Designation: D – 95 Designation: /84 (89) Standard Test Method for Kinematic Viscosity of Asphalts (Bitumens)1 This standard is issued under the. ASTM D Related Standards: ASTM C, D92, D, D, D, D, D, E1, E77; Related IP Standard: / ASTM D, EN , ASTM D, IP , EN , AASHTOT Rev 2. Content of Presentation. ✓ What is Bitumen. ✓ Viscosity of Bitumen.
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ASTM D2170/D2170M – 10
Combining values from the two systems may result in non-conformance with the standard. Certificates for viscometers should state the value of g at the location of the calibrating laboratory. This standard has been approved for use by agencies asym the Department of Defense. Last previous edition D — For the LantzZeitfuchs viscometer, apply slight vacuum to tube M or pressure to tube N with tube K closed until the lower meniscus is opposite the lower timing mark E; allow the sample to flow by gravity.
Scientific Research An Academic Publisher. Mercury, or its vapor, may be hazardous to health asgm corrosive to materials.
The flash point is determined in accordance with Test Method D Viscosity of a Liquid. For the Zeitfuchs Cross-Arm viscometer, apply slight vacuum to tube N or pressure to tube L to cause the meniscus to move over the siphon tube and about 30 mm below the level of tube D in capillary R; gravity flow is thus initiated.
ASTM D / DM – 10 Standard Test Method for Kinematic Viscosity of Asphalts (Bitumens)
Why should you use a Tamson Viscosity bath to measure the kinematic viscosity of asphalts bitumens? Details regarding calibration of viscometers are given in Annex A3. Wipe excess sample off tube N and invert the viscometer to its normal position. This coefficient is a measure of the resistance to flow of a liquid.
The upper meniscus shall coincide with mark G.
Draw liquid through tube N, filling bulb D to fill mark G. It may be necessary to repack the ice around the thermometer because of melting.
D viscometer calibration factor. In all cases, however, follow the general procedure described in 8.
Dry the viscometer by passing ast, slow stream of filtered, dry air through the viscometer for 2 min, or until the last trace of solvent is qstm. The efficiency of the stirring and the balance between heat losses and heat input must be such that the temperature of the bath medium does not vary by more than Introduce sample through tube N taking care not to wet the sides of tube N, into the cross-arm D until the leading edge stands within 0.
After allowing the sample to attain bath temperature see A2. Historical Version s aatm view previous versions of standard Work Item s – proposed revisions of this standard Translated Version s: Introduce sufficient sample through tube N to completely fill bulb D, overflowing slightly into overflow bulb Xstm. Historical Version s – view previous versions of standard. If the sample is poured at a temperature above test temperature, wait 15 min for the sample in the viscometer to attain bath temperature and add more sample to overflow slightly into bulb K.
See Annex A1 for the method of calculation.
ASTM D – 01a Standard Test Method for Kinematic Viscosity of Asphalts (Bitumens)
Fill the Dewar vessel with the crushed ice and add sufficient distilled and preferably precooled water to form a slush, but not enough to float the ice. Why is the kinematic viscosity of asphalts bitumens important to know? Discard any cloudy or unsound portions. If the expansion chamber is at elevated or lowered temperatures from ambient temperatures, a significant error can occur. Add to Cart Add to Cart. Purchase orders atsm be addressed to the Cannon Instrument Co.
If the reading is found to be higher or lower than the reading corresponding to a previous calibration, readings at all other temperatures will be correspondingly increased or decreased.
Summary of Test Method 4. Wstm and Use 5.
If the test temperature differs from the fill temperature, the viscometer constant is calculated as follows: The aging properties of polymer modified asphalts were examined using thin film oven test TFOT.
Additional operating instructions for the reverseflow viscometers are outlined in A2. Abd ElrhmanSanaa A.
If the thermometer is completely submerged in the bath during use, the pressure of the gas in the expansion chamber will be higher or lower than during standardization, and may cause high or low readings on the thermometer.