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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In addition the electronic files may not be downloaded or distributed elsewhere over computer networks or otherwise. ASTM grants you a adtm as follows: Search book title Enter keywords for book title search. Please sign into an account with a subscription to this content, or email for help at support madcad.

The right to access the electronic files of ASTM Standards is for purposes of viewing for individual use only. Content only available by subscription. Size and shape requirements for diametral, axial, block, or irregular lump testing are presented in the test method. C2938 shall be free from abrupt irregularities that can generate stress concentrations.


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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.

Remember me for one month. If you like to setup a quick demo, let us sstm at support madcad. Enter your account email address to request a password reset: Register for a trial account. Print 1 2 3 4 5 page sstarting from page current page. 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.

ASTM D, Test equipment Controls

No further reproductions authorized. The point load test allows testing of rock specimens that do not meet the dimensional requirements of the uniaxial compression test.

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Please login to your authorized staff account to use this feature. The concentrated load is applied through coaxial, truncated conical platens.

The failure load is used to calculate the point load strength index and to estimate the uniaxial compressive strength. No items in cart.


Specimens in the form of core are preferred for a more precise classification. When testing irregular-shaped specimens obtained by other means at least 20 specimens are selected. You currently cannot view this content.

When testing core or block specimens at least ten specimens are selected.

The electronic file may not be reproduced in any way. Sample Size Requirements Rock samples are grouped on the basis of both rock type and estimated strength.