Using the Hamburg Wheel Tracking Test to Characterize Asphalt Mixture Rutting and Moisture Damage Resistance in Cold Regions

Author(s): Hussain Bahia, Cheng Ling and Daniel Swiertz
Paper category: Proceedings
Book title: Proceedings of the 71st RILEM Annual Week & ICACMS 2017,Chennai,India, 3rd -8th September 2017
Editor(s): Manu Santhanam
Ravindra Gettu
Radhakrishna G. Pillai
Sunitha K. Nayar
ISBN: 978-2-35158-196-4
ISBN: 978-2-35158-190-2 (Set)
e-ISBN: 978-2-35158-191-9:
Publisher: Published by RILEM Publications S.A.R.L.
Publication year: 2017
Pages: 556-565
Total Pages: 10
Language : English

Abstract: The Hamburg wheel tracking test (HWTT) is a promising test used to measure the effects of
repeated loading and moisture-induced damage on asphalt mixtures at high temperatures. In
this study, the HWTT was used to test a large number of mixtures from the State of
Wisconsin. The mixtures vary in their composition, including three sources of aggregates,
asphalt binders with and without polymer modification, asphalt binders with different low
temperature PG grades, and different aggregate characteristics. Statistical analysis of results
from testing at 50 °C suggests that this test temperature may be too high for mixtures
commonly encountered in Wisconsin. Testing was repeated at 45 °C and 40 °C test
temperatures, with the most logical trends observed at the 45 °C test temperature. Therefore,
the HWTT at 45 °C is recommended in this study for use to evaluate rutting and moisture
damage in relatively cool weather regions. The indicators used include number of passes to
12.5 mm, initial creep rate, stripping inflection point and stripping rate.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00