ASTM D 5 - Either note the reading or zero the penetrometer...

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Penetration of Bituminous Materials ASTM D-5 Tim Boyer CM 442 Pre-Lab Purpose The purpose of this test is to provide a standardized method for determining the penetration of semi-solid and sold bituminous materials. Equipment Penetration Apparatus – indicates penetration to the nearest 0.1mm, total weight 50g Transfer Dish Water Bath Timing Device Thermometer Procedure Prepare the sample such that the depth of the sample is 120% of the expected penetration Place the sample under the penetrometer and bring penetrometer in contact with sample surface
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Unformatted text preview: Either note the reading or zero the penetrometer Quickly release the needle for the specified amount of time and record to the nearest 0.1mm Repeat for three results Post-Lab Test Conditions The test conditions for this procedure were normal. Results Old New 31 28 33 32 35 26 33 28.67 Comments The procedure was followed as written and everything proceeded normally....
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