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为了评价加铺碳纤维的桥面板与桥面铺装结构层间的抗剪强度是否满足要求,利用剪力试验机进行了试件层间剪切试验,研究了加铺碳纤维桥面板的表面特性,分析了温度对层间抗剪强度的影响,探索了结构层间施工工艺。结果表明:碳纤维表面的AECR树脂胶能够增强层间粘结层的粘结性能;在加铺碳纤维的桥面板上撒布机械砂3.0 kg/m2,涂层改性沥青1.3 kg/m2,主涂胶涂抹8 h后撒布机械砂,施工工艺最合理,界面抗剪强度最高。
In order to evaluate whether the shear strength between the bridge deck and the deck pavement structure of CFRP pavement meets the requirements, the interlaminar shear test of the CFRP deck was carried out with a shear tester. The surface properties of the CFRP deck were studied. The influence of temperature on the shear strength between layers was analyzed, and the construction technology between layers was explored. The results show that the AECR resin adhesive on the surface of carbon fiber can enhance the bonding performance of the adhesive layer. The mechanical sand 3.0 kg / m2 and the coating modified asphalt 1.3 kg / m2 are sprayed on the bridge deck with carbon fiber. The main adhesive After 8 h spread the mechanical sand, the construction process is the most reasonable, the highest interface shear strength.