AASHTO T 382-20 PDF Download

The AASHTO T 382-20 standard is a method of testing to determine the viscosity of emulsified asphalt using a rotational paddle viscometer. This test method is applicable to various types of emulsified asphalts described in specifications M 140, M 208, and M 316. The temperature range for this test is between 25°C and less than 90°C (77°F and less than 194°F).

The purpose of this standard is to provide a consistent and reliable method for measuring the viscosity of emulsified asphalt, which is important for understanding its flow and performance characteristics. By determining the viscosity, engineers and researchers can assess the handling and application properties of emulsified asphalt, ensuring it meets the desired specifications and quality standards for construction and maintenance projects.

Using a rotational paddle viscometer allows for precise and reproducible measurements of the viscosity of emulsified asphalt. The test procedure involves rotating a paddle immersed in the sample at a constant speed and measuring the resistance to rotation, which is directly related to the viscosity. This test method provides a quantitative measure of the fluidity of emulsified asphalt, which is crucial for determining its suitability for various applications in the transportation industry.