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高黏再生型乳化沥青研制与性能评价
Preparation and Performance Evaluation of High Viscosity Rejuvenating Emulsified Asphalt
投稿时间:2018-08-05  修订日期:2018-10-09
DOI:103969/j.issn.1007 9629201901023
中文关键词:  高黏再生型乳化沥青  再生剂  类型与掺量  PG等级  疲劳性能
英文关键词:high viscosity rejuvenating emulsified asphalt(HVREA)  rejuvenator  type and content  PG grade  fatigue performance
基金项目:山东省重点研发计划资助项目(2017GGX50101)
              
作者单位
穆明浩
MU Minghao
山东高速集团有限公司,山东济南250098
Shandong HiSpeed Group Co., Ltd., Jinan 250098, China
耿立涛
GENG Litao
山东建筑大学交通工程学院,山东济南250101
School of Transportation Engineering, Shandong Jianzhu University, Jinan 250101, China
刘新强
LIU Xinqiang
山东高速建设材料有限公司,山东济南250014
Shandong HiSpeed Construction Materials Co., Ltd., Jinan 250014, China
王峥
WANG Zheng
山东高速建设材料有限公司,山东济南250014
Shandong HiSpeed Construction Materials Co., Ltd., Jinan 250014, China
张锐
ZHANG Rui
山东高速建设材料有限公司,山东济南250014
Shandong HiSpeed Construction Materials Co., Ltd., Jinan 250014, China
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中文摘要:
      为提高乳化沥青材料的使用性能并使其具备恢复旧路沥青性能及抵抗反射裂缝的能力,采用高性能聚合物胶乳和多种再生剂制备了高黏再生型乳化沥青(HVREA),分析了其黏度提升幅度与再生剂类型及掺量的关系,确定了HVREA的适宜黏度范围,优选了设计配方.基于SHRP性能分级体系及梁式复合结构四点弯曲疲劳性能测试方法,评价了HVREA的技术性能.结果表明:经高性能聚合物胶乳和再生剂复合改性后,乳化沥青的黏度得到了显著提升,固含量明显提高,低温和疲劳性能优势明显;建议HVREA的50℃赛波特黏度为200~600s.
英文摘要:
      To improve performance and allocate function of rejuvenating aged asphalt binder and resistance of reflective cracking, a series of high viscosity rejuvenating emulsified asphalt(HVREA) were developed with polymer latex and several rejuvenators. Based on formula designed, emulsified asphalt preparation and technical properties test, effect of type and content of rejuvenator on viscosity of HVREA were studied, appropriate viscosity range of HVREA was decided and optimum formula of HVREA was suggested. PG grade and fatigue performance of HVREA were also evaluated. Results show significant improvement of viscosity and solid content of HVREA, as well as its low temperature and anti fatigue performance. The suggested Saybolt viscosity range of HVREA is 200 to 600s at 50℃.
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