Mechanical Properties and Crack Classification of Basalt Fiber RPC Based on Acoustic Emission Parameters
Source abstract
Abstract
The workability and mechanical properties of basalt fiber reactive powder concrete (BFRPC) were investigated by univariate analysis. The acoustic emission (AE) was used as a non-destructive technique to reveal the damage characterization of concrete samples of varying basalt fiber content. The fracture stages and modes of specimens during flexural test were determined by AE parameters. The content of silica fume, quartz sand and basalt fiber of 0.4, 1.3 and 10 kg/m3, respectively, was found related to optimal improvements in mechanical strength. As for the characteristics of fracture, it was found that the fiber content was a significant determinant, and the key AE parameters, namely, hits, energy and amplitude, were found related to the damage stage of specimens. Furthermore, rise time (RA) and average frequency (AF) were found to have opposite trends during loading while their variation related to the fracture modes of BFRPC.
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Research context
OpenAlex topics: Innovative concrete reinforcement materials · Rock Mechanics and Modeling · Concrete and Cement Materials Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Transportation, Jilin University, Changchun 130025, China
Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100022, China
Funding
Industrial Technology Research & Development Special Project of Jilin Province · Transportation Science and Technology Program of Jilin Province · Science Technology Development Program of Jilin Province · National Natural Science Foundation of China
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