| Along with the extension of road network and the increase of volume of traffic, the maintenance work is becoming more and more severe. materials which is not limited by the climate condition of high performance is serious needed.As a kind of excellent repair materials,waterborne epoxy emulsion asphalt mixture can repair the pavement rapidly at normal temperature. Therefore,the article research epoxy emulsifying asphalt mixture.Based on present situation and existing problems of water-epoxy emulsifying asphalt and its mixture,this article will mainly research the following aspects:①Aliphatic epoxy acrylic resin PF5233was selected as epoxy toughening agent,which can improve flexibility; multi-amine curing agent T450were selected as a flexible resin system curing agent; emulsifier PF108were chosen as a waterborne epoxy resin emulsion. For the purposes of this study, considering the curing time, considering the selection of components E-51/PF5233=1:1in the mixture as the recipe mixing cement compound epoxy system.Inversion prepared using water-based epoxy resin emulsion, use PF108emulsifier in an amount of10%.Using electron microscopy morphology waterborne epoxy resin emulsion epoxy showed more evenly distributed in the medium of water.②By the analysis of emulsion mechanism and conditions of emulsified asphalt,anionic emulsifiers selected as U-58asphalt emulsifier,in an amount of1.1%. Using electron microscopy morphology emulsified asphalt, emulsified better results.③By comparing the modified mechanism of modified asphalt emulsion and its preparation method of analysis, binder interface for drawing test and interface tensile test results showed that:when the waterborne epoxy emulsion and emulsified asphalt as a1:1ratio,curing time to meet the test requirements,strong tensile strength, elongation at break compliance.④In the preparation of a good water-based epoxy asphalt emulsion based on epoxy emulsified asphalt mix to optimize the design, and its road performance were studied. Road performance showed that the epoxy asphalt emulsion has good high temperature stability, water stability and low temperature performance, and open travel time to meet the construction requirements.⑤In engineering applications factors(the amount of emulsifier,water,fillers and mixing conditions)which have effect on construction performance are investigated,and corresponding notes are proposed. |
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