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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Size and shape requirements for s2938, axial, block, or irregular lump testing are presented in the test method. Content only available by subscription. No further reproductions authorized.

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No items in cart. When testing core or block specimens at least ten specimens are selected. Please sign into an account with axtm subscription to this content, or email for help at support madcad. ASTM grants you a license as follows: Search book title Enter keywords for book title search. Enter your asrm account email address to request a password reset: Remember me for one month. Sample Size Requirements Rock samples are grouped on the basis of both rock type and estimated strength.


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Enter your account email address to request a password reset: The point load test allows testing of rock specimens that do not meet the dimensional requirements of the uniaxial compression test. The concentrated load is applied through coaxial, truncated conical platens.

The electronic file may not be reproduced in any way. Specimens in the form of core are preferred for a more precise classification. 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.

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

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Register for a trial account. When testing irregular-shaped specimens obtained by other means at least 20 specimens are selected.

In addition the electronic files may not be downloaded or distributed elsewhere over computer networks or otherwise. You currently cannot view this content. The failure load is used to calculate the point load strength index and to estimate the uniaxial compressive strength.


There were no books found for the applied search filters. When extensive testing is required for preliminary and reconnaissance information, alternative tests such as the point load test can be used in the field or laboratory to reduce the time and cost of compressive strength tests.

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