The Experts below are selected from a list of 6633 Experts worldwide ranked by ideXlab platform

Guangling Song - One of the best experts on this subject based on the ideXlab platform.

  • improvement of intelligent corrosivity detection and corrosion protection for reinforcing steel
    Corrosion Science, 2021
    Co-Authors: Guangling Song, Yixing Zhu, Lei Yan, Zhenliang Feng, Dajiang Zheng
    Abstract:

    Abstract A series of Mg-Al alloys were fabricated by means of magnetron-sputtering, aiming to improve the intelligence of Mg as a Smart Concrete corrosivity-detector and corrosion-protector. The effect of Al alloying on Mg dissolution in a simulated Concrete pore solution (SCPS) without and with Cl− contamination was systematically investigated. The results showed that proper Al alloying could significantly enhance the intelligence of Mg in corrosivity-detection and corrosion-protection by reducing the self-dissolution, avoiding the over-protection, sensitively probing increased corrosivity, and effectively protect the steel activated by chlorides.

Dajiang Zheng - One of the best experts on this subject based on the ideXlab platform.

  • improvement of intelligent corrosivity detection and corrosion protection for reinforcing steel
    Corrosion Science, 2021
    Co-Authors: Guangling Song, Yixing Zhu, Lei Yan, Zhenliang Feng, Dajiang Zheng
    Abstract:

    Abstract A series of Mg-Al alloys were fabricated by means of magnetron-sputtering, aiming to improve the intelligence of Mg as a Smart Concrete corrosivity-detector and corrosion-protector. The effect of Al alloying on Mg dissolution in a simulated Concrete pore solution (SCPS) without and with Cl− contamination was systematically investigated. The results showed that proper Al alloying could significantly enhance the intelligence of Mg in corrosivity-detection and corrosion-protection by reducing the self-dissolution, avoiding the over-protection, sensitively probing increased corrosivity, and effectively protect the steel activated by chlorides.

Zhichen Wang - One of the best experts on this subject based on the ideXlab platform.

  • performance improvement of a fiber reinforced polymer bar for a reinforced sea sand and seawater Concrete beam in the serviceability limit state
    Sensors, 2019
    Co-Authors: Jiafei Jiang, Jie Luo, Zhichen Wang
    Abstract:

    Fiber-reinforced polymer (FRP) has supreme resistance to corrosion and can be designed with optic fibers. FRP can be an alternative to steel reinforcement for Concrete structures, and can serve as a sensor for Smart Concrete structures. Due to poor cracking control and bond performance, the limit of flexural capacity in the serviceability limit state has not been determined, which has obstructed the wider application of FRP bars in Smart structures. In this study, in order to overcome these shortcomings, a new engineering cementitious composite (ECC) with superior tensile strain capacity was used to replace the cover around the FRP bars in the tensile zone. To investigate the anti-cracking performance of the new composite beam, seven simply supported beams were designed. In the preliminary investigation, the longitudinal FRP bars in these beams were designed without optic fibers to focus on the mechanical behavior. The beams were tested under four-point load and measured using the digital sensor technique, digital image correlation (DIC). The test results showed that introducing a new ECC layer on the tensile side improves the cracking control and flexural behavior (load capacity and deformability) of a FRP-reinforced sea sand and seawater Concrete (SSC) beam, especially in the serviceability limit state. We demonstrate the new composite beam can steadily and fully improve the tensile capacity of FRP bars, which is the basis of using FRP bars as sensors.

D.d.l. Chung - One of the best experts on this subject based on the ideXlab platform.

  • carbon fiber reinforced Concrete as an intrinsically Smart Concrete for damage assessment during dynamic loading
    Journal of the American Ceramic Society, 1995
    Co-Authors: Puwoei Chen, D.d.l. Chung
    Abstract:

    Concrete containing short carbon fibers (0.2–0.5 vol%) wasfound to be an intrinsically Smart Concrete that can sense elastic and inelastic deformation, as well as fracture. The signal provided is the change in electrical resistance, which is reversible for elastic deformation and irreversible for inelastic deformation and fracture. The presence of electrically conducting short fibers is necessary for the Concrete to sense elastic or inelastic deformation, but the sensing of fracture does not require fibers. The fibers serve to bridge the cracks and provide a conduction path. The resistance increase is due to conducting fiber pullout in the elastic regime, conducting fiber breakage in the inelastic regime, and crack propagation at fracture.

Osman E Ozbulut - One of the best experts on this subject based on the ideXlab platform.