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Virtual Cement and Concrete Testing Laboratory Consortium Annual Report 2001.


pdf icon Virtual Cement and Concrete Testing Laboratory Consortium Annual Report 2001. (1092 K)
Bentz, D. P.

NISTIR 6840; 32 p. December 2001.

Available from:

National Technical Information Service (NTIS), Technology Administration, U.S. Department of Commerce, Springfield, VA 22161.
Telephone: 1-800-553-6847 or 703-605-6000;
Fax: 703-605-6900; Rush Service (Telephone Orders Only) 800-553-6847;
Website: http://www.ntis.gov
Order number: PB2002-101310

Keywords:

concretes; cements; cement hydration; elastic moduli; materials science; microstructures; rheology; virtual testing; visualization

Abstract:

The Virtual Cement and Concrete Testing Laboratory (VCCTL) consortium was formed in January of 2001. Headquartered in the Building and Fire Research Laboratory at the National Institute of Standards and Technology (NIST), the consortium currently consists of NIST and six industrial members: Cemex, Dyckerhoff Zement GmbH, Holcim Inc., Master Builders Technologies, the Portland Cement Association, and W.R. Grace & Co.- Conn. The overall goals of the consortium are to develop a virtual testing system to reduce the amount of physical concrete testing and expedite the research and development process. This will result in substantial time and cost savings to the concrete construction industry as a whole. The three major initial research topics of the consortium are: 1) enhancements to the cement hydration and microstructure development model to consider additional supplementary materials such as slags and limestone and the prediction of pore solution concentrations, 2) computation of the elastic properties of three-dimensional microstructures, and 3) experimental measurement and computer modeling of the rheological properties of cement-based materials. Progress made during the first year in each of these three areas is presented in this report.