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Zhishen Wu - One of the best experts on this subject based on the ideXlab platform.

  • Mechanical Performance of the Wet-Bond Interface between FRP Plates and Cast-in-Place Concrete
    Journal of Composites for Construction, 2014
    Co-Authors: Pu Zhang, Gang Wu, Shaoping Meng, Zhishen Wu
    Abstract:

    AbstractThe mechanical performance of the bond between fiber-reinforced polymer (FRP) plates and cast-in-Place Concrete (referred to as the wet-bond interface) is investigated. The wet-bond interface is named with respect to the dry-bond interface. The dry-bond interface is a chemical bond that is developed to adhere FRP sheets or plates to cured Concrete, whereas the wet-bond interface is a chemical-bond interface that is developed to connect stay-in-Place FRP formwork and cast-in-Place Concrete. The double-lap shear test method is adopted to evaluate the effect of the bond. The mechanical properties of the wet-bond interface are compared with that of the conventional dry-bond interface using the same epoxy adhesive, including the load-slip curves, strain distributions, load capacity, and interfacial fracture energy. The results show that the failure modes of the wet-bond and dry-bond interfaces are different. In the dry-bond specimen, debonding occurs in the thin Concrete layer and is accompanied by an ...

  • Durability of Wet Bond of Hybrid Laminates to Cast-in-Place Concrete
    Journal of Composites for Construction, 2010
    Co-Authors: Li Li, Yixin Shao, Zhishen Wu
    Abstract:

    Wet bond is a chemical bond developed to connect fiber-reinforced polymer (FRP) stay-in-Place formwork to cast-in-Place Concrete for a composite action. Curing of chemical adhesive and fresh Concrete occurs simultaneously in wet bond. Since FRP-Concrete composite structure so designed is strongly dependent on the bond between FRP and Concrete, a durable bond is of paramount importance. This paper presents a study on durability performance of wet bond exposed to sustained low temperature, freeze-thaw cycles, and wet-dry cycles. Single lap pull-off tests were conducted to evaluate the effect of exposure on bond. It was found that both first crack load and ultimate load of wet bond were reduced in comparison to dry bond. This reduction was more severe in first crack load than in ultimate capacity and was associated with voids, thickness, and surface of adhesive layer. The epoxy in wet bond had reached comparable degree of cure to dry bond and even gained a higher Tg . Environmental exposures did not show mor...

Pu Zhang - One of the best experts on this subject based on the ideXlab platform.

  • Mechanical Performance of the Wet-Bond Interface between FRP Plates and Cast-in-Place Concrete
    Journal of Composites for Construction, 2014
    Co-Authors: Pu Zhang, Gang Wu, Shaoping Meng, Zhishen Wu
    Abstract:

    AbstractThe mechanical performance of the bond between fiber-reinforced polymer (FRP) plates and cast-in-Place Concrete (referred to as the wet-bond interface) is investigated. The wet-bond interface is named with respect to the dry-bond interface. The dry-bond interface is a chemical bond that is developed to adhere FRP sheets or plates to cured Concrete, whereas the wet-bond interface is a chemical-bond interface that is developed to connect stay-in-Place FRP formwork and cast-in-Place Concrete. The double-lap shear test method is adopted to evaluate the effect of the bond. The mechanical properties of the wet-bond interface are compared with that of the conventional dry-bond interface using the same epoxy adhesive, including the load-slip curves, strain distributions, load capacity, and interfacial fracture energy. The results show that the failure modes of the wet-bond and dry-bond interfaces are different. In the dry-bond specimen, debonding occurs in the thin Concrete layer and is accompanied by an ...

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

  • Durability of Wet Bond of Hybrid Laminates to Cast-in-Place Concrete
    Journal of Composites for Construction, 2010
    Co-Authors: Li Li, Yixin Shao, Zhishen Wu
    Abstract:

    Wet bond is a chemical bond developed to connect fiber-reinforced polymer (FRP) stay-in-Place formwork to cast-in-Place Concrete for a composite action. Curing of chemical adhesive and fresh Concrete occurs simultaneously in wet bond. Since FRP-Concrete composite structure so designed is strongly dependent on the bond between FRP and Concrete, a durable bond is of paramount importance. This paper presents a study on durability performance of wet bond exposed to sustained low temperature, freeze-thaw cycles, and wet-dry cycles. Single lap pull-off tests were conducted to evaluate the effect of exposure on bond. It was found that both first crack load and ultimate load of wet bond were reduced in comparison to dry bond. This reduction was more severe in first crack load than in ultimate capacity and was associated with voids, thickness, and surface of adhesive layer. The epoxy in wet bond had reached comparable degree of cure to dry bond and even gained a higher Tg . Environmental exposures did not show mor...

Shaoping Meng - One of the best experts on this subject based on the ideXlab platform.

  • Mechanical Performance of the Wet-Bond Interface between FRP Plates and Cast-in-Place Concrete
    Journal of Composites for Construction, 2014
    Co-Authors: Pu Zhang, Gang Wu, Shaoping Meng, Zhishen Wu
    Abstract:

    AbstractThe mechanical performance of the bond between fiber-reinforced polymer (FRP) plates and cast-in-Place Concrete (referred to as the wet-bond interface) is investigated. The wet-bond interface is named with respect to the dry-bond interface. The dry-bond interface is a chemical bond that is developed to adhere FRP sheets or plates to cured Concrete, whereas the wet-bond interface is a chemical-bond interface that is developed to connect stay-in-Place FRP formwork and cast-in-Place Concrete. The double-lap shear test method is adopted to evaluate the effect of the bond. The mechanical properties of the wet-bond interface are compared with that of the conventional dry-bond interface using the same epoxy adhesive, including the load-slip curves, strain distributions, load capacity, and interfacial fracture energy. The results show that the failure modes of the wet-bond and dry-bond interfaces are different. In the dry-bond specimen, debonding occurs in the thin Concrete layer and is accompanied by an ...

Gang Wu - One of the best experts on this subject based on the ideXlab platform.

  • Mechanical Performance of the Wet-Bond Interface between FRP Plates and Cast-in-Place Concrete
    Journal of Composites for Construction, 2014
    Co-Authors: Pu Zhang, Gang Wu, Shaoping Meng, Zhishen Wu
    Abstract:

    AbstractThe mechanical performance of the bond between fiber-reinforced polymer (FRP) plates and cast-in-Place Concrete (referred to as the wet-bond interface) is investigated. The wet-bond interface is named with respect to the dry-bond interface. The dry-bond interface is a chemical bond that is developed to adhere FRP sheets or plates to cured Concrete, whereas the wet-bond interface is a chemical-bond interface that is developed to connect stay-in-Place FRP formwork and cast-in-Place Concrete. The double-lap shear test method is adopted to evaluate the effect of the bond. The mechanical properties of the wet-bond interface are compared with that of the conventional dry-bond interface using the same epoxy adhesive, including the load-slip curves, strain distributions, load capacity, and interfacial fracture energy. The results show that the failure modes of the wet-bond and dry-bond interfaces are different. In the dry-bond specimen, debonding occurs in the thin Concrete layer and is accompanied by an ...