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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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.
A hot storage stability test was carried out for polymer modified binder. Other commercially available or laboratory constructed testing machines such as those using pneumatic repeated loading can also be used. Indirect tensile strength ITS test and durability performance of modified asphalts were evaluated using Marshall Test.
This recommended series will result in nine test values for one specimen which can be used to evaluate the overall resilient behavior of the mixture.
Subsequent testing on 5 where: Current edition approved April 30, NOTE 6—Loads as low as 10 lbf have been asgm.
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. NOTE 4—A dummy specimen with a thermocouple in the center can be used to determine when the desired test temperature is reached.
Moreover, the results explained that the compatibility between PMMA and asphalt binder is improved upon further aging especially with low molecular weight polymer PMMA. In order to reduce permanent damage to the specimen, testing should begin at the lowest temperature, shortest load duration, and smallest load.
Summary of Test Method 3. This standard does not purport to address all of the safety problems associated with its use. 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.
For specimens with rough textures, a thin hard rubber membrane attached ashm the loading strip has been found effective in reducing stress concentration effects, but should be used only when vertical deformations are not measured.
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.
The aging properties of polymer modified asphalts were examined using thin film oven test TFOT. This research studies the effect of adding poly methyl methacrylate PMMA with different molecular weights on asphalt properties.
Link to Active This link will always route to the current Active version of the standard.
The recommended time for the load duration is 0. This test method covers procedures for preparing and testing laboratory-fabricated or field-recovered cores of bituminous mixtures to determine resilient modulus values using the repeated-load indirect tension test.
The morphological studies of polymer modified binder were discussed. Stay on Page Continue to Compass. 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. The load strip shall be 0. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters.
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. The recommended test series consists of testing at 41, 77 Note 1and F 5, 25 Note 1and 40C at one or more loading frequencies, for example, at 0. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
NOTE 7—Load duration is the more important variable and it is recommended that astj duration be held to some minimum which can be recorded. The system should ast capable of measuring horizontal deformations in the range of 0.
The instantaneous resilient modulus is calculated using the recoverable deformation that occurs instantaneously during the unloading portion of one cycle.
Pu1t 5 ultimate applied load required to d41223 specimen, lbf or Nt 5 thickness of specimen, in. Bring the specimens to the specified temperature before each test. 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.
The load is applied vertically in the vertical diametral plane of a cylindrical specimen of asphalt concrete Fig. A value of 0. However, these latter machines may not have the load capability to handle larger specimens at the colder testing temperatures. If the transducers are temperature-sensitive, such as Statham UC-3, the testing machine should be placed in a controlled temperature chamber.
We share information about your activities on the site with our partners and Google partners: Your consent to our cookies if you continue to use this website. Tensile strength can be asgm from a destructive test on a specimen and the equation of 8.
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