Low temperature fracture test for asphalt mixtures

Title: Low temperature fracture test for asphalt mixtures
Author(s): M. O. Marasteanu, X. Li, J. F. Labuz
Paper category : conference
Book title: Fifth International RILEM Conference on Reflective Cracking in Pavements
Editor(s): C. Petit, I.L. Al-Qadi and A. Millien
Print-ISBN: 2-912143-47-0
e-ISBN: 2912143764
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 249 - 256
Total Pages: 8
Nb references: 12
Language: English

Abstract: Low temperature cracking is the main distress in asphalt pavements built in the northern US and Canada. Currently, there is no standard method to characterize the resistance to cracking of asphalt mixtures. This paper investigates the use of a Semi-Circular Bend test as a potential candidate for a standard low-temperature cracking specification. A specimen preparation protocol, a test procedure and a method to calculate fracture toughness and fracture energy are proposed. Three similar Superpave mixtures with different binders (PG 58-40, PG58-34, and PG58-28) used in the MnRoad pavement facility were tested at -30ºC and fracture properties were obtained. A factorial analysis was performed on the experimental data to determine if these mixtures were statistically different; based on fracture energy, the binder type effect was significant.

Online publication: 2004-04-15
Publication type : full_text
Public price (Euros): 0.00