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[72890] Artykuł: Relaxation modulus of SMA with polymer modified and highly polymer modified bitumenCzasopismo: MODERN BUILDING MATERIALS, STRUCTURES AND TECHNIQUES Tom: 172, Strony: 731-738ISSN: 1877-7058 Wydawca: ELSEVIER SCIENCE BV, SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS Opublikowano: 2017 Seria wydawnicza: Procedia Engineering Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Materiały z konferencji międzynarodowej (zarejestrowane w Web of Science) Punkty MNiSW: 15 Klasyfikacja Web of Science: Proceedings Paper DOI Web of Science Keywords: rhelogical model  highly modified bitumen  dynamic test  relaxation modulus  |
The article presents the test results of the relaxation modulus of SMA. The samples of SMA mixture were made using polymer modified bitumen PMB 45 / 80-55 (PMB-N) and highly polymer modified bitumen PMB 45 / 80-80 (PMB-HM). Determination of the relaxation modulus were made using DT-CY test (direct tensile test) at 10 degrees C, 20 degrees C and 40 degrees C. To describe the relaxation phenomenon of the bituminous mixture a logit model has been used. The test results indicates that the use of the highly modified bitumen (PMB-HM) caused the increase in the stiffness modulus SMA at high temperature / low frequencies. As a result, the presence of highly polymer modified bitumen will increase the resistance to the permanent deformation of SMA. (C) 2017 The Authors. Published by Elsevier Ltd.