TY - GEN
T1 - Microstructural, chemical and thermal analyses of Warm Mix Asphalt
AU - Menapace, I.
AU - Masad, E.
AU - Little, D.
AU - Kassem, E.
AU - Bhasin, A.
PY - 2014
Y1 - 2014
N2 - Warm Mix Asphalts (WMA) have been used in pavement construction during the past two decades with good performance. Many studies focused on understanding the macroscopic properties of WMA, while only limited studies attempted to understand the influence of WMA additives on their microstructural properties and composition. This study aims to outline the effect of two WMA additives, Advera® and Sasobit®, on binder properties. The microstructural changes were investigated by means of Atomic Force Microscopy (AFM). The AFM images highlighted the effect of the WMA additives, particularly Sasobit®, on the phases of the binders. Moreover, the formation of phase discontinuities in the matrix indicates the different abilities of the phases to adjust stresses. Nuclear Magnetic Resonance was applied in order to rule out any chemical reactions between original binders and additives. Thermal analyses were applied to study the effect of the WMA additives on the thermal properties of the binders.
AB - Warm Mix Asphalts (WMA) have been used in pavement construction during the past two decades with good performance. Many studies focused on understanding the macroscopic properties of WMA, while only limited studies attempted to understand the influence of WMA additives on their microstructural properties and composition. This study aims to outline the effect of two WMA additives, Advera® and Sasobit®, on binder properties. The microstructural changes were investigated by means of Atomic Force Microscopy (AFM). The AFM images highlighted the effect of the WMA additives, particularly Sasobit®, on the phases of the binders. Moreover, the formation of phase discontinuities in the matrix indicates the different abilities of the phases to adjust stresses. Nuclear Magnetic Resonance was applied in order to rule out any chemical reactions between original binders and additives. Thermal analyses were applied to study the effect of the WMA additives on the thermal properties of the binders.
UR - http://www.scopus.com/inward/record.url?scp=84896987263&partnerID=8YFLogxK
U2 - 10.1201/b16730-24
DO - 10.1201/b16730-24
M3 - Conference contribution
AN - SCOPUS:84896987263
SN - 9781138001473
T3 - Sustainability, Eco-Efficiency and Conservation in Transportation Infrastructure Asset Management - Proceedings of the 3rd International Conference on Tranportation Infrastructure, ICTI 2014
SP - 157
EP - 168
BT - Sustainability, Eco-Efficiency and Conservation in Transportation Infrastructure Asset Management - Proceedings of the 3rd International Conference on Transportation Infrastructure, ICTI 2014
PB - Taylor and Francis - Balkema
T2 - 3rd International Conference on Transportation Infrastructure, ICTI 2014
Y2 - 22 April 2014 through 25 April 2014
ER -