Journal Published Online: 16 June 2023
Volume 51, Issue 6

The Size Distribution Measurement and Shape Quality Evaluation Method of Manufactured Aggregate Material Based on Deep Learning

CODEN: JTEVAB

Abstract

Manufactured aggregate is a substitute for natural aggregate particles that is formed by mechanically crushing parent rock. Its particle shape has a great impact on the working performance, mechanical performance, and durability for preparing high-performance concrete. Therefore, a particle shape quality evaluation method combining deep learning and distance transformation topology is proposed. In this method, the YOLO v4 network is used to locate the particle region, and the centroid point is recognized as the feature point of this region; then, the feature points are used for distance transformation topology to approximately divide the particles area. Based on the divided results, the pixel-level segmentation result is obtained using a local threshold algorithm. The 2–8-mm limestone manufactured aggregate in a 2 million ton (1,000 kg)/year manufactured aggregate production line is carried out to demonstrate the effectiveness of the proposed method, achieving above 90 % precision in the real manufactured aggregate quality evaluation.

Author Information

Zang, Bo
Hunan Provincial Key Laboratory of Structures for Wind Resistance and Vibration Control & School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, People’s Republic of China
Peng, Xiong
Hunan Provincial Key Laboratory of Structures for Wind Resistance and Vibration Control & School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, People’s Republic of China
Zhong, Xingu
Hunan Provincial Key Laboratory of Structures for Wind Resistance and Vibration Control & School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, People’s Republic of China
Zhao, Chao
Hunan Provincial Key Laboratory of Structures for Wind Resistance and Vibration Control & School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, People’s Republic of China
Zhou, Kun
Hunan Provincial Key Laboratory of Structures for Wind Resistance and Vibration Control & School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, People’s Republic of China
Pages: 17
Price: $25.00
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Stock #: JTE20220529
ISSN: 0090-3973
DOI: 10.1520/JTE20220529