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AASHTO T 121M/T 121-11
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AASHTO T 121M/T 121-11 Standard Method of Test for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete (ASTM Designation: C 138/C 138M-09)
standard by American Association of State and Highway Transportation Officials, 2011
Full Description
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.Note--Unit weight was the previous terminology used to describe the property determined by this test method, which is mass per unit volume.
M00001805
2021-03-02
New product
AASHTO T 121M/T 121-11 Standard Method of Test for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete (ASTM Designation: C 138/C 138M-09)
standard by American Association of State and Highway Transportation Officials, 2011