为了揭示混凝土表面粗糙度对 FRP-混凝土界面黏结性能的影响，以灌砂法实现 混凝土表面的粗糙度量化评定，完成了 6 种界面粗糙程度的 FRP-混凝土试件界面的单剪 试验，探讨了混凝土表面粗糙度对 FRP-混凝土界面极限黏结力、黏结强度以及黏结滑移 曲线的影响规律． 研究结果表明: 粗糙度为 0． 44 的试件界面黏结性能最好，极限黏结力和 黏结强度较粗糙度为 0． 25 的试件分别提高 36% ～ 51% 和 124% ～ 221% ． 文中还建立了 基于粗糙度参数的界面有效黏结长度计算模型，发现有效黏结长度在 6 种界面上随粗糙 度的增加总体呈降低的趋势; 粗糙度小于 0． 56 时，试件界面黏结滑移曲线在脆性区间的 刚度相差无几，界面越粗糙，脆性区间越窄，而在塑性阶段，6 种界面试件的黏结滑移曲线 以不同斜率下降，最终发生剥离破坏时的滑移值为 0． 04 ～ 0． 37 mm．

In order to reveal the influence of concrete roughness on the interfacial bonding properties between CFRP and concrete，the roughness of concrete was quantitatively assessed through the sand-pouring method，the single shear test of CFRP-concrete interfaces were completed under 6 different conditions of interfacial roughness， and the influences of concrete roughness on the ultimate bond force，bonding strength and bonding slipping curve of the CFRP-concrete interface were investigated，finding that，as compared with the specimen with a roughness of 0. 25，the specimen with a roughness of 0. 44 possesses the best interfacial bonding property，and its ultimate bond force and strength improve by 36% ～ 51% and 124% ～ 221% ，respectively． Then，a model to calculate the effective bonding length of interface was established on the basis of the roughness parameters． From this model，it is found that ( 1) the effective bonding length of six surfaces generally decreases with the increase of roughness; ( 2) the bonding slipping curves of the samples remain consistent in rigidity in the brittle area，and the rougher the interface，the shorter the brittle section; and ( 3) in the plastic stage，the bonding slipping curves of the samples with 6 interface types slide with different slopes，eventually resulting in a stripping damage at a slipping value of 0. 04 ～ 0. 37mm