Cement Manufacturing, Fifth (5th)
International VDZ Congress. VDZ Confress 2002.
Proceedings. September 23-27, 2002, Dusseldorf,
Germany, 53-63 pp, 2003.
Cement International, Vol. 1, No. 3, 86-92, 2003.
cements; physical properties; microstructure; quality
assurance; modeling; simulation; virtual measurement
Assuring the quality of the massive quantities of cement
produced worldwide each year is a daunting task.
Currently, the cement industry performs extensive
physical testing to assess the quality of their product,
resulting in large costs for both materials (and their
disposal) and labor. One of the major goals of the
Virtual Cement and Concrete Testing Laboratory (VCCTL)
consortium is to provide the technology to reduce the
number of necessary physical tests. In this paper, the
ability of the VCCTL to successfully predict a wide
variety of cement paste physical properties is
demonstrated. Predicted physical properties are compared
to experimental measurements for degree of hydration,
heat of hydration, chemical shrinkage, setting time,
compressive strength development, and pore solution
concentrations. When the starting materials are
characterized in detail, good agreement is exhibited
between VCCTL model predictions and experimental
measurements, highlighting the potential for this
virtual technology to ultimately save the cement
industry both time and money.