ASTM D6031/D6031M
Standard Test Method for Logging In Situ Moisture Content and Density of Soil and Rock by the Nuclear Method in Horizontal, Slanted, and Vertical Access Tubes
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About This Item
ASTM D6031/D6031M is the standard test method for logging in situ moisture content and density of soil and rock by the nuclear method in horizontal, slanted, and vertical access tubes. It provides a technical basis for measuring conditions directly in the ground where access tubes are installed, helping support more consistent field evaluation and recordkeeping. Used as a standards reference, ASTM D6031/D6031M helps align testing practices with a recognized method for subsurface moisture and density logging.
ASTM D6031/D6031M standard overview
This ASTM standard addresses a nuclear method for logging in situ moisture content and density of soil and rock through access tubes positioned horizontally, slanted, or vertically. Its focus is on obtaining measurements within the ground rather than from disturbed samples, which makes it relevant to field-based assessment and documentation. The designation also includes both inch-pound and metric units, supporting use in mixed-unit specifications, quality programs, and technical project requirements. ASTM D6031/D6031M is therefore a practical reference for standardized subsurface testing.
Where is ASTM D6031/D6031M used?
This standard is commonly used in geotechnical field work where moisture content and density need to be logged at depth along an access tube. It may support site investigation, construction monitoring, and field verification in soil and rock conditions where in situ measurements are preferred. The method is especially relevant when project teams need repeatable data from horizontal, slanted, or vertical tube installations. ASTM D6031/D6031M is useful wherever nuclear logging is part of a controlled testing workflow.
Practical importance of ASTM D6031/D6031M
The practical value of ASTM D6031/D6031M lies in helping users apply a consistent approach to in situ moisture and density logging. That consistency supports compliance efforts, data comparability, and clearer acceptance decisions in field testing programs. For procurement and quality control teams, a recognized ASTM standard can help reduce ambiguity when specifying testing methods or documenting results. It also supports risk reduction by providing a common technical reference for measurements taken in access tubes.
- Nuclear method for in situ logging
- Moisture content and density measurements
- Horizontal, slanted, and vertical access tubes
- Soil and rock applications
- Field testing and documentation reference
- Publication Date: 2024-01-12
- Publisher: ASTM
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