Title

Durability Performance of FRCM Composite Bonded to Concrete under Different Environmental Aging Conditions

Abstract

From the perspective that an aggressive environment may cause damage to cementitious materials, curing agents of fiber reinforced cementitious matrix (FRCM) composite allows chemical agents to attack the reinforcement fabrics. In such cases, the accelerated interfacial FRCM debonding mechanisms interfere which reduce its mechanical performance. This task was conducted to investigate the long-term durability performance of the FRCM composite. In this study, environmental aging conditions were the freeze-thaw cycles, high humidity cycles, high temperature cycles, immersion into salt solution, and immersion into alkaline solution. Different FRCM reinforcement ratio and two surface roughness of concrete were also included. Two test methods were used to evaluate the FRCM composite's bond performance (pull-off test and bending test). The bending test results revealed that the FRCM composite bond performance was not influenced by the environmental exposure. While the test results for the pull-off strength were scattered, possibly due to the environmental degradation or a lack of proper quality control during the initial FRCM composite application or applying the load.

Meeting Name

8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016 (2016: Dec. 14-16, Hong Kong)

Department(s)

Civil, Architectural and Environmental Engineering

Keywords and Phrases

Alkalinity; Bending tests; Bonding; Bridge decks; Chemical attack; Durability; Fiber reinforced plastics; Quality control; Reinforced concrete; Reinforced plastics; Reinforcement; Surface roughness; Aggressive environment; Cementitious materials; Composite applications; Durability performance; Environmental conditioning; Environmental exposure; Mechanical performance; Pull-off tests; Fiber reinforced materials; FRCM composite

International Standard Book Number (ISBN)

978-988144802-6

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2016 The Hong Kong Polytechnic University. Department of Civil and Environmental Engineering and Research Institute for Sustainable Urban Development, All rights reserved.

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