AASHTO T 121M/T 121-15
- Standard Method of Test for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete (ASTM Designation: C 138/C 138M-10a)
- standard by American Association of State and Highway Transportation Officials, 2015
- Publisher: AASHTO
$19.00$37.00
Note: Unit weight was the previous terminology used to describe the property determined by this test method, which is mass per unit volume.
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