TY - JOUR
T1 - Analysis of the ageing effect on the cyclic tension–compression loading behaviour of bitumen and mastics
AU - Micaelo, Rui
AU - Botella, Rámon
AU - Pérez-Jiménez, Félix
AU - Sá da Costa, Margarida
N1 - The authors would like to acknowledge the financial support from Fundacion Carolina under the program "Programa de movilidad de profesores y investigadores portugueses (Fundacion Endesa), C.2018".
PY - 2020/5/20
Y1 - 2020/5/20
N2 - Within the bituminous mixture the binder is subjected to different stress-state modes but the cyclic loading response is usually characterized on shear mode. This research investigates the evolution with ageing of the undamaged linear rheological behaviour and resistance to cyclic loading of bituminous materials using a tension–compression strain-sweep test. The results show that, similarly to the shear mode response, mineral fillers may induce a greater stiffening effect than ageing treatment, although the comparative evolution with ageing of materials may differ from that based on the shear mode response. The damage progression rate increases faster at lower temperatures and for the stiffer materials (mastics), where the flow deformation contribution to crack formation is smaller. The testing temperature is determinant for the evaluation of the effect of ageing and filler on fatigue resistance.
AB - Within the bituminous mixture the binder is subjected to different stress-state modes but the cyclic loading response is usually characterized on shear mode. This research investigates the evolution with ageing of the undamaged linear rheological behaviour and resistance to cyclic loading of bituminous materials using a tension–compression strain-sweep test. The results show that, similarly to the shear mode response, mineral fillers may induce a greater stiffening effect than ageing treatment, although the comparative evolution with ageing of materials may differ from that based on the shear mode response. The damage progression rate increases faster at lower temperatures and for the stiffer materials (mastics), where the flow deformation contribution to crack formation is smaller. The testing temperature is determinant for the evaluation of the effect of ageing and filler on fatigue resistance.
KW - Ageing
KW - Bituminous mastic
KW - Fatigue testing
KW - Filler-bitumen interaction
KW - Rheological properties
KW - Tension–compression test
UR - http://www.scopus.com/inward/record.url?scp=85078681764&partnerID=8YFLogxK
U2 - 10.1016/j.conbuildmat.2020.118275
DO - 10.1016/j.conbuildmat.2020.118275
M3 - Article
AN - SCOPUS:85078681764
SN - 0950-0618
VL - 243
JO - Construction and Building Materials
JF - Construction and Building Materials
M1 - 118275
ER -