Mixtures – ASTM D/DM APPARATUS. 1. Ovens / Clause Maintains the temperature at ± °C ( ± °F) ____. 2. Balance. STANDARD. • IRC: SP 11 – (Appendix – 5), ASTM D OBJECTIVE. • To determine the binder content in the asphalt mix by cold solvent extraction. Centrifuge Extractors are used to determine bitumen content in paving mixtures. They comply with ASTM D (Method A) and AASHTO T
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Sco Scope pe 1.
Preparation of Test Portions Link to Active This link will always route to the current Active version of the standard. Thank you for interesting in our services.
Last previous edition approved in as D — The material used in fabricating the condenser shall be essentially unreactive to water and to the solvent used and shall be d172 with suitable water inlet and outlet.
Active view current version of standard. This standard has been approved for use by agencies of the Department of Defense. Pour the solvent into the glass cylinder and place the bottom frame into it. When sufficiently cool, pour mL of denatured alcohol over the specimen.
It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Current Curre nt editi edition on appro approved ved Feb. XX Centrifuge Extractor, Filterless Use in the extraction of mineral fines from bitumen-laden solvents obtained from standard asphalt extraction tests.
The metal used in fabricating the frames shall be essentially inactive to the solvents used in the test method. Th Thee bi bitu tume men n co cont nten entt is ex expr press essed ed as ma mass ss percentt of moistu percen moisture-fr re-free ee mixtur mixtures.
Specific hazards are given in Section 7. Reliable results depend on many factors; following the suggestions of Specification D or some similar acceptable guideline provides a means of evaluating sstm controlling some of those factors. Permission rights to photocopy the standard may also be secured from the ASTM website www. Split or quarter the material until the mass of material required for test is obtained.
Centrifuge Extractors, ASTM D
We need your help to maintenance this website. XX Asphalt Centrifuge Extractor Explosion Zstm Available aetm g and g capacities, these extractors conform to the explosion-proof standards for the safety of operating personnel. The diameter of the paper shall be such that when folded in accordance with the directions given below, it shall completely line the metal cones in the frames. Best quantitative results are obtained when the test is made on mixtures and pavements shortly after their preparation.
Combining values from the two systems may result in nonconformance with the standard. Determine the mass of an ignition dish. After the last wash, gently pour the entire sample into the extractor and thoroughly rinse all aggregate particles from the sample container. If trichloroethylene or normal Propyl Bromide is used as the extraction solvent, the preliminary drying on a steam bath may be omitted. Take this test specimen from the remaining sample of the mixture immediately after obtaining the extraction test specimen.
Preparation of Test Portion It is difficult to remove all the asphalt when some aggregates are used and somee chl som chlori orides des may rem remain ain wit within hin the min minera erall mat matter ter af affec fectin ting g the measured asphalt content. Therefore the precision statement for each test method includes data obtained using any of the following solvents: A number in parentheses indicates the year of last reapproval.
The results obtained by these test methods may be affected by the age of the material tested, with older samples tending to yield slightly lower asphalt binder content. Position a container at the appropriate spout to catch the effluent from the centrifuging operation. Place the bowl containing the test portion and the solvent in the extraction apparatus.
Combining values from the two systems may result in non-conformance with the standard. Add approximately mL of methylene chloride and stir until the asphalt is visually in solution.
Ea Each ch me meth thod od pr pres escr crib ibes es th thee solvent or solvents and any other reagents that can be used in 1 These test methods are under the jurisdiction of ASTM Committee D04 on Road and Pavin Paving g Mater Materials ials and are the direct responsibilit responsibilities ies of Subco Subcommitte mmitteee D Note 1—The results obtained by these test methods may be affected by the age of the material tested, with older samples tending to yield slightly lower bitumen content.
Remove the ring and brush the clinging aggregate into the drying pan.