GeoTesting Express is a provider of Rock Testing Services – ASTM D, Standard Test Method for Determination of Rock Hardness by Rebound Hammer . ASTM D Related standards: C, D, D, D, D, D, D Standard Test Method for Determination of Rock Hardness by Rebound. ASTM D Standard Test Method for Determination of Rock Hardness by Rebound Hammer Method. standard by ASTM International.
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Link to Active This link will always route to the current Active version of the standard. These applications include, for examples, the f5873 of penetration rates for tunnel boring machines, determination of rock quality for construction purposes, grouping of test specimens, and prediction of hydraulic erodibility of rock.
Earlier recommendations for rock mechanics applications were only for hammers with an impact energy of 0.
It is beyond the scope of this standard to consider significant digits used in analytical methods for engineering design. No other units d5837 measurement are included in this standard. Work Item s – proposed revisions of this standard. For the same rock or material, rebound numbers obtained from different hammers are not comparable.
Historical Version s – view previous versions of standard. Note 1 — Several types of rebound hammers are commercially available to accommodate testing of various sizes and types of rock. Hammers with energies above 0. This test method applies only to hammers with an impact energy not to exceed 0.
ASTM D – 14 Standard Test Method for Determination of Rock Hardness by Rebound Hammer Method
Agencies that meet the d55873 of Practice D are generally considered capable of competent and objective testing and sampling. Referenced Documents purchase separately The documents listed below are referenced within d58873 subject standard but are not provided as part of the standard. In addition, they are representative of the significant digits that generally should be retained.
Reliable results depend on many factors; Practice D provides a means of evaluating some of those factors.
Test Method D provides more information on compressive strength of rock. Users of this test method are cautioned that compliance with Practice D does not in itself assure reliable results.
ASTM D – 05 Standard Test Method for Determination of Rock Hardness by Rebound Hammer Method
For a given plunger tip diameter and radius of curvature, the impact ashm of the rebound hammer determines its range of applicability. Accordingly, this limitation should be kept in mind when selecting a hammer type. 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.
Care should be taken when testing such rocks and conglomerates as the rebound values will vary between testing a large piece of aggregate versus softer matrix of the conglomerate.
Note 2 — The quality of the result produced by this test method is dependent on the competence of the personnel ashm it and the suitability of the equipment and facilities used.