Material optimization and optimum asphalt content design of asphalt mixture in salty and humid environment
作者： Ke Zhang , Yaofei Luo , Yunze Wang , Wenlong Li , Gan Yu
DOI: 10.1016/J.CONBUILDMAT.2018.11.158
关键词:
摘要: Abstract To improve the water stability of asphalt mixture in coastal areas, optimization anti-stripping agent and design optimum content were studied according to characteristic salty humid environment. Firstly, improved boiling test was put forward determine type dosage suitable for environment preliminarily. Secondly, improvement effect on evaluated. The range eventually determined. Finally, method based indirect tensile strength (ITS) proposed. results show that PA-1 (P), HT-09 (H), AMR (A) TJ-066 (T) all adhesion between aggregate environment, but performance H declines significantly after aging. A is recommended 0.5–0.6% by weight asphalt. temperature 40 °C loading rate 5 mm/min are proposed as appropriate condition test. Replacing ITS combining with volume indexes could ensure good
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