How to Reduce Reclaimed Asphalt Variability: A Full-Scale Study

Construction and Building Materials 2018
Mārtiņš Zaumanis, Jānis Oga, Viktors Haritonovs

A 270 m long highly variable pavement section was isolated for this research (video https://youtu.be/ JmkjavMwhao) to evaluate quantitative changes in variability of reclaimed asphalt pavement (RAP) as a result of milling and stockpile homogenisation operations. The results demonstrated that variability of binder properties and binder content reduced by a similar magnitude during milling and mixing, with each operation allowing to increase the maximum RAP content in new mixtures by 10%. Statistical analysis confirmed that filler content increased by 4.8% during milling while average values of other test results were not significantly changed.

Keywords
Reclaimed asphalt, Recycling, Variability, t-Test, Milling, Test section, RAP, Statistical analysis, Homogeneity, RAP content
DOI
10.1016/j.conbuildmat.2018.08.137
Hyperlink
https://www.sciencedirect.com/science/article/pii/S0950061818320774?via%3Dihub

Zaumanis, M., Oga, J., Haritonovs, V. How to Reduce Reclaimed Asphalt Variability: A Full-Scale Study. Construction and Building Materials, 2018, Vol.188, pp.546-554. ISSN 0950-0618. Available from: doi:10.1016/j.conbuildmat.2018.08.137

Publication language
English (en)