有关Terminal Blend胶粉改性沥青研究的文献综述

Literature Review of Study on Terminal Blend Rubberized Asphalt

在归纳国内外关于TB胶粉改性沥青研究报道基础上,分别从改性机理、制备工艺、改性效果的影响因素、高温性能、低温性能、抗疲劳老化性能以及储存稳定性这几个方面分析了TB胶粉改性沥青的特性。结论显示橡胶粉在高温强剪切条件下在基质沥青中会发生"脱硫降解"反应,胶粉溶解性增加,在沥青中形成较均匀的网状结构;TB胶粉改性沥青的黏度小于普通橡胶沥青,低温性能提升而高温性能一般;TB沥青具有出色的储存稳定性,复合改性后具有良好的应用开发前景。

By reviewing domestic and foreign researches about Terminal Blend rubberized asphalt, this paper tries to analyze the properties of Terminal Blend rubberized asphalt from the perspective of the modification mechanism, preparation technology, the factors of modification effect, high temperature performance, low temperature performance, the fatigue performance and storage stability. It concludes that desulfurization and degrada- tion reaction can occur when rubber powders suffer from high temperature and strong shear condition, which makes crumb powder solubility increase and promotes the forming of a uniform network structure in the asphalt. Meanwhile, the viscosity of TB asphalt is far lower than that of ordinary rubber asphalt and TB asphalt shows good performance at low temperature and excellent storage stability while the high temperature property is barely satisfactory. It maintains that with composite modification TB asphalt has a good application and development prospects.