Experimental studies on interface bond strength of non-metallic anchors

In order to avoid the corrosion of steel anchors in ground engineering, since 1990, FRP anchors, a non-metallic anchors, are used abroad to substitute for the traditional steel anchors. FRP anchors have the characteristics of higher tensile strength, better antisepsis, light weight, heat expansion coefficient near to concrete and mortar, et al. It is the first time that FRP anchors are tested in China. Based on pull-out tests of 63 specimens, interface bond strength between FRP anchors and different media are systematically studied, and the results show that FRP anchors have higher interface bond strength. This conclusion can provide verifications and references for the application of FRP anchors in ground engineering.