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改性沥青路面裂缝贴的制备及其性能影响因素
作者：王治1，3，侯晓霞2，吴强2，王婷婷1，王丽玥4，王韩1，3
（1.河南建筑材料研究设计院有限责任公司，河南 郑州 450002；2.河南华瑞兴业防水科技有限公司，河南 郑州 450002；
3.河南省科学院质量检验与分析测试研究中心，河南 郑州 450002；4.河南省计量科学研究院，河南 郑州 450000）
摘要：介绍了沥青路面病害的处理方法及改性沥青裂缝贴试样制备和性能测试方法，研究了增塑剂、改性剂、增黏剂、填料等对沥青及裂缝贴软化点、低温柔性、剥离强度、剪切强度、持黏性的影响。结果表明，加入适量的增塑剂能提高沥青/裂缝贴的性能。结合环保、成本等因素得出了适宜的原料配比，并测试了以该配比制备的裂缝贴的相关性能。
关键词：改性沥青；裂缝贴；低温柔性；剥离强度
中图分类号：TU57+7 文献标识码：A 文章编号：1001-702X（2020）02-0117-03
Preparation of modified asphalt crack paste and its performance impact factors
WANG Zhi1，3，HOU Xiaoxia2，WU Qiang2，WANG Tingting1，WANG Liyue4，WANG Han1，3
（1.Henan Building Materials Research and Design Institute Co. Ltd.，Zhengzhou 450002，China；2.Henan Huarui Xingye Waterproof Technology Co. Ltd.，Zhengzhou 450002，China；3.Henan Academy of Science Quality Inspection and Analytical Test Research Center，Zhengzhou 450002，China；4.Henan Institute of Metrology，Zhengzhou 450000，China）
Abstract：The treatment methods of asphalt pavement diseases，and the preparation and testing methods of modified asphalt crack paste specimens are introduced. The impact of plasticiser，modifier，tackifier and padding on softening point，low temperature flexibility，peel strength，shear strength and continuous cohesiveness of asphalt/crack paste are discussed respectively，and the results showed that，the addition of plasticizer could improve the performance of asphalt/crack paste. Then a suitable material ratio was obtained in combination of environmental protection and the cost，and the performance of the crack paste prepared according to this ratio were tested.
Key words：modified asphalt，crack paste，low temperature flexibility，peel strength