AGING OF ASPHALT BINDERS AND ASPHALT MIXTURES. SUMMARY PART II: AGING SIMULATION AND AGING REDUCTION TECHNIQUES

This the second part of an article written with the purpose of summarizing and describing the most important aspects that the pavement engineer should know about the aging of asphalt binders and asphalt mixtures. The first part presented the changes in physical and chemical properties undergone in asphalt binders and asphalt mixtures when they age. This article shows the most widely used methods for simulating the aging of asphalt materials. Additionally, the most popular and currently used techniques for reducing aging effects in mechanical response and durability of asphalt mixtures in service are presented.