Terminal Blend (TB) asphalt rubber is prepared by being sheared with high speed for a long time a high temperature and has good low temperature performance and anti-fatigue performance. But due to the aging of asphalt and desulfurization and degradation of crumb rubber, the high temperature performance of TB is not ideal. In order to propose an effective way to solve this problem and improve the high temperature performance, a series of TB-B and TB-C asphalt were prepared with crumb rubber by changing dosage and preparation temperature in nitrogen environment and soluble crumb rubber in atmospheric environment, respectively. As a comparison group, TB-A asphalt was prepared using crumb rubber under atmospheric environment. Dynamic shear rheometer (DSR) and binding beam rheometer (BBR) were used to investigate the rheological characteristics, polymer segregation experiment was performed to evaluate the storage stability, and Fourier Transform Infrared (FTIR) spectroscopy and thermogravimetric analysis were carried out to explore the aging degree of asphalt. TB-A had good storage stability but was brittle due to serious asphalt aging during preparation, and its high and low temperature performance were not good. The introduction of nitrogen could effectively decline aging degree and guaranteed TB-B best comprehensive performance among these three kinds of modified asphalt. Soluble crumb rubber was obtained by pretreating crumb rubber and making it desulfurize and degrade, which reduced the preparation and consequently inhibit the occurrence of aging. The high and low temperature properties of TB-C met specification, but storage stability was not insufficient when crumb rubber content was more than 15%. Overall, both preparation in nitrogen environment with conventional crumb rubber and preparation in atmospheric environment with soluble crumb rubber can effectively alleviate the aging degree of TB asphalt.

末端共混（TB）沥青橡胶是通过高温长时间高速剪切而制得的，具有良好的低温性能和抗疲劳性能。但是由于沥青的老化以及脱硫和碎胶的降解，TB的高温性能并不理想。为了提出解决该问题并提高高温性能的有效途径，通过改变氮气环境中的用量和制备温度，以及改变大气环境中的可溶性糠胶，用糠胶制备了一系列TB-B和TB-C沥青。 ， 分别。作为比较组，在大气环境下使用碎橡胶制备了TB-A沥青。动态剪切流变仪（DSR）和束缚流变仪（BBR）用于研究流变特性，进行聚合物分离实验以评价其储存稳定性，并进行了傅立叶变换红外光谱（FTIR）和热重分析，以探讨沥青的老化程度。TB-A具有良好的储存稳定性，但由于制备过程中沥青的严重老化而变脆，其高低温性能也不佳。氮的引入可以有效降低老化程度，保证这三种改性沥青中TB-B的最佳综合性能。通过对碎胶进行预处理并使其脱硫和降解而获得可溶的碎胶，这减少了制备并因此抑制了老化的发生。TB-C的高温和低温性能符合规范，但是，当碎胶含量超过15％时，储存稳定性不足。总体而言，既可以在氮气环境中使用常规碎胶进行制备，也可以在大气环境中使用可溶碎胶进行制备，都可以有效地减轻TB沥青的老化程度。