Performance Properties of High Modulus Asphaltconcrete Containing High Reclaimed Asphaltcontent and Polymer Modified Binder
International Journal of Pavement Engineering 2020
Rolands Īzaks, Mukul Rathore, Viktors Haritonovs, Mārtiņš Zaumanis

High modulus asphalt concrete (HMAC) mixtures are produced using hard grade binders or modified bitumen and are known to have exceptional resistance towards rutting and fatigue. Due to the similarity between hard binder and aged reclaimed asphalt (RA) binder, HMAC mixtures have great potential to incorporate higher percentages of RA material. Here we present a study evaluating the performance of HMAC mixtures incorporating high content of RA material. Both hard grade binder and polymer modified bitumen (PMB) were used for all the mixtures with RA content varying from 0% to 70%. The laboratory performance of mixtures was examined using wheel tracking test, semi-circular bend test, thermal stress restrained specimen test, water sensitivity test and four-point bending test. The results demonstrated that it is possible to develop HMAC mixtures with satisfactory performance using RA content up to 70%, by using PMB binder. The mixtures produced using PMB binder outperformed conventional hard grade binder mixtures especially for use in regions with extremely cold winters.


Atslēgas vārdi
High modulus asphalt concrete, polymer modified bitumen, reclaimed asphalt, HMAC, RA
DOI
10.1080/10298436.2020.1850721
Hipersaite
https://www.tandfonline.com/doi/full/10.1080/10298436.2020.1850721

Īzaks, R., Rathore, M., Haritonovs, V., Zaumanis, M. Performance Properties of High Modulus Asphaltconcrete Containing High Reclaimed Asphaltcontent and Polymer Modified Binder. International Journal of Pavement Engineering, 2020, Vol. 21, No. 15, 1.-10.lpp. ISSN 1029-8436. e-ISSN 1477-268X. Pieejams: doi:10.1080/10298436.2020.1850721

Publikācijas valoda
English (en)
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