| Our country highway traffic is now in the stage of vigorous development，becauseof the asphalt pavement in use process that reflects the good driving comfort andexcellent usability. However, with the development of the asphalt traffic, many of theasphalt pavement has entered into the phase of rebuilding or overhaul, and in theprocess of waste asphalt will have on the environment caused by the influence. Throughto the waste asphalt recycling and reuse, not only can effectively protect theenvironment was not damaged, also it is helpful on the social benefit and economicbenefit. Therefore, waste asphalt reclamation technology research is necessary andfeasible.This paper studies the problem of asphalt reclamation and the meaning is described,through the analysis of the domestic and foreign research methods of asphalt, this paperput forward through analyzing the properties of the old asphalt, studies its agingmechanism, and through the recycled asphalt mixture ratio design of the asphalt roadwith performance evaluation of a series of research contents and ideological lines.Second, the paper expounds the recovery of the system of the traditional testmethods and its defects asphalt, asphalt recycling methods and the problems arisingfrom this paper put forward the basic technical route, that is the effect of modifiedasphalt and solvent recovery method of analysis. Through to the old asphalt mixture ofthe chemical composition, physical properties of the various index, namely the degree,needle softening point and viscosity, deferred degree index analysis of the evaluation, inorder to know the old asphalt aging mechanism, and used to analysis the asphaltreclamation agent and asphalt reclamation technology.Thirdly, according to the test results of hot-mix asphalt mixture ratio design,analysis the choice applicability good regeneration agent, and determine the mixedquantity of regenerative agent, this is with the occupational main factors affecting theperformance. |
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