Name:
AASHTO T 371-17 (2021) PDF
Published Date:
2017
Status:
Active
Publisher:
American Association of State Highway and Transportation Officials
The blister test is used to determine the interfacial fracture energy (IFE) of hot-poured asphalt crack sealant at the application temperature as specified in AASHTO M 338 and PP 85.
The blister test is a fracture test. The objective of the test is to apply tensile forces using hydrostatic pressure to delaminate sealant from a substrate. A thin film of sealant is poured on the top of a substrate (usually aluminum) disk that has a hole at the center. Hydrostatic pressure is applied through this hole at a constant flow rate causing delamination between the sealant film and substrate. Sealant deformation and applied hydrostatic pressure are recorded as a function of time. The amount of energy required to achieve complete delamination is called interfacial fracture energy and can be calculated from the pressure-deformation curve. This energy is considered a measure of bonding potential.
This standard was formerly designated as provisional standard TP 90.
| File Size : | 1 file , 12 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 15 |
| Product Code(s) : | T371-17-UL, T371-17-UL, T371-17-UL |
| Published : | 2017 |
