Evaluation of thermal damages of concrete subjected to high temperatures using recurrent neural networks for ultrasonic pulse waves

Candelaria, Ma. Doreen E.; Kee, Seong-Hoon

doi:10.1016/j.conbuildmat.2023.133416

Cited by 4 publications

(1 citation statement)

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“…Additionally, the ultrasonic wave velocity can be used to assess the damage and degradation of the concrete following heat treatment. The concrete's durability diminishes due to cracking, spalling, bursting and the gradual degradation of the hardened cement paste [57], which in turn affects the ultrasonic pulse rate [58,59]. Figure 6 depicts the variation in the ultrasonic wave velocity for the concrete with different LZT replacement ratios.…”

Section: Ultrasonic Pulse Velocitymentioning

confidence: 99%

Effect of High Temperatures on Mechanical and Shielding Properties of Lead–Zinc Tailings Concrete for Radiation Protection

Wang,

Chen,

Tao

et al. 2024

Buildings

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Due to the high prices, the popularity of radiation shielding concrete (RSC) has been greatly limited. To solve this, this research reused the lead–zinc tailings (LZT) as a fine aggregate replacement ranging from 0% to 60% for the RSC. The results revealed that the RSC containing 30% LZT presented better workability and achieved 95.84% of the compressive strength and 98.49% of the linear attenuation coefficient of the RSC, and reached the highest splitting tensile strength values, which increased by 4.43%. Meanwhile, after the heat treatments, there were favorable correlations between the relative velocity and relative strength, as well as between the damage index and the relative linear attenuation coefficient, which could accurately reflect the degradation of not only the mechanical but also the shielding properties. Considering the temperature and shielding thickness, the reuse of LZT can bring considerable economic and environmental benefits.

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Section: Ultrasonic Pulse Velocitymentioning

confidence: 99%