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Stereological and Statistical Properties of Entrained Voids in Concrete: A Mathematical Basis for Air Void System Characterization.

Stereological and Statistical Properties of Entrained
Voids in Concrete: A Mathematical Basis for Air Void
System Characterization.
(3284 K)

Snyder, K. A.; Natesaiyer, K.; Hover, K.

Materials Science of Concrete VI. Proceedings.
American Ceramic Society. December 2001, Mindess, S.;
Skalny, J., Editor(s)(s), 129-214 pp, 2001.

### Keywords:

concretes; air-void system; air-void spacing

### Abstract:

*
To understand the freeze-thaw properties of hardened
concrete, the air void system must be characterized.
Studies of the stereological and statistical properties
of entrained air voids in concrete have often involved a
number of steps: sample preparation and air void
identification, linear and planar analyses of a polished
surface, uncertainty analysis of the recorded data,
parametric and non-parametric estimates of the air void
diameter distribution, and analysis of the air void
system spatial statistics. Each of these steps has been
discussed in detail by a number of engineering fields.
For the civil engineering researcher, a comprehensive
study of these properties requires consulting many
varied texts, each addressing these steps individually.
This Chapter attempts to consolidate these topics into a
single desk reference. The researcher can then realize
the interdependencies of these topics, learn to
accurately characterize the air void system
microstructure, and develop an understanding of the
basis for standardized test methods such as ASTM C 457.
*