Effect of Changes in the Content of Catana Phase in the Asphalt Binder on the Mechanical Properties - 文章详情页

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During　the　aging　and　rejuvenation　process　of　asphalt　binder,　the　proportion　of　the　catana　phase　in　the　bee　structure　on　its　appearance　will　change,　and　the　influence　of　this　change　on　the　mechanical　performances　of　the　asphalt　binder　needs　to　be　further　investigated.　Therefore,　a　two-dimensional　finite　element　model　of　the　bee　structure　is　constructed　on　account　of　the　processed　AFM　images　of　asphalt　binder.　The　stress　and　strain　distribution　law　about　asphalt　binder　microstructure　was　investigated　by　comparing　and　analyzing　the　results　of　simulation　calculations.　The　results　of　the　study　show　that　the　stress　in　the　catana　phase　of　asphalt　binder　appearance　is　significantly　larger　than　that　in　the　peri　phase,　the　internal　stress　in　the　para　phase　is　the　lowest.　The　catana　phase　exhibits　the　least　tensile　strain　due　to　the　fact　that　it　has　the　largest　modulus　of　elasticity,　whereas　the　tensile　strain　within　the　asphalt　binder　is　mainly　concentrated　in　the　para　phase.　©　The　Author(s),　under　exclusive　licence　to　Chinese　Society　of　Pavement　Engineering　2024.

关键词：

Aging and rejuvenation processes Bee structure Mechanical property Asphalt binder Catana phase

作者机构：

[ 1 ] [Huo D.]Hebei Jiaotou Road and Bridge Construction and Development Co., Ltd, Qinhuangdao, China
[ 2 ] [Hou D.]Hebei Jiaotou Road and Bridge Construction and Development Co., Ltd, Qinhuangdao, China
[ 3 ] [Yao X.]National Key Laboratory of Bridge Safety and Resilience, Beijing University of Technology, Beijing, 100124, China
[ 4 ] [Yao X.]The Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing, China
[ 5 ] [Gao W.]Hebei Jiaotou Road and Bridge Construction and Development Co., Ltd, Qinhuangdao, China
[ 6 ] [Yu C.]Hebei Jiaotou Road and Bridge Construction and Development Co., Ltd, Qinhuangdao, China
[ 7 ] [Jia L.]Hebei Jiaotou Road and Bridge Construction and Development Co., Ltd, Qinhuangdao, China
[ 8 ] [Li J.]Hebei Jiaotou Road and Bridge Construction and Development Co., Ltd, Qinhuangdao, China
[ 9 ] [Guo M.]National Key Laboratory of Bridge Safety and Resilience, Beijing University of Technology, Beijing, 100124, China
[ 10 ] [Guo M.]The Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing, China
[ 11 ] [Luo D.]National Key Laboratory of Bridge Safety and Resilience, Beijing University of Technology, Beijing, 100124, China
[ 12 ] [Luo D.]The Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing, China

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