Nondestructive evaluation of surface texture conditions in dense-graded asphalt concrete

Ming-Tse Hung; Yu-Min Su

doi:10.1117/12.2661337

18 April 2023 Nondestructive evaluation of surface texture conditions in dense-graded asphalt concrete

Ming-Tse Hung, Yu-Min Su

Proceedings Volume 12487, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XVII; 124870U (2023) https://doi.org/10.1117/12.2661337
Event: SPIE Smart Structures + Nondestructive Evaluation, 2023, Long Beach, California, United States

Abstract

The research objective is to evaluate the texture conditions in dense-graded asphalt concrete. The research scope is to collect various plant-mixed DGAC mixtures, compact mixtures to slabs, polish the slabs, and evaluate the texture. The testing slabs were polished step-wisely by the wheel-tracking polishing device. WTPD runs in a circle of 284mm in diameter and wears off the surface textures through a standard of procedures, namely 0, 3,000, 6,000, 12,000, 25,000, 50,000、100,000 rounds of polishing efforts. The circular track meter or CTM in lieu of ASTM E2157 was employed to assess the surface texture, non-destructively. The measurement of macro- and micro-texture of the slab surface is the mean profile depth or MPD and as such is a highly accurate yet repeatable texture data, due to the one-micron resolution laser source equipped with CTM. In this study, four DGAC mixtures collected from different regions were examined. MPD data decrease in the first thousands of polishing rounds, due to possible local compaction induced by the repeated wheel loading. MPD data thereafter increase to a maximum between 12,000 to 50,000 polishing rounds and start to decrease. It is possible that the asphalt mixtures were worn off and the texture of aggregates activate to involve in the overall texture condition. More polishing rounds and more repetition tests are recommended to gather more information to be analyzed in the future.

Conference Presentation

Citation Download Citation

Ming-Tse Hung and Yu-Min Su "Nondestructive evaluation of surface texture conditions in dense-graded asphalt concrete", Proc. SPIE 12487, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XVII, 124870U (18 April 2023); https://doi.org/10.1117/12.2661337

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available