Journal Published Online: 17 January 2023
Volume 51, Issue 5

Assessing the Ability to Combine Hyperspectral Imaging with TESCAN Integrated Mineral Analyzer to Quickly Classify Pavement Aggregate Minerals

CODEN: JTEVAB

Abstract

Asphalt-aggregate interfacial adhesion performance plays an important role in the durability and stability of asphalt mixtures. The determination of the adhesion between the surface minerals of aggregate and the asphalt binder, to quickly and quantitatively evaluate the interface performance between the aggregate and the asphalt binder, has attracted extensive attention. In this article, hyperspectral imaging technology combined with a TESCAN integrated mineral analyzer (TIMA) was proposed to determine the surface mineral compositions of pavement aggregate, and the mineral classification quality and performance of the proposed method were assessed. The test results showed that the endmember spectra of the different minerals could be established based on the TIMA results. The mapping results obtained by the US Geological Survey library were far inferior to those obtained using the proposed method, and the mineral distribution texture of the granite and diabase obtained by the proposed method were in good agreement with those of digital images. The proportion of unclassified minerals of granite was only 3–8 % of the total content, which is an acceptable range for engineering applications, and the three main minerals in diabase could also be effectively identified. The proposed method can be a quick and accurate way to obtain the types and contents of minerals on an aggregate surface from the mineral hyperspectral spectra of aggregates from the same mine or area.

Author Information

Huang, Wenke
School of Civil Engineering, Guangzhou University, Guangzhou Higher Education Mega Center, Guangzhou, China
Deng, Weilin
School of Civil Engineering, Guangzhou University, Guangzhou Higher Education Mega Center, Guangzhou, China
Hu, Bei
School of Civil Engineering, Guangzhou University, Guangzhou Higher Education Mega Center, Guangzhou, China
Huang, Chongqiu
School of Civil Engineering, Guangzhou University, Guangzhou Higher Education Mega Center, Guangzhou, China
Zeng, Xingbin
School of Civil Engineering, Guangzhou University, Guangzhou Higher Education Mega Center, Guangzhou, China
Pages: 16
Price: $25.00
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Details
Stock #: JTE20220478
ISSN: 0090-3973
DOI: 10.1520/JTE20220478