ASTM-D7070 › Historical Revision Information
Standard Test Method for Creep of Rock Core Under Constant Stress and Temperature
The following bibliographic material is provided to assist you with your purchasing decision:
Scope
1.1 This test method covers the creep behavior of intact soft and hard rock core in fixed states of stress and temperature. It specifies the apparatus, instrumentation, and procedures for determining the strain as a function of time under sustained load. Hard rocks are those with a maximum axial strain at failure of less than 2 %. Soft rocks include such materials as salt and potash, which often exhibit very large strain at failure.
1.2 This standard replaces and combines the following Standard Test Methods now to be referred to as Methods:
Method A (D 5341 Creep of Hard Rock Core Specimens in Uniaxial Compression at Ambient/Elevated Temperatures);Method B (D 4405 Creep of Soft Rock Core Specimens in Uniaxial Compression at Ambient or Elevated Temperature); and Method C (D 4406 Creep of Rock Core Specimens in Triaxial Compression at Ambient or Elevated Temperature).1.3 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D 6026.
1.3.1 The method used to specify how data are collected, calculated, or recorded in this standard is not directly related to the accuracy to which the data can be applied in design or other uses, or both. How one applies the results obtained using this standard is beyond its scope.
1.3.2 The values stated in SI units are to be regarded as the standard.
1.4 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 to determine the applicability of regulatory limitations prior to use. For specific precautionary statements, see Section .
Keywords
compression testing; creep; deformation; loading tests; rock; triaxial compression; ICS Number Code 93.020 (Earth works. Excavations. Foundation construction. Underground works)
To find similar documents by ASTM Volume:
04.09 (Soil and Rock (II): D5877 - latest)
To find similar documents by classification:
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Document Number
ASTM-D7070-04
Revision Level
2004 EDITION
Status
Superseded
Modification Type
New
Publication Date
Sept. 1, 2004
Document Type
Test Method
Page Count
6 pages
Committee Number
D18.12