AASHTO R 118-2023
Характеристика релаксационного поведения асфальтовых вяжущих с использованием параметра DeltaTc ( ΔTc)
- Стандартный №
- AASHTO R 118-2023
- Дата публикации
- 2023
- Разместил
- The American Road & Transportation Builders Association
- Последняя версия
- AASHTO R 118-2023
- Введение
-
Standard Practice for Characterizing the Relaxation Behavior of Asphalt Binders Using the Delta Tc (ΔTc) Parameter
AASHTO Designation: R 118-231
1. НАПРАВЛЕНИЕ. 1.1. Present practice provides a way to assess the behavior of an asphalt binder at low temperatures using the results (rigidity and m-value) from the Bending Beam Rheometer (BBR) test to calculate a value (identified as Delta Tc or ΔTc), which reflects the relaxation properties of the asphalt binder. This practice is primarily intended for use with residue obtained after long-term conditioning with T 240 (Rolling Thin-Film Oven (RTFO)) and R 28 (Pressurized Aging Vessel (PAV)), but can also be used on recovered asphalt binder from asphalt mixture, reclaimed asphalt pavement (RAP), and reclaimed asphalt shingles (RAS). 1.2. The behavior of an asphalt binder at low temperatures provides insights for the specialist about the extent to which the沥青胶具有足够的松弛特性，以最小化其对非载荷相关开裂的影响。1.3. This practice can be used together with M 320, Performance-Graded Asphalt Binder, or M 332, Performance-Graded Asphalt Binder Using the Multiple Stress Creep Recovery (MSCR) Test. 1.4. The values given in SI units are considered standard. 1.5. This standard does not claim to address all safety concerns associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and determine the applicability of regulatory restrictions before using this standard.
AASHTO R 118-2023 История
- 2023 AASHTO R 118-2023 Характеристика релаксационного поведения асфальтовых вяжущих с использованием параметра DeltaTc ( ΔTc)
