Centro de Território, Ambiente e Construção
Escola de Engenharia da Universidade do Minho
Campus de Azurém
4800-058 Guimarães, Portugal
Phone: + 351 253 510 200 (517 206)
Fax: + 351 253 510 217
Email: geral@ctac.uminho.pt
@JournalArticle {2337, title = {Rheological characterization of EVA and HDPE polymer modified bitumens under large deformation at service temperature}, journal = {Construction and Building Materials}, volume = {112}, year = {2016}, month = {2016-06-01 00:00:00}, pages = {756 - 764}, publisher = {Elsevier}, abstract = {Large amplitude oscillatory shear (LAOS) coupled with Fourier transform rheology (FTR) was used for the first time to characterize the large deformation behavior of selected bituminous binders at service temperature. Two polymer modified bitumens (PMB) containing recycled EVA and HDPE and two unmodified bitumens were tested with LAOS-FTR. The LAOS-FTR response of all binders was compared at same frequency (experimental approach) and at either same Deborah number or same phase shift angle δ (rheological approach). In all the approaches, LAOS-FTR results allowed to differentiate between all the nonlinear mechanical characteristics of the tested binders.\ All binders show LAOS-FTR patterns reminiscent from colloidal dispersions and emulsions. EVA PMB showed the lowest nonlinear levels compared to HDPE PMB, which is more prone to microstructural changes induced by the range of shear strains tested in LAOS.
}, keywords = {FT-Rheology, LAOS (Large amplitude oscillatory shear), nonlinear rheology, polymer modified bitumen}, issn = {0950-0618}, doi = {10.1016/j.conbuildmat.2016.02.192.}, author = {Gonz{\'a}lez, E. and Costa, L. M. B. and Silva, H. M. R. D. and Hilliou, L.} }
The Centre for Territory, Environment and Construction (CTAC) is a research unit of the School of Engineering of University of Minho (UMinho), recognised by the “FCT – Fundação para a Ciência e Tecnologia” (Foundation for Science and Technology), associated to the Department of Civil Engineering (DEC), with whom it shares resources and namely human resources.
Currently CTAC aggregates 25 researchers holding a PhD of which 20 are faculty professors of the Civil Engineering Department. Read more
Centro de Território, Ambiente e Construção
Escola de Engenharia da Universidade do Minho
Campus de Azurém
4800-058 Guimarães, Portugal
Phone: + 351 253 510 200 (517 206)
Fax: + 351 253 510 217
Email: geral@ctac.uminho.pt