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Experimental Study on Interfacial Bonding Properties of Glass Textile Reinforced Concrete
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    Abstract:

    Pullout tests were conducted to investigate the influences of different embedded depths,temperatures and textile modification on the interfacial bonding properties between alkali-resistant(AR) glass textile and cementitious matrix by using a MTS load frame. The experimental data indicated that the bond properties between the glass textile and cement matrix were related to the embedded depth,textile modification and temperature. At the room temperature(25 ℃),the pullout stiffness,ultimate pullout force and pullout work increased,and the equivalent bond strength decreased with the increase of the embedded depth(15~25 mm). When the embedded depths were constant (15 mm),the pullout stiffness and ultimate pullout force of bundles decreased with the increase of the temperature. Impregnating epoxy resin and sticking sand on the surface of AR-glass textile can increase the ultimate pullout force,and sticking sand on the glass textile can increase the ultimate pullout force when the temperature varied from 25 ℃ to 300 ℃. However,impregnating epoxy resin and sticking sand on AR-glass textile do not significantly influence on the ultimate pullout force at the temperatures between 400 ℃ and 500 ℃,and can slightly reduce the ultimate pullout force.

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  • Received:
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  • Online: March 17,2020
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