Figure F12. A, B. Comparison between bulk density measured by gamma ray attenuation (GRA) and the moisture and density (MAD) methods. C. Correlation of grain density (GD) vs. bulk density (BD; MAD method). D. Correlation of porosity vs. BD (MAD method). E. Correlation of P-wave velocity sensor (PWS3) and BD (MAD method) measurements.

Figure F12. A, B. Comparison between bulk density measured by gamma ray attenuation (GRA) and the moisture and density (MAD) methods. C. Correlation of grain density (GD) vs. bulk density (BD; MAD method). D. Correlation of porosity vs. BD (MAD method). E. Correlation of P-wave velocity sensor (PWS3) and BD (MAD method) measurements.