ASTM D4436-04
Historical Standard: ASTM D4436-04 Standard Test Method for Rock Bolt Long-Term Load Retention Test
SUPERSEDED (see Active link, below)
ASTM D4436
1. Scope
1.1 The objective of this test method is to determine the time over which rock bolt tension decreases from the installed value to a designated minimum value.
1.2 This test method is applicable to any anchor system which is not fully encapsulated immediately upon installation, including mechanical, cement grout, resin (epoxy, polyester, and the like) or other similar systems.
1.3 The values stated in inch-pound units are to be regarded as the standard.
1.4 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D 6026.
1.4.1 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.
1.5 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.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D653 Terminology Relating to Soil, Rock, and Contained Fluids
D3740 Practice for Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
D4435 Test Method for Rock Bolt Anchor Pull Test
D6026 Practice for Using Significant Digits in Geotechnical Data
D6167 Guide for Conducting Borehole Geophysical Logging: Mechanical Caliper
Keywords
anchors (rock); field testing; loading tests; mines; pull testing; rock; Pull testing; Rock materials/properties/analysis; Anchor bolts; Field testing--rock; Loading tests--rock/related materials; Mines;
ICS Code
ICS Number Code 93.020 (Earth works. Excavations. Foundation construction. Underground works)
DOI: 10.1520/D4436-04
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