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AASHTO T 366
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AASHTO T 366 2017 Edition, January 1, 2017 Standard Method of Test for Apparent Viscosity of Hot-Poured Asphalt Crack Sealant Using Rotational Viscometer
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Description / Abstract:
This test method outlines the procedure for measuring the apparent viscosity of hot-poured asphalt crack sealant at elevated temperature from 150° to 200°C using a rotational viscometer as specified by MP 25 and PP 85.
The rotational viscometer is a rotating spindle-type viscometer that meets the requirements of T 316. This test method can be used for general specification and is especially convenient for use in a field laboratory or a plant site.
Viscosity data obtained with this test method are used to ensure that the hot-poured asphalt crack sealant’s apparent viscosity is low enough to fill cracks and, at the same time, high enough not to flow out of the crack. Ideally, the shear rates during the test should match the shear rates the hotpoured asphalt crack sealant experiences during installation. The rotational speed of the spindle was selected at 60 rpm to resemble field pouring conditions. Changing spindle sizes and rotational speeds affect both the shear rate and the measured apparent viscosity.
This standard may involve hazardous material, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the application of regulatory limitations prior to use.
The rotational viscometer is a rotating spindle-type viscometer that meets the requirements of T 316. This test method can be used for general specification and is especially convenient for use in a field laboratory or a plant site.
Viscosity data obtained with this test method are used to ensure that the hot-poured asphalt crack sealant’s apparent viscosity is low enough to fill cracks and, at the same time, high enough not to flow out of the crack. Ideally, the shear rates during the test should match the shear rates the hotpoured asphalt crack sealant experiences during installation. The rotational speed of the spindle was selected at 60 rpm to resemble field pouring conditions. Changing spindle sizes and rotational speeds affect both the shear rate and the measured apparent viscosity.
This standard may involve hazardous material, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the application of regulatory limitations prior to use.