|
Emulsified asphalt cold recycled asphalt mixture by adding the waste materials , and its own characteristics and there , then it's about performance , especially its water stability of how the engineering concern. This departure from the research status , introduced emulsified asphalt cold recycling mixture scope and main advantages and disadvantages , elaborated emulsified asphalt cold recycling mixture strength formation mechanism . Asphalt mixture by listing the main manifestations of water damage analysis of asphalt and mineral aggregate adhesion peeling principle , and to evaluate the emulsified asphalt and mineral aggregate adhesion between . Combined with domestic and international design methods , the use of orthogonal design , by amending Marshall test to splitting strength , Marshall stability , flow value , compressive strength, porosity evaluation to determine the cold recycled asphalt emulsion mixture ratio , ie cement , emulsified asphalt, mixture gradation , water . On this basis, should be considered old material utilization, Mixture performance as well as social , economic and other factors , through the comparison and selection, and determine the optimum mixing ratio of another group plan . Then this program is based on orthogonal design method, the emulsified asphalt cold recycled mixtures for water stability . By comparing the asphalt mixture water stability evaluation test , the choice of freeze-thaw splitting test residual splitting strength ratio and 48h immersion Marshall residual stability tests to characterize the recycled mixture of emulsified asphalt cold water stability. In immersion Marshall test and freeze-thaw splitting test based on the results of emulsified asphalt , cement , RAP consumption , water consumption , and porosity on the emulsified asphalt cold recycling mixture water stability.
|