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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This test is not appropriate for testing asphalt mixtures containing coal tar.
When recovering the asphalt binder for property testing, all mineral matter should be removed from the effluent. Originally approved in The extract may be transferred directly from the extraction cylinder to the centrifuge feed container Thank you for interesting in our services.
The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. It is difficult to remove all the asphalt when some aggregates are used and some chlorides may remain within the mineral matter affecting the measured asphalt content.
The extract may be transferred directly from the extractor to the centrifuge feed container Add approximately mL of methylene chloride and stir until the asphalt is visually in solution. The last approved version of this historical standard is referenced on www.
Reagents and Materials If two frames are used, distribute the test portion approximately equally between the two. XX Asphalt Centrifuge Extractor Explosion Proof Available in g aastm g capacities, these extractors conform to the explosion-proof standards for the safety of operating personnel. Specific hazards are given in Section 7. The material used in fabricating the condenser shall be essentially unreactive to water and to the solvent used and shall be provided with suitable water inlet and outlet.
Calculation of Bitumen Content Transfer the extraction to a mL graduate. Link to Active This link will always route to the current Active version d21772 the standard. The values given in parentheses are for information only.
Agitate the extract thoroughly and immediately measure approximately mL into the ignition dish.
ASTM-D – Free Download PDF
Specific hazards are given in Section 7. Optional small-mouth graduate, mL capacity. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Weight before and after extraction determines constituent proportions. Pour approximately mL of solvent 6.
Sco Scope pe 1. The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used.
D21772 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. Please fill this form, we will try to respond as soon as possible.
ASTM D Standard
We need your help! Apply heat from either a gas burner or an electric hot plate. Once this is accomplished the remaining aggregates are weighed and graded. 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.
Evaporate to dryness on a steam bath or hot plate, except use a steam bath when the solvent is benzene.
Record the mass, identifying each frame by number. Historical Version s – view previous versions of standard.
Determine the mass of an ignition dish. Fit the extractor lid tightly in place and allow water to circulate freely in the top. We are a non-profit group that run this website to share documents. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.