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ASTM D5607 PDF

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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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Testing equipment for the construction industry – CONTROLS

Examples of an artificial discontinuity include a rock-concrete interface or a lift line from a concrete pour. It is beyond the scope of these test methods to consider significant digits used in analysis methods for engineering design. During the test, shear strength is determined at various applied stresses normal to the sheared plane and at various shear displacements.

Two versions are available:. Only one discontinuity per specimen can be tested.

The shear box consists of two halves, the upper being connected to two rams for reversible shearing action and the lower connected to a ram for normal load application. In situ direct shear testing limits the inherent scale effects found in rock mechanics problems where the laboratory scale may not be representative of the field scale.

The actual contact areas during testing change, but the actual total contact surface is unmeasurable. Relationships derived from the test data include shear strength versus normal stress and shear stress versus shear displacement shear stiffness. Privacy Policy Sensors Sitemap.

In addition, they are representative of the significant digits that generally should be retained. For more info please refer to Releted Products below and Accessories section. A summary of peak shear stress, peak residual shear stresses, and residual shear stresses A figure of peak residual stress and residual shear stress vs.

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. Clearly label the sample with source, date taken, intact or sliding friction, and a short, unambiguous, identification code. 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.

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When the normal load is large enough to completely restrain dilation, the shear mechanism consists of the shearing off of the asperities. 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.

Link to Active This link will always route to the current Active version of 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. Therefore nominal area is used for loading purposes and calculations. Referenced Documents purchase separately The documents listed below are referenced within the subject standard asrm are not provided as part of the standard.

Samples should be concrete or rock cores with a diameter no greater than This apparatus was originally developed at Imperial college, London, by Professor E. Therefore, the precise prediction of rock mass behavior is difficult.

Samples should be sealed in a plastic wrap inside their shipping container, protected against air, moisture, and direct sunlight.

Two set of cables are required.

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. Shear box made in aluminium alloy Maximun axial and shear load capacity: Report of direct shear strengths five to nine pages depending on sample type including the following:. The test is usually conducted in the undrained state with an applied constant normal load.

Order Form 2 Email complete form to contact listed below. Sliding on and shearing of the asperities can occur simultaneously. Relationships derived axtm the test data include shear strength versus normal stress and shear stress versus shear displacement shear stiffness.

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. Referenced Documents purchase separately The documents listed below are referenced within r5607 subject standard but are not provided as part of the standard.

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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. Reporting of test results in units other than SI shall not be regarded as nonconformance with this test method.

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Atm of an artificial discontinuity include a rock-concrete interface or a lift line from a concrete pour. Historical Version s – view previous versions of standard. ASTM D Use This test method establishes requirements and laboratory procedures for performing direct shear strength tests on rock specimens.

The apparatus consists of a shear box designed to accept samples not larger than x mm, or alternatively cores up to mm dia. Displacement and load readings shall be acquired by suitable datalogger that has to be add as accessory. Discontinuities may be open, partially or completely healed or filled that is, clay fillings and gouge. 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.

It is a simple and practical method of determining the strength and slope stability of rock, both in the field and in the laboratory.

The test is usually conducted in the undrained state with an applied constant normal load. 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. Link to Active This link will always route to the current Active version of the standard. Print and complete the following order form.

Rock shear box apparatus

The values given in parentheses are mathematical conversions to inch-pound units, which are provided for information only and are not considered standard. Active view current version of standard.

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. Instructions Samples should be concrete or rock cores with a diameter no greater than