摘要
随着对沥青材料低温性能要求的提高,沥青的低温性能评价方法不断发展完善,测力延度试验是评价沥青材料低温性能的有效方法之一,测力延度试验的仪器设备价格较低、评价指标丰富、操作简单直观,具有广阔的发展和应用前景。通过国内外文献调研,论述了测力延度试验的发展过程、相关评价指标及定义、各评价指标的特点、测力延度试验的特点及优势、目前尚存在的问题。
Evaluation methods for the low temperature performance of asphalt materials have constantly developed and improved, with the low temperature performance of asphalt materials increasing in demand. Force - ductility test is one of the efficient methods to evaluate the low temperature performance of asphalt ma- terials. This test has vast potential for future development and application for its inexpensive equipment, rich evaluation indexes, simple and intuitive operation. This paper discussed the development of force - ductility test, the definition and characteristics of relevant evaluation indexes, the advantages and characteristics of force -ductility test, currently problems through surveying domestic and foreign literatures.
出处
《石油沥青》
2016年第5期63-68,共6页
Petroleum Asphalt
关键词
测力延度试验
评价指标
韧性比
低温性能
force- ductility test
evaluation indexes
toughness ratio
low temperature performance
