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ASTM C138 Standard Test Method for Density (Unit Weight), Yield, and Air Content of Concrete
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YouTubeHeidelberg Materials North America
ASTM C138 Standard Test Method for Density (Unit Weight), Yield, and Air Content of Concrete
Overview of ASTM C138 - Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete. This is a test required to pass the American Concrete Institute (ACI) Field Technician Certification Program -- "Concrete Field Testing Technician—Grade I." A Concrete Field Testing Technician—Grade I is an individual ...
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