Abstract
High-performance cementitious composites, such as engineered cementitious composites (ECCs) with strong tensile strain-hardening behavior or ultra-high performance fiber-reinforced cementitious composites (UHPFRCCs) with excellent compressive behavior, have been widely used in civil engineering. In cases that UHPFRCC strengthening layer without internal reinforcement has an inferior average ultimate tensile stress to UHPFRCC strengthening layer with internal reinforcement, fiber-reinforced polymer (FRP) bar/grid can be adopted as internal tension reinforcement. This paper presents a state-of-the-art comprehensive review on the characteristics and application of high-performance cementitious composites with and without FRP grid reinforcement. This review discusses the feasibility of application of ECC/UHPFRCC to structural strengthening/repairing, and concludes that FRP grid-reinforced ECC/UHPFRCC exhibits better potential than ECC/UHPFRCC in improving mechanical performance of composite structures. Finally, the application prospect and future research on FRP grid-reinforced ECC/UHPFRCC are identified.
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