TY - GEN
T1 - Effects of warm mix asphalt (WMA) additives on the properties of WMA mixtures
AU - Zhu, Hong
AU - Xie, Zhaoxing
AU - Fan, Wenzhong
AU - Wang, Lili
AU - Shen, Junan
PY - 2013
Y1 - 2013
N2 - The objective of this research was to investigate the influence of Warm Mix Asphalt (WMA) additives on asphalt mixture properties through the laboratory testing programs such as air voids, tensile strength ratio (TSR), dynamic stability, and low temperature bending failure strain tests. The experimental design included the use of three WMA additives of Sasobit, Evotherm and Rediset, one base (unmodified) binder source, and one modified binder source. The WMA mixtures were compared to those of controls, i.e., mixtures without the additives. Results from this study showed that: (1) WMA mixtures with Rediset, Evotherm, and Sasobit had slightly higher air voids than Hot Mix Asphalt(HMA);(2) All WMA mixtures with SBS modified asphalt have lower TSR values than the original ones. The TSR of the WMA mixtures with base (unmodified) asphalt is not significantly different from HMA; (3) The WMA mixtures with SBS modified asphalt have lower values of the dynamic stability and bending failure strain than HMA, while the WMA mixtures with base asphalt are contrary, except with Rediset additives.
AB - The objective of this research was to investigate the influence of Warm Mix Asphalt (WMA) additives on asphalt mixture properties through the laboratory testing programs such as air voids, tensile strength ratio (TSR), dynamic stability, and low temperature bending failure strain tests. The experimental design included the use of three WMA additives of Sasobit, Evotherm and Rediset, one base (unmodified) binder source, and one modified binder source. The WMA mixtures were compared to those of controls, i.e., mixtures without the additives. Results from this study showed that: (1) WMA mixtures with Rediset, Evotherm, and Sasobit had slightly higher air voids than Hot Mix Asphalt(HMA);(2) All WMA mixtures with SBS modified asphalt have lower TSR values than the original ones. The TSR of the WMA mixtures with base (unmodified) asphalt is not significantly different from HMA; (3) The WMA mixtures with SBS modified asphalt have lower values of the dynamic stability and bending failure strain than HMA, while the WMA mixtures with base asphalt are contrary, except with Rediset additives.
KW - Evotherm and rediset
KW - Properties of warm mix asphalt mixtures
KW - SK base asphalt and SBS modified asphalt
KW - Warm mix asphalt additives of sasobit
UR - http://www.scopus.com/inward/record.url?scp=84873329040&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMM.275-277.2097
DO - 10.4028/www.scientific.net/AMM.275-277.2097
M3 - Conference article
AN - SCOPUS:84873329040
SN - 9783037855911
T3 - Applied Mechanics and Materials
SP - 2097
EP - 2102
BT - Applied Mechanics and Materials I
T2 - 2012 International Conference on Applied Mechanics and Materials, ICAMM 2012
Y2 - 24 November 2012 through 25 November 2012
ER -