A RECIRCLING ASPHALT CONCRETE FOR SUBBASE USING AGGREGATES OF SCRAPPED ASPHALT CONCRETE

摘要

Recycling asphalt concrete for subbase is provided to reduce a risk of breaking asphalt concrete in a water season and secure high quality of the subbase using recycled aggregate of reclaimed asphalt concrete. Recycling asphalt concrete for subbase comprises: 60-80 parts of reclaimed asphalt concrete with particle size of 5mm or greater; 20-40 parts of reclaimed asphalt concrete with particle size of less than 5mm and greater than 0.08mm; 5-15 parts of cement; 3-10 parts of one or more compositions among granular zeolite, limestone and igneous rock; 0.3-3 parts of silica fume used as an admixture; and 0.1-1 part of emulsifying agent by weight. The emulsifying agent is selected from the group consisting of polyoxyethylene laurylether, polyoxyethylene sorbitan trioleate, polyoxyethylene stearate, sodium oleate and potassium oleate.