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为确定环氧沥青结合料的施工容留时间,采用Brookfield旋转粘度计,对比研究了C型与N型两种钢桥面铺装用环氧沥青结合料的粘度特性,建立了基于双Arrhenius方程的流变学模型。结果表明,固化温度对环氧沥青流变状态有重要影响,环氧沥青混合物进入凝胶状态之前,该模型的预测结果与试验结果吻合度较高,可用于确定施工容留时间、施工质量控制与优化。C型环氧沥青混合料的施工拌和温度控制宜在110~120℃取低限并保持稳定,N型环氧沥青混合料的施工拌和温度控制宜在110~130℃取中高限并保持稳定。
In order to confirm the construction retention time of epoxy asphalt binder, the viscoelastic properties of epoxy asphalt binder for C-type and N-type steel bridge deck pavement were studied by using Brookfield rotational viscometer. Based on double Arrhenius equation Rheology model. The results show that the curing temperature has an important influence on the rheological behavior of epoxy asphalt. Before the epoxy asphalt mixture enters the gel state, the predicted results are in good agreement with the experimental results and can be used to determine the construction retention time, construction quality control and optimization. C-type epoxy asphalt mixture construction temperature control should take the lower limit of 110 ~ 120 ℃ and maintain a stable, N-type epoxy asphalt mixture construction temperature control should be 110 ~ 130 ℃ to take the high limit and remain stable.