AASHTO Publications AASHTO Designation: T 308 (2 PDHs) TC3MS020-15-T1

This course offers professional development hours (PDHs). You will see the PDHs on your course completion certificate, which also serves as documentation of your attendance. PDH requirements vary, therefore, it is up to you to determine whether or not this particular course qualifies under your State or board requirements. Course overview: The AASHTO Designation: T 308 course explains the importance of asphalt content. It also describes the equipment needed to perform the test procedure, shows how to perform the ignition furnace test procedure (both Method A - internal balance and Method B - external balance), and instructs how to calculate and apply the correction factors. Some of the topics covered in this training include: • Background and purpose of asphalt content; • Apparatus; • The determination of correction factors; and • Test procedure, calculations, and wrap-up of the test procedure (including reporting). Training level: This training is recommended for the Transportation Curriculum Coordination Council levels I, II, III, and IV. Target audience: This training is designed for plant technicians, private lab, or contractor employees who are qualified to sample hot mix, aggregate or asphalt cement, and perform acceptance tests including Asphalt Content by Ignition Oven (AASHTO T 308-10). It is also useful for laboratory and personnel assessment technicians. Learning outcomes: Upon completion of the course, participants will be able to: • Explain the impact that asphalt binder content can have on a pavement; • Define the purpose of the ignition method, as well as the benefits and limitations of the test procedure; • Understand the basic concepts behind the test procedure; • Identify the equipment needed to perform the test procedure for both Method A and Method B; • Understand why correction factors must be determined; • Explain how to determine the asphalt binder correction factor; • Explain how to determine the aggregate correction factor; • Describe how the ignition test is performed for either Method A or Method B; • Calculate the measured (corrected) asphalt binder content percent for both Method A and Method B; • Report the test results; and • Prepare a sample for a gradation analysis according to AASHTO T 30.