ASTM D2922-05
Standard Test Methods for Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth)

Standard No.

ASTM D2922-05

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D2922-05

Scope

1.1 These test methods cover the determination of the total or wet density of soil and soil-rock mixtures by the attenuation of gamma radiation where the source and detector(s) remain on the surface (Backscatter Method) or the source or detector is placed at a known depth up to 300 mm (12 in.) while the detector(s) or source remains on the surface (Direct Transmission Method). 1.2 The density in mass per unit volume of the material under test is determined by comparing the detected rate of gamma radiation with previously established calibration data. 1.3 The values tested in SI units are to be regarded as the standard. The inch-pound equivalents may be approximate. 1.4 It is common practice in the engineering profession to concurrently use pounds to represent both a unit of mass (lbm) and a unit of force (lbf). This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system. It is scientifically undesirable to combine the use of two separate sets of inch-pound units within a single standard. These test methods have been written using the gravitational system of units when dealing with the inch-pound system. In this system the pound (lbf) represents a unit of force (weight). However, the use of balances or scales recording pounds of mass (lbm), or the recording of density in lbm/ft 3 should not be regarded as nonconformance with these test methods. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific Hazard statements, see Section 6.

ASTM D2922-05 Referenced Document

• ASTM D1557 Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft³ (2,700 kN-m/m³))*， 2012-05-01 Update
• ASTM D2216 Standard Test Method for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass*， 1998-04-20 Update
• ASTM D3017 Standard Test Method for Water Content of Soil and Rock in Place by Nuclear Methods (Shallow Depth)*， 2001-06-10 Update
• ASTM D4253 Standard test method for maximum index density and unit weight of soil using a shaking table*， 2024-04-20 Update
• ASTM D4643 Standard Test Method for Determination of Water Content of Soil and Rock by Microwave Oven Heating*， 2017-02-01 Update
• ASTM D4718 Standard Practice for Correction of Unit Weight and Water Content for Soils Containing Oversize Particles*， 1987-04-20 Update
• ASTM D4944 Standard Test Method for Field Determination of Water (Moisture) Content of Soil by the Calcium Carbide Gas Pressure Tester Method*， 1998-04-20 Update
• ASTM D4959 Standard Test Method for Determination of Water Content of Soil By Direct Heating*， 2024-02-01 Update
• ASTM D698 Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12 400 ft-lbf/ft³ (600 kN-m/m³))*， 2024-04-20 Update

ASTM D2922-05 history

• 1970 ASTM D2922-05 Standard Test Methods for Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth)
• 2004 ASTM D2922-04e1 Standard Test Methods for Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth)
• 2004 ASTM D2922-04 Standard Test Methods for Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth)
• 2001 ASTM D2922-01 Standard Test Methods for Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth)
• 1996 ASTM D2922-96e1 Standard Test Methods for Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth)