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AASHTO T121 – Standard Method of Test for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete


This method covers determination of the density of freshly mixed concrete and gives formulas for calculating the yield, cement content, and the air content of the concrete. Yield is defined as the volume of concrete produced from a mixture of known quantities of the component materials.


air content; concrete; density; unit weight; yield

AASHTO T121 Accredited Laboratory

Applied Testing & Geosciences, LLC is accredited for performing tests using the AASHTO T121 standard.

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