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Activity Number:
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481
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Type:
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Contributed
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Date/Time:
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Wednesday, August 9, 2006 : 2:00 PM to 3:50 PM
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Sponsor:
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Section on Physical and Engineering Sciences
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| Abstract - #306501 |
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Title:
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Data Analysis of Virtual Cement Measurements
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Author(s):
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Adriana Hornikova*+ and Charles Hagwood and Hung-kung Liu and Blaza Toman and Nien Fan Zhang and Edward J. Garboczi and Jeffrey W. Bullard
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Companies:
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National Institute of Standards and Technology and National Institute of Standards and Technology and National Institute of Standards and Technology and National Institute of Standards and Technology and National Institute of Standards and Technology and National Institute of Standards and Technology and National Institute of Standards and Technology
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Address:
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100 Bureau Drive, Gaithersburg, MD, 20899-8980,
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Keywords:
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data analysis ; virtual measurements ; simulations ; sensitivity analysis ; verification and validation
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Abstract:
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Virtual measurements are the outputs of well-defined mathematical models based on theoretical principles and simulation algorithms. The VCCTL (Virtual Cement and Concrete Testing laboratory) is a software system built by the Material and Construction Research Division of NIST to perform these computations. Its intended use is as a research/exploratory tool to test new cement compounds for their properties. This presentation describes our efforts at verification and validation of the VCCTL software. We have performed sensitivity analysis of the VCCTL measurements of heat of hydration with respect to changes in various input variables. We have also examined the effects of choice of random seeds in the simulations. For a particular subset of Portland cements, it is possible to compare physical measurements obtained by large inter laboratory experiments to the VCCTL virtual measurements.
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