Density In place by the Sand Cone Method AASHTO T191 and Microwave Method of Drying Soil ASTM D436

This video demonstrates the Sand Cone Test (AASHTO T191) and Microwave Method of Drying Soils (ASTM D 4643) based on North Dakota DOT's modifications. This video has been provided courtesy of the North Dakota Department of Transportation with permission for viewing on TC3’s YouTube channel. Note that this video may include some state-specific verbiage; however, the content is beneficial to technical staff involved in highway operations regardless of geographic location. Anyone viewing this video should refer to their agency specifications and requirements, which they need to review and follow. For more information on available online training for technical staff in the areas of construction, maintenance, and materials, visit the AASHTO Store.