ASTM D 2171

ASTM D 2171 - viscometer After the viscometer has been in...

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Viscosity of Asphalts by Vacuum Capillary Viscometer ASTM D-2171 Tim Boyer CM 442 Pre-Lab Purpose The purpose of this test is to provide a standardized method for determining the viscosity of asphalt by vacuum capillary viscometers Equipment Thermometers Bath Vacuum System Timer Electrical Timing Devices Procedure Heat the sample until it has become sufficiently fluid to pour Charge the viscometer by filling with the sample to line E Place viscometer in oven or bath at 275F for 10 min to allow air bubbles to escape Establish a vacuum of 40kPa below atmospheric pressure and connect the vacuum system to the
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Unformatted text preview: viscometer After the viscometer has been in the bath for 30 min, open the toggle valve to the vacuum system to start the flow of asphalt Measure to within 0.1s the time required for the meniscus to pass successive pairs of timing marks Clean the viscometer appropriatly Post-Lab Test Conditions The test conditions for this procedure were normal. Results Section Constant time Viscosit y B 31.67 35 1108.5 Pa-s C 15.65 72.45 1133.8 Pa-s Comments The procedure was followed as written and everything proceeded normally....
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This note was uploaded on 04/29/2008 for the course CE 320 taught by Professor Mckinney during the Spring '08 term at Rose-Hulman.

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ASTM D 2171 - viscometer After the viscometer has been in...

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