Work Item
ASTM WK74054

New Test Method for Evaluation of Fatigue Performance of Asphalt Mixtures Using the Three-Point Bending Cylinder (3PBC) Test

1. Scope

The scope of the Committee shall be the promotion of knowledge, stimulation of research, and the development of standards pertaining to asphalt materials used in pavements, asphalt surface treatments, aggregates used in asphalt mixtures, graded aggregate used in bases or subbases, and to other materials, products, systems, and services incidental to all types of highway and transportation construction and maintenance. The types of standards developed include, but are not limited to, specifications, test methods, practices, guides, and terminology.

The work of this Committee will be coordinated with other ASTM committees and other organizations having mutual interest.
The activities shall be coordinated with other ASTM Committees when necessary.
The area of interest of the Committee is materials used in the construction and maintenance of highways, and other transportation construction.

Keywords

asphalt concrete fatigue; asphalt concrete dynamic modulus; asphalt concrete tensile testing; fatigue life; flexural bending; shear bending; Timoshenko beam theory

Rationale

Fatigue cracking is one of the critical distress modes in asphalt pavements. Accurate prediction and evaluation of fatigue performance are crucial to extending the service life of asphalt mixtures. Naturally, laboratory testing methods for fatigue characterization are time-consuming and require sophisticated procedures. Any effort to improve the speed and quality of the information gained from laboratory fatigue tests is valuable. This test method introduces a cyclic test run on cylindrical asphalt specimens in three-point beam mode, herein referred to as the three-point bending cylinder (3PBC) test. The 3PBC setup possesses the most advantages of available tests and includes more advantages such as not requiring a saw to cut the ends of the sample and not requiring gluing operation (and the gluing jig), drilling, or notching. This level of practicality and ease of testing implementation is also important for use in performance-based mix design and construction acceptance.

The title and scope are in draft form and are under development within this ASTM Committee.

Details

Developed by Subcommittee: D04.26

Committee: D04

Staff Manager: Ashley Wiand

Work Item Status

Date Initiated: 09-05-2020

Technical Contact: Muhammed Kutay

Item: 001

Ballot: D04.26 (21-01)

Status: Will Reballot Item

Item: 005

Ballot: D04 (22-01)

Status: Negative Votes Need Resolution