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- W4311779839 abstract "This study proposed an approach to monitor the cracks growth process of reinforced concrete beam using embedded piezoelectric aggregates. The principle of stress waves propagation in concrete cracks was analyzed, and a damage index was introduced to estimate the crack damage degree in concrete structure on this basis. A stepwise loading was applied to the reinforced concrete beam, and it was divided into three areas according to the different force conditions. Moreover, the piezoelectric aggregates were fabricated, and four aggregates were embedded into the specimen to monitor its each area by active monitoring technique. The results of the experiment demonstrated that the proposed damage index could realize the dynamic monitoring and damage degree evaluation of the specimen. Furthermore, this index could forecast the occurrence of surface crack and warn the collapse of the structure in advance. The proposed method was also verified by high-speed camera and image processing technique." @default.
- W4311779839 created "2022-12-28" @default.
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- W4311779839 date "2023-01-01" @default.
- W4311779839 modified "2023-10-18" @default.
- W4311779839 title "Embedded PZT aggregates for monitoring crack growth and predicting surface crack in reinforced concrete beam" @default.
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- W4311779839 doi "https://doi.org/10.1016/j.conbuildmat.2022.129979" @default.
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