Experiment Research Of Normal Temperature Recycling Technology Of Old Asphalt Mixture

Now highway construct develop rapidly in our country, Every year about 10% asphaltroad surface need repair, Bring a great deal of old asphalt mixture, If these old asphalt mixturewere antiquated, Not only pollute environment, but also waste resource, So the research ofrecycling technology of old asphalt mixture is needed.This article as the old asphalt mixture of ha-tong highway road surface been repaired toobject, Through laboratory research, Estimate the old asphalt mixture, Ascertain the gradationand asphalt content of old asphalt mixture; Select two kinds of regenerant, Based on therelation of regenerant dosage and the primary index of regenerate asphalt to ascertain theoptimum regenerant content, Estimate their regenerate capability and antiaging capability;Ascertain the kind of impregnant and the dosage, Through the manner of confecting liquidasphalt to achieve the objective of mixing in normal temperature; Design impregnant normaltemperature regenerate asphalt mixture, Test their road performance, Ascertain optimumasphalt content and optimum rate of old mixture using, Analyse economy feasibility ofimpregnant normal temperature regenerate project and apply foreground, For the design,theconstruction of impregnant normal temperature regenerate asphalt mixture provides thereference basis.