Super Air Meter gauges void spacing, passes AASHTO muster

SuperAir 150

Sources: Oklahoma State University, Stillwater; CP staff

The American Association of State Highway and Transportation Officials’ new standard, “Characterization of the Air-Void System of Freshly Mixed Concrete by the Sequential Pressure Method,” validates a device measuring void spacing and air content in about 10 minutes. The Super Air Meter (SAM) is a modified version of the vessel used in ASTM C231, Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method, and was developed at Oklahoma State University.

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