1. Department of Road Engineering, Empa Laboratory for Road Engineering/Sealing Component, Swiss Federal Laboratories for Material Science and Technology, Ueberlandstr. 129, Empa, Duebendorf, Switzerland (Corresponding author), e-mail: christiane.raab@empa.ch, https://orcid.org/0000-0003-3381-0184
2. Department of Road Engineering, Empa Laboratory for Road Engineering/Sealing Component, Swiss Federal Laboratories for Material Science and Technology, Ueberlandstr. 129, Empa, Duebendorf, Switzerland