Review on Characterization of Polymer Modified Bitumen with Reclaimed Asphalt Pavement used in HMA

Thethreemainoptionsfor bituminouspavement rehabilitationareexcessivecapacity,recycling,andreconstruction. The processof recyclinginvolvesreusingsome orall ofthe damaged pavement's material, known as reclaimed asphalt pavement (RAP), in newconstruction.Asthecostofbitumenbinderisrisingandpolymerwastefromdifferentindustries areincreasing whichcauseenvironmental affected. Reuse of aresource such as RAP, lessens thedepletion of natural resources, such as natural aggregate and bitumen binder. In the currentstudy, to increase the workability of RAP asphalt mixtures, a softer-graded polymermodifiedbitumen(PMB)wasproducedwitha7%styrene-butadiene-styrene(SBS)copolymer.Marshallhammerswereusedtoproducetheasphaltsampleat10,20,and30%RAPmaterial.Tominimizeoverheadcostandutilizethepolymerwasteitinaway,thisresearchwouldfocus on awarranted technique to recycle the Reclaimed asphalt pavement (RAP) in making the flexiblepavements. A thorough laboratory analysis has been carried out to evaluate the effectivenessof the changed mixture. The results of the primary tests, such as those for penetration,softening points, viscosity, and others, will show that the previously mentioned mixtureperforms significantly better than the normal mix.