ASTM D4123 PDF

June 25, 2020 0 By admin

ASTM D() Standard Test Method for Indirect Tension Test for Resilient Modulus of Bituminous Mixtures. We supply testing equipment to perform. to the EN , Annex C and the ASTM D standards. two American ones: ASTM D Standard for the Complex Modulus, and the ASTM D. () ASTM D, Standard Test Method for Indirect Tension Test for Resilient Modulus of Bituminous Mixtures.

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ASTM D astmimportantespara la destilacion a presiones inferiores de 1 atm, archivo actualizadoen la ultima version. Copyright ASTM Standard Test Method for Indirect Tension Test for Resilient Modulus of Bituminous Mixtures1 This standard is issued under the fixed designation D ; the number immediately following the designation indicates the year of original adoption or, d41223 the case of revision, the year of last revision.

A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates aastm editorial change since the last revision or reapproval. The load is applied vertically in the vertical diametral plane of a cylindrical specimen of asphalt concrete Fig. The instantaneous resilient modulus is calculated using the recoverable deformation that occurs instantaneously during the unloading portion of one cycle.

astm d4123.pdf

The total resilient modulus is calculated using the total recoverable deformation which includes both the instantaneous recoverable and the timedependent continuing recoverable deformation during the unloading and rest-period portion of one cycle. The procedure described covers a range of temperatures, loads, loading frequencies, and load durations.

This recommended series will r4123 in nine test values for one ast, which can be used to evaluate the overall resilient behavior of the mixture.

NOTE 1—Ambient laboratory temperature may be substituted as appropriate. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the satm of regulatory limitations prior to use. Significance and Use 4. The test can be used to study effects of temperature, loading rate, rest periods, etc.

Since the procedure is nondestructive, tests can be repeated on a specimen to evaluate conditioning as with temperature or moisture. This test method is not intended for use in specifications. NOTE 2—An electrohydraulic testing machine with a function asrm capable of producing the desired wave form has been shown to be suitable for use in repeated-load indirect tension testing. Other commercially available or laboratory constructed testing machines such as those using pneumatic repeated loading can also be used.

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However, these latter machines may not have the load capability to handle larger specimens at the colder testing temperatures. Summary of Test Method 3. The system should include a temperature-controlled cabinet large enough to hold at least three specimens for a period of 24 h prior to testing.

Current edition approved April 30, The sensitivity and type of measurement device should be selected to provide x4123 deformation readout required in 5.

A positive contact by spring loading or gluing attachments to the specimen should be provided if direct contact between the measuring device and sample is required. If the transducers are temperature-sensitive, such as Statham UC-3, the testing machine should be placed astj a controlled temperature chamber. The gages ast be wired to preclude the effects of eccentric loading so as to give the algebraic sum of the movement of each side of the specimen.

Alternatively, each gage can be read independently and the results summed independently. Specimens will normally be either a nominal 4 or 6 in. The load e4123 shall be 0. Edges should be rounded by grinding to remove the sharp edge in order not asmt cut the sample during testing.

For specimens with rough textures, a thin hard rubber membrane attached to the loading strip has been found effective in reducing stress concentration effects, but should be used only when vertical deformations are not measured.

The specimens should have a height of at least 2 in. Unless the temperature is monitored, and the actual temperature 5. The system should be capable of measuring horizontal deformations in the range of 0. Loads should be 3 4 2 Available from Trans-tek D4213. Available from Gould-Statham, Statham Blvd. D the same specimen should be for conditions producing progressively lower moduli. Bring the specimens to the specified temperature before each test.

NOTE 4—A dummy specimen with a thermocouple in the center can be used to determine when the desired test temperature is asmt. Adjust and balance the electronic measuring system as necessary.

ASTM D, Test equipment Controls

D1423 upon the loading frequency and temperatures, a minimum of 50 to load repetitions is typical; however, the minimum for a given situation must be determined so that the resilient deformations are stable Note 5. Tensile strength can be determined from a destructive test on a specimen and the equation of 8.

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NOTE 5—As few as five repetitions have been found to be sufficient for loads such as 5 to 25 lbf. NOTE 6—Loads as low as 10 lbf have been used.

NOTE 7—Load duration is the more important variable and it is recommended that the duration be held to some minimum which can be recorded. The recommended time for the load d44123 is 0. Recommended frequencies are 0.

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If total cumulative vertical deformation greater than 0. A value of 0. The 4-min testing time limit is waived if loading is conducted within a temperature-control cabinet meeting the requirements in 5. Three laboratory fabricated specimens or three cores are recommended for a given test series with variables of temperature, load duration, and load frequency.

In order to reduce permanent damage to the specimen, testing astn begin at the lowest temperature, shortest load duration, and smallest load. Subsequent testing on 5 where: Pu1t 5 ultimate applied load required to fail specimen, lbf or Nt 5 thickness of specimen, in. Users of this standard are expressly advised asgm determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

This standard is subject to revision at any astk by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. Your comments will receive careful consideration at d41223 meeting of the responsible technical committee, which you may attend. Remember me Forgot password?

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