|Virtual Cement and Concrete Tutorial to be Presented by ASTM Committees C01 and C09
A one-hour tutorial session on the Virtual Cement and Concrete Testing Laboratory (VCCTL) concept will be held Wed., June 26 in Salt Lake City, Utah, beginning at 11 a.m. The National Institute of Standards and Technology, Gaithersburg, Md., is developing the concept in collaboration with industry. The concept, which may influence the future development of cement and concrete standards, should be of interest to members of Committees C01 on Cement and C09 on Concrete and Concrete Aggregates, or anyone interested in new technology for cement and concrete.
Geoffrey Frohnsdorff, vice-chair of ASTM Committee C01 on Cement and NIST guest researcher, will lead the tutorial. Recently retired, Frohnsdorff conducted research for 29 years at the NIST Building and Fire Research Laboratory.
According to Frohnsdorff, modern analytical equipment and information technology should enable the use of computer-based models to predict the performance of concrete and other cement-based materials with a high degree of confidence. To do this, the characteristics of the constituents, the mixture proportions, and the curing and exposure conditions must be adequately known.
Some of the leading cement companies in the world are participating in research on the VCCTL concept with NIST. Frohnsdorff will describe progress and will discuss possible implications for standards development, both in terms of the standards needed to provide quantitative characterization of starting materials and hydrating systems, and the possible use of VCCTL-like systems as the basis for future standards. Potential uses are in:
Quality control and quality assurancereduction in physical testing;
Performance and cost optimization; and
Virtual design and development.
If we had enough knowledge of the chemistry and physics, Frohnsdorff explained, then we should really be able to predict how the materials would behave without having to test them. So it would be bringing a very much higher degree of science into cement and concrete technology than now exists.
And it would change the way testing is done, he said. It would save quite a lot of money. You would have to invest initially in equipment but ultimately it would save a lot of testing. It means you could optimize materials better because you could predict in advance how they would perform.
To register or obtain further technical information, contact Geoffrey Frohnsdorff, Building and Fire Research Laboratory, National Institute of Standards and Technology, Gaithersburg, Md. (phone 301/975-6744). ASTM cement and concrete committees meet in Salt Lake City, Utah, this June: Committee C01 meets June 26-28; Committee C09 meets June 23-26. For meeting or membership details, contact Jim Olshefsky, manager, ASTM technical committees (phone: 610/832-9714). //
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