Abstract: In order to find a better potting material to improve the anchorage performance of adhesive anchorage for CFRP tendons, the static load tensile tests on the behavior of adhesive anchorage for CFRP tendons were conducted. The test parameters include four different potting material, three different cone angles and five different anchorage lengths. The analysis results shows as follows: ①the anchorage length needs up to at least 50 times of tendon diameter in the Lica building adhesive; ②the Wirelock shrinkages in the process of solidification, which can't be used to straight type anchorage. But the Wirelock can anchorage CFRP tendon when the anchorage with 3 degrees angle; ③the strength of CFRP tendon drops to about 78.87% of the original strength in the high temperature solidification process of chilled cast potting material; ④the anchorage length needs to achieve 40 times of tendon diameter as the epoxy resin mortar is used to anchor CFRP tendon; ⑤in the same condition, the ranking of the elongation in the anchor interior is Lica building adhesive glue, epoxy resin mortar, chilled cast potting material and Wirelock wire rope glue, respectively.

Key words: CFRP tendon, epoxy resin, anchorage potting material, anchorage performance, experimental research