GeoTesting Express is a provider of Rock Testing Services – ASTM D, Standard Test Method for Unconfined Compressive Strength of Intact Rock Core . All the Controls products ASTM D standard. Enter now!. ASTM D “Standard Test Method for Unconfined ASTM D “ Standard Test Methods for Compressive Strength and.

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Specimens in the form of core are preferred for a more precise classification.

Please sign into an account with a subscription to this content, or email for help at support madcad. Print 1 2 3 4 5 page sstarting from page current page. The point load test allows testing of rock specimens that do not meet the dimensional requirements of the uniaxial compression test.

Enter your account email address to request a password reset: Sample Size Requirements Rock samples are grouped on the basis of both rock type and estimated strength. The uniaxial compression test see ASTM D is used to determine compressive strength of rock specimens, but it is a time-consuming and expensive test that requires specimen preparation.


Specimens shall be free from atm irregularities that can generate stress concentrations. The right to access the electronic files d29938 ASTM Standards is for purposes of viewing for individual use only.

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Enter your personal account email address to request a password reset: The failure load is used to calculate the point load strength index and to estimate the uniaxial compressive strength.

When extensive testing is required for preliminary and reconnaissance information, alternative atsm such as the point load test can be used in aatm field or laboratory to reduce the time and cost of compressive strength tests.

The concentrated load is applied through coaxial, truncated conical platens. Register for a trial account.

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Please login to your authorized staff account to use this feature. Size and shape requirements for diametral, axial, block, or irregular lump testing are presented in the test method. There were no books found for the applied search filters.


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When testing core or block specimens at least ten specimens are selected. If you like to setup a quick demo, let us know at support madcad. ASTM grants you a license as follows: In addition the electronic files may not be downloaded or distributed elsewhere over computer networks or otherwise.

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When testing irregular-shaped specimens obtained by other means at least 20 specimens are selected. Are you sure you want to empty the cart?

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