journal article·2023-05-07Open access

A Method for Detecting Pathologies in Concrete Structures Using Deep Neural Networks

Joel Nogueira Diniz, Anselmo Paiva, Geraldo Junior, João de Almeida, Aristofanes Silva, António Cunha, Sandra Cunha

Applied Sciences· Volume 13· Issue 9

Abstract

Pathologies in concrete structures, such as cracks, splintering, efflorescence, corrosion spots, and exposed steel bars, can be visually evidenced on the concrete surface. This paper proposes a method for automatically detecting these pathologies from images of the concrete structure. The proposed method uses deep neural networks to detect pathologies in these images. This method results in time savings and error reduction. The paper presents results in detecting the pathologies from wide-angle images containing the overall structure and also for the specific pathology identification task for cropped images of the region of the pathology. Identifying pathologies in cropped images, the classification task could be performed with 99.4% accuracy using cross-validation and classifying cracks. Wide images containing no, one, or several pathologies in the same image, the case of pathology detection, could be analyzed with the YOLO network to identify five pathology classes. The results for detection with YOLO were measured with mAP, mean Average Precision, for five classes of concrete pathology, reaching 11.80% for fissure, 19.22% for fragmentation, 5.62% for efflorescence, 27.24% for exposed bar, and 24.44% for corrosion. Pathology identification in concrete photos can be optimized using deep learning.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Infrastructure Maintenance and Monitoring · Concrete Corrosion and Durability · Geophysical Methods and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

UFMA/Computer Science Department, Universidade Federal do Maranhão, Campus do Bacanga, São Luís 65085-580, Brazil

UTAD/Engineering Department, Universidade de Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal

INESC-TEC—Institute for Systems and Computer Engineering, Technology and Science, 4200-465 Porto, Portugal

CMADE—Centre of Materials and Building Technologies, UTAD, 5000-801 Vila Real, Portugal

Funding

FCT (Portuguese Foundation for Science and Technology)

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