Development of design parameters for virtual cement and concrete testing : [summary].
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2013-12-01
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Abstract:At its most basic, concrete is made from cement
and aggregate, often Portland cement and gravel
(or in Florida, limestone). Varying ingredients and
their proportions directly influences the behavior
of the final cement and concrete products.
However, the full range of testing necessary
to characterize the behavior of new concrete
mixtures is an expensive and time-consuming task.
The chemistry of concrete is complex, but
research has laid a foundation of knowledge about
the chemistry of concrete’s constituents that has
allowed the National Institute of Standards and
Technology to develop a software package, Virtual
Concrete and Cement Testing Laboratory (VCCTL),
that can predict the performance of concrete
mixes. VCCTL requires an essential ingredient of
its own to make accurate predictions: thorough
characterization of the materials being simulated,
especially in the case of materials drawn from a
specific location, such as Florida limestone.
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