ASTM D5607 PDF

April 4, 2020 0 Comments

GeoTesting Express is a provider of Rock Testing Services – ASTM D – Sliding Friction,(Rock Sliding Friction) Standard Test Method for Performing. GeoTesting Express is a provider of Rock Testing Services – ASTM D – Direct Shear,(Rock Direct Shear) Standard Test Method for Performing Laboratory. Lab ID: ASTM D Use. This test method establishes requirements and laboratory procedures for performing direct shear strength tests on rock specimens.

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Samples should be sealed in a plastic wrap inside their shipping container, protected against air, moisture, and direct sunlight. When the normal force is not sufficient to restrain dilation, the shear mechanism consists of the overriding of the asperities.

Order Form 2 Email complete form to contact listed below. Discontinuities may be open, partially or completely healed or filled that is, clay fillings and gouge.

The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. It is beyond the scope of these test methods to consider significant digits used in analysis methods for engineering design. Link to Active This link will always route to the current Active version of the standard.

The actual contact areas during testing change, but the actual total contact surface is unmeasurable. Please contact a CTLGroup chemical services representative or Project Manager to discuss your individual project needs and testing response times. Results Produced Report of direct shear strengths five to nine pages depending on sample type including the following: Examples of an artificial discontinuity include a rock-concrete interface or a lift line from a concrete pour.

The constant normal load boundary condition is appropriate for problems where the normal stress is constant along the discontinuity.

Sliding on and shearing of the asperities can occur simultaneously. Historical Version s – view previous versions of standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. For more info please refer to Releted Products below and Accessories section. During the test, shear strength is determined at various applied stresses normal to the sheared plane and at various shear displacements.

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Instructions Samples should be concrete or rock cores with a diameter no greater than In addition, they are representative of the significant digits that generally should be retained. Active view current version of standard. Only one discontinuity per specimen can be tested. Two versions can be used to complete the testing configuration: The constant normal load boundary condition may not be appropriate for problems where shearing is dilatancy controlled and the normal stress is not constant along the discontinuity.

Only one discontinuity per specimen can be tested. Shear box made in aluminium alloy Maximun axial and shear load capacity: During the test, shear strength is determined at various applied stresses normal to the sheared plane and at various shear displacements. Relationships derived from the test data include shear strength versus normal stress and shear stress versus shear displacement shear stiffness.

The apparatus consists of a shear box designed to accept samples not larger than x mm, or alternatively cores up to mm dia. Pervasive discontinuities joints, bedding planes, shear zones, fault zones, schistosity in a rock mass, and genesis, crystallography, texture, fabric, and other factors can cause the rock mass to behave as an anisotropic and heterogeneous discontinuum. Therefore nominal area is used for loading purposes and calculations. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part d567 the standard.

It includes procedures for both intact rock strength and sliding friction tests which can be performed on specimens that are homogeneous, or have planes of weakness, including natural or artificial discontinuities. Atm this test method makes no provision for the measurement of pore pressures, the strength values determined are expressed in terms of total stress, uncorrected for pore pressure.

This test method establishes requirements and laboratory procedures for performing direct shear strength tests on rock specimens. Two set of cables are required.

Rock shear box apparatus

satm It is a simple and practical method of determining the strength and slope stability of rock, both in the field and in the laboratory. This apparatus was originally developed at Imperial college, London, by Professor E. When the normal load is large enough to completely restrain dilation, the shear mechanism consists of the shearing off of the asperities.

The values given in parentheses are mathematical conversions to inch-pound units, which are provided for information only and are not considered standard. Reporting of test results in units other than SI shall not be regarded as nonconformance with this test method. Privacy Policy Sensors Sitemap. The normal loading system is complete with an adjustable low friction pressure maintainer to absorb volume changes of the specimen during the shearing action and to ensure a constant vertical stress.

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Note 1—The term “normal force” is used in the title instead of normal stress because of the indefinable area of contact and the minimal relative displacement between upper and lower halves of the specimen during testing. Note 2—Since this test method makes no provision for the measurement of pore pressures, the strength values determined are expressed in terms of total stress, uncorrected for pore pressure. The actual contact areas during testing change, aastm the actual total contact surface is unmeasurable.

Examples of an artificial discontinuity include a rock-concrete interface or a lift line from a concrete pour. Users of this standard are cautioned that compliance with Practice D does not in itself assure reliable results. It includes procedures for both intact rock strength and sliding friction tests, which d56007 be performed on specimens that are homogeneous, or have planes of weakness, including natural or artificial discontinuities.

Testing equipment for the construction industry – CONTROLS

Therefore, it may be necessary to handle specimens in accordance with Practice D and to document moisture conditions in some manner in the data collection. The shear box consists of awtm halves, the upper being connected to two rams for reversible shearing action and the lower connected to a ram for normal load application.

ASTM D Use This test method establishes requirements and laboratory procedures for performing direct shear strength tests on rock specimens. A summary of peak shear stress, peak residual d567 stresses, and residual shear stresses A figure of peak residual stress and residual shear stress vs. Reliable results depend on many factors, Practice D provides asstm means of evaluating some of those factors. Therefore, the precise prediction of rock mass behavior is difficult.

Report of direct shear strengths five to nine pages depending on sample type including the following:.