ASTM D4535-21
Standard Test Methods for Measurement of Thermal Expansion of Rock Using Dilatometer

Standard No.

ASTM D4535-21

Release Date

2021

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D4535-21

Scope

1.1 These test methods cover the laboratory measurement of the one-dimensional linear thermal expansion of rocks using a dilatometer. 1.2 The methods are applicable between temperatures of 25°C to 300°C. Both bench top and confined measurement techniques are presented. Method A is used for unconfined or bench top measurements and Method B is used for confined conditions. Rocks of varying moisture content can be tested. 1.3 For satisfactory results in conformance with these test methods, the principles governing the size, construction, and use of the apparatus described in these test methods shall be followed. If the results are to be reported as having been obtained by either test method, then the pertinent requirements prescribed by that test method shall be met. 1.4 These test methods do not establish details of construction and procedures to cover all test situations that might offer difficulties to a person without technical knowledge concerning the theory of heat flow, temperature measurement, and general testing practices. Standardization of these test methods does not reduce the need for such technical knowledge. 1.5 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. Reporting of test results in units other than SI shall not be regarded as nonconformance with this test method. 1.6 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026. 1.6.1 The procedures used to specify how data are collected/ recorded or calculated, in this standard are regarded as the industry standard. In addition, they are representative of the significant digits that generally should be retained. The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the user’s objectives; and it is common practice to increase or reduce significant digits of reported data to be commensurate with these considerations. It is beyond the scope of this standard to consider significant digits used in analytical methods for engineering design. 1.7 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D4535-21 Referenced Document

• ASTM D2216 Standard Test Method for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass
• ASTM D3740 Standard Practice for Minimum Requirements for Agencies Engaged in the Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
• ASTM D6026 Standard Practice for Using Significant Digits in Geotechnical Data
• ASTM D653 Standard Terminology Relating to Soil, Rock, and Contained Fluids
• ASTM E122 Standard Practice for Calculating Sample Size to Estimate, With a Specified Tolerable Error, the Average for Characteristic of a Lot or Process
• ASTM E228 Standard Test Method for Linear Thermal Expansion of Solid Materials With a Vitreous Silica Dilatometer
• ASTM E83 Standard Practice for Verification and Classification of Extensometer

ASTM D4535-21 history

• 2021 ASTM D4535-21 Standard Test Methods for Measurement of Thermal Expansion of Rock Using Dilatometer
• 2013 ASTM D4535-13e2 Standard Test Methods for Measurement of Thermal Expansion of Rock Using Dilatometer
• 2013 ASTM D4535-13e1 Standard Test Methods for Measurement of Thermal Expansion of Rock Using Dilatometer
• 2013 ASTM D4535-13 Standard Test Methods for Measurement of Thermal Expansion of Rock Using Dilatometer
• 2008 ASTM D4535-08 Standard Test Methods for Measurement of Thermal Expansion of Rock Using Dilatometer
• 1985 ASTM D4535-85(2004) Standard Test Methods for Measurement of Thermal Expansion of Rock Using a Dilatometer
• 1985 ASTM D4535-85(2000) Standard Test Methods for Measurement of Thermal Expansion of Rock Using a Dilatometer