In order to explore the rheological and anti-aging properties of nano-clay and SBS compositely modified asphalt,physical tests,dynamic shear rheology (DSR),multi-stress creep recovery test (MSCR) and bending beam rheology (BBR) tests were used.The modified asphalt with different nano-clay dosage before and after the rotating film oven heating aging test (RTFOT) was compared to investigate the ageing resistance under different nano-clay dosage before and after short-term aging.The results shown that the addition of nano-clay can significantly improve the high temperature,low temperature performance and anti-aging performance of the modified asphalt.With the increase of the amount of nano-clay,the performance indexes of anti-rutting factor and irreversible creep compliance of the modified asphalt improved to some extent after short-term aging.C16H33(CH3)3NBr activated nano-clay can exhibit better chemical activation and anti-aging properties.
Zhang Heliang
. Rheological property of nano-clay/SBS composite modified asphalt before and after short-term aging[J]. New Chemical Materials, 2021
, 49(2)
: 263
-267
.
DOI: 10.19817/j.cnki.issn 1006-3536.2021.02.060
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