air voids Archives | The American Ceramic Society

air voids

Manually counting concrete air voids?

By / March 15, 2009

Is this still the 1990s? I am no expert on concrete, but is it true that major highway departments still typically manually count air voids in concrete, as this story seems to indicate? “They look at 1,300 points across the surface and count the number of entrained and entrapped voids,” she said. “It is a…

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