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试验采用沥青结合料低温黏结强度测试技术分析正常状态、短期老化状态及长期老化状态下两种沥青抗剥剂对沥青结合料低温黏结强度的影响效果。结果表明:不同类型的抗剥剂在对沥青黏附强度具有增强效果的同时,对沥青结合料自身低温黏结强度的影响效果有明显不同;3种状态下Ⅰ型胺类固体抗剥剂对沥青结合料低温黏结强度无显著影响,Ⅱ型非胺类液体抗剥剂对沥青结合料低温黏结强度产生衰减效应,且衰减程度随温度降低而增大;抗剥剂对低温黏结强度产生衰减效应不利于沥青混合料的低温抗裂性能。
In this experiment, the effect of two kinds of asphalt anti-stripping agent on the low-temperature cohesive strength of asphalt binder was analyzed under the condition of normal condition, short-term aging condition and long-term aging condition by using low temperature bond strength test technology of asphalt binder. The results show that different types of anti-stripping agent have an obvious effect on the adhesive strength of asphalt and the effects of different types of anti-stripping agent on the low-temperature cohesive strength of asphalt binder are obviously different. The low-temperature adhesive strength of the binder had no significant effect. The non-amine type liquid anti-stripping agent had a decay effect on the low-temperature bond strength of asphalt binder, and the decay degree increased with the decrease of temperature. The decay effect of the anti-stripping agent on the low- Low Temperature Cracking Resistance of Asphalt Mixture.