Study On Regeneration Technology Of Asphalt Pavement

Road construction need to consume large amounts of material, Meanwhile road heavy or medium repair can lead to large waste pavement materials If will waste pavement materials recycling applied in road infrastructure construction and maintenance, Can avoid the waste material of land occupied and pile of environmental pollution Can reduce in stone, asphalt, cement demand.Enhance the rates of resource utilization efficiency, reduce loss to realize scientific development wasteTo study and solve recycled asphalt material evaluation, mixture design technical problems Papers rely on asphalt pavement regeneration subject in Beijing area Research suggests the old asphalt pavement mixture regenerated technology in Beijing's scope and occasions. Using orthogonal test method, study the variability recycled material reclaimed asphalt mixture volume parameters and way-use performance impact. RAP characteristics of regenerative asphalt mixture of volume parameter influence ranking for:Fineness modulus-mineral aggregate content of asphalt-asphalt needle into degrees, RAP about regenerative asphalt aging degree in asphalt mixture way-use performance influence the most significant, Secondly the asphalt content for RAP, Finally for RAP aggregate sizes. Recycled asphalt mixture asphalt mixture with ordinary, as its way-use performance can meet the production requirements specification. Choose 3 kinds of emulsifier, with cold regeneration of emulsified bitumen product development, Choose four asphalt foaming experiment, discover the four asphalt all-natural gap, The difference is the influence of asphalt all-natural how good the deciding factors, Get asphalt foaming performance and foaming temperature, water consumption relationship, Points out the existing asphalt suitable foaming foamed temperature.From modified asphalt, modified asphalt aging and regeneration mechanism and discusses the feasibility of modified asphalt regeneration theory basis; Proposed common asphalt modified asphalt and aging and the regeneration process with consistency in micro principle; Combining badaling highway old materials for aging modified asphalt recycling test process, Puts forward appropriate recovery procedure and method, To Badaling highway old modified asphalt mixture recycling project for object, Test evaluation regeneration modified asphalt mixture way-use performance, In the old material verified by adding quantity certain circumstances regeneration modified asphalt mixture in the engineering project of applicability; This topic completed Beijing south six loop factory mix hot regeneration asphalt pavement regeneration test engineering.