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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This test method is not intended for use in specifications. A value of 0.
A number in parentheses indicates the year of last reapproval. The specimens should have a height of at least 2 in. 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.
ASTM D astmimportantespara la destilacion a presiones inferiores de 1 atm, archivo actualizadoen la ultima version. Your consent to our cookies if you continue to use this website. 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. NOTE 5—As few as five repetitions have been found to be sufficient for loads such as 5 to 25 lbf.
ASTM D, Test equipment Controls
A charge of the erythrocyte test by automated method. 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, in the case of revision, the year of last revision.
The sensitivity and type of measurement device should be selected to provide the deformation readout required in 5. This astj series will result in nine test values for one specimen which can be used to evaluate the overall resilient behavior of the mixture. The load is applied vertically in the vertical zstm plane of a cylindrical specimen of asphalt concrete Fig.
A hot storage stability test was carried out for polymer modified binder. Asfm tensile strength ITS test and durability performance of modified asphalts were evaluated using Marshall Test. The morphological studies of polymer modified binder were discussed.
Pu1t 5 ultimate applied load required to fail specimen, lbf or Nt 5 thickness of specimen, in. Three laboratory fabricated specimens or three cores are recommended for a given test series with variables of temperature, load duration, and load frequency.
We share information about your activities on the site with our partners and Google partners: 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. Formerly under the jurisdiction of Committee D04 on Road and Paving Materials, this test method was withdrawn in December in accordance with section D41123 gages should 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.
The 4-min testing time limit is waived if loading is conducted within a temperature-control cabinet meeting the requirements in 5.
Remember me Forgot password? However, these latter machines may not have the load capability to handle larger specimens at the colder testing temperatures. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. Increasing traffic loading and volumes on roads have led to the use of polymer modified binders to improve the performance of bitumen in terms of strength, durability, and resistance to rutting.
Unless the temperature is monitored, and the actual temperature 5.
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Specimens will normally be either a nominal 4 or 6 in. The achieved improvement was found to be dependent on polymer molecular weight.
Subsequent testing on 5 where: This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. Since the procedure is nondestructive, tests can be repeated on a specimen to evaluate conditioning as with temperature or moisture.
NOTE 2—An electrohydraulic testing machine with a function generator capable of producing the desired wave form has been shown to be suitable for use in repeated-load indirect tension 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 system should include a temperature-controlled cabinet large enough to hold at least three specimens for a period of 24 h prior to testing.
This recommended series will result in nine test values for one specimen which can be used to c4123 the overall resilient behavior of the mixture. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. In order to reduce permanent damage to the specimen, testing should begin at the lowest temperature, shortest load duration, and smallest load.
Edges should be rounded by grinding to remove the sharp edge in order not to cut the sample during testing.