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AASHTO T 271-83 (2004)
- Standard Method of Test for Density of Plastic and Hardened Portland Cement Concrete In-Place by Nuclear Methods
- standard by American Association of State and Highway Transportation Officials,
- Publisher: AASHTO
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These methods cover the determination of the density of plastic and hardened concrete in-place by gamma radiation. Two methods are described: Direct Transmission and Backscatter.