温拌高模量复合改性沥青及其混合料性能研究
Investigation on the Properties of Warm Mixed High Modulus Composite Modified Asphalt and Its Mixtures
吴蔚 1甘婷 2朱奇1
作者信息
- 1. 江苏现代路桥有限责任公司,江苏 南京 210018
- 2. 江苏中路工程技术研究院有限公司,江苏 南京 211800
- 折叠
摘要
针对沥青路面车辙和热拌高模量沥青混合料施工的环境污染问题,文中提出温拌高模量复合改性沥青混合料技术,对自主研发的IRD温拌高模量剂与Sasobit温拌剂进行对比,研究了改性沥青的三大指标、黏度及混合料的路用性能.结果表明,IRD温拌剂可有效改善SBS改性沥青性能,降低施工温度约20℃,提高混合料动稳定度 69.2%,略微增强低温抗裂性,不影响水稳定性.该研究可为温拌高模量沥青混合料的应用提供理论依据和技术支持.
Abstract
To address the issues of rutting in asphalt pavements and environmental pollution from hot-mix high-modulus asphalt mixtures,a warm-mix high-modulus composite modified asphalt mixture technology is proposed.A comparative study of the self-developed IRD warm-mix high-modulus agent and Sasobit agent examined the key performance indicators of modified asphalt,viscosity,and road performance.Re-sults show that the IRD agent improves SBS modified asphalt performance,lowers construction temperature by about 20℃,increases mixture dynamic stability by 69.2％,slightly enhances low-temperature crack resistance,and maintains water stability.This study offers theoretical and technical support for the application of warm-mix high-modulus asphalt mixtures.
关键词
温拌沥青混合料/高模量剂/路用性能Key words
Warm mixing asphalt mixture/High modulus agent/Road performance引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据