Performance Evaluation of Warm Asphalt Mixtures Containing Chemical Additive and Effect of Incorporating High Reclaimed Asphalt Content
Materials 2021
Mukul Rathore, Viktors Haritonovs, Mārtiņš Zaumanis

Reclaimed asphalt (RA) and Warm mix asphalt (WMA) are two widely used environmen tally friendly mixtures in the paving industry. This study compares the laboratory performance of conventional hot mix asphalt (HMA) with virgin WMA, and WMA containing 60% RA content, using thermal stress restrained specimen test, wheel tracking test, and indirect tensile strength test. Based on test results, a reduction of 15 ◦C in mixing temperature was achieved for WMA mixtures compared to HMA using the given chemical additive. The virgin WMA mixture showed superior cracking resistance but lower rutting resistance than HMA, and incorporation of RA material with out any further modification in the binder, deteriorated both cracking and rutting performance of WMA. It was also shown that laboratory short term aging can significantly affect the performance of the mixtures.


Atslēgas vārdi
WMA; RA; RAP; chemical additive; short term aging; asphalt mixture; TSRST; rutting; cracking; moisture susceptibility
DOI
10.3390/ma14143793
Hipersaite
https://www.mdpi.com/1996-1944/14/14/3793/pdf

Rathore, M., Haritonovs, V., Zaumanis, M. Performance Evaluation of Warm Asphalt Mixtures Containing Chemical Additive and Effect of Incorporating High Reclaimed Asphalt Content. Materials, 2021, Vol. 14, No. 14, Article number 3793. ISSN 1996-1944. Pieejams: doi:10.3390/ma14143793

Publikācijas valoda
English (en)
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