Experimental Study of Tensile Properties of Styrene–Butadiene–Styrene Modified Asphalt Binders
The requirements imposed on road pavements are ever increasing nowadays, necessitating the improvement of the properties of paving materials. The most commonly used paving materials include bituminous mixtures that are composed of aggregate grains bound by a bituminous binder. The properties of bitu...
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doaj-c658559e30db4199961190083d5687a62021-04-01T23:09:11ZengMDPI AGMaterials1996-19442021-04-01141734173410.3390/ma14071734Experimental Study of Tensile Properties of Styrene–Butadiene–Styrene Modified Asphalt BindersPaweł Mieczkowski0Bartosz Budziński1Mieczysław Słowik2Jan Kempa3Wojciech Sorociak4Faculty of Civil and Environmental Engineering, West Pomeranian University of Technology Szczecin, Al. Piastów 17, 70-310 Szczecin, PolandFaculty of Civil and Environmental Engineering, West Pomeranian University of Technology Szczecin, Al. Piastów 17, 70-310 Szczecin, PolandFaculty of Civil and Transport Engineering, Poznan University of Technology, Piotrowo 3, 60-965 Poznań, PolandFaculty of Civil and Environmental Engineering and Architecture, UTP University of Science and Technology in Bydgoszcz, Al. Prof. S. Kaliskiego 7, 85-796 Bydgoszcz, PolandFaculty of Civil Engineering, Silesian University of Technology, Akademicka St. 2, 44-100 Gliwice, PolandThe requirements imposed on road pavements are ever increasing nowadays, necessitating the improvement of the properties of paving materials. The most commonly used paving materials include bituminous mixtures that are composed of aggregate grains bound by a bituminous binder. The properties of bitumens can be improved by modification with polymers. Among the copolymers used for modifying bitumens, styrene–butadiene–styrene, a thermoplastic elastomer, is the most commonly used. This article presents the results of tests conducted on bitumens modified with two types of styrene–butadiene–styrene copolymer (linear and radial). Two bitumen types of different penetration grades (35/50 and 160/220) were used in the experiments. The content of styrene–butadiene–styrene added to the bitumen varied between 1% and 6%. The results of the force ductility test showed that cohesion energy can be used for qualitative evaluation of the efficiency of modification of bitumen with styrene–butadiene–styrene copolymer. The determined values of the cohesion energy were subjected to the original analysis taking into account the three characteristic elongation zones of the tested binders. The performed analyses made it possible to find a parameter whose values correlate significantly with the content of styrene–butadiene–styrene copolymer in the modified bitumen. With smaller amounts of added modifier (approximately 2%), slightly better effects were obtained in the case of linear copolymer styrene–butadiene–styrene and for larger amounts of modifier (5–6%) radial copolymer styrene–butadiene–styrene was found to be more effective. This is confirmed by the changes in the binder structure, as indicated by the penetration index (PI).https://www.mdpi.com/1996-1944/14/7/1734asphalt binderstyrene–butadiene–styrene copolymerforce ductility testrheologymodified bitumen |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Paweł Mieczkowski Bartosz Budziński Mieczysław Słowik Jan Kempa Wojciech Sorociak |
spellingShingle |
Paweł Mieczkowski Bartosz Budziński Mieczysław Słowik Jan Kempa Wojciech Sorociak Experimental Study of Tensile Properties of Styrene–Butadiene–Styrene Modified Asphalt Binders Materials asphalt binder styrene–butadiene–styrene copolymer force ductility test rheology modified bitumen |
author_facet |
Paweł Mieczkowski Bartosz Budziński Mieczysław Słowik Jan Kempa Wojciech Sorociak |
author_sort |
Paweł Mieczkowski |
title |
Experimental Study of Tensile Properties of Styrene–Butadiene–Styrene Modified Asphalt Binders |
title_short |
Experimental Study of Tensile Properties of Styrene–Butadiene–Styrene Modified Asphalt Binders |
title_full |
Experimental Study of Tensile Properties of Styrene–Butadiene–Styrene Modified Asphalt Binders |
title_fullStr |
Experimental Study of Tensile Properties of Styrene–Butadiene–Styrene Modified Asphalt Binders |
title_full_unstemmed |
Experimental Study of Tensile Properties of Styrene–Butadiene–Styrene Modified Asphalt Binders |
title_sort |
experimental study of tensile properties of styrene–butadiene–styrene modified asphalt binders |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2021-04-01 |
description |
The requirements imposed on road pavements are ever increasing nowadays, necessitating the improvement of the properties of paving materials. The most commonly used paving materials include bituminous mixtures that are composed of aggregate grains bound by a bituminous binder. The properties of bitumens can be improved by modification with polymers. Among the copolymers used for modifying bitumens, styrene–butadiene–styrene, a thermoplastic elastomer, is the most commonly used. This article presents the results of tests conducted on bitumens modified with two types of styrene–butadiene–styrene copolymer (linear and radial). Two bitumen types of different penetration grades (35/50 and 160/220) were used in the experiments. The content of styrene–butadiene–styrene added to the bitumen varied between 1% and 6%. The results of the force ductility test showed that cohesion energy can be used for qualitative evaluation of the efficiency of modification of bitumen with styrene–butadiene–styrene copolymer. The determined values of the cohesion energy were subjected to the original analysis taking into account the three characteristic elongation zones of the tested binders. The performed analyses made it possible to find a parameter whose values correlate significantly with the content of styrene–butadiene–styrene copolymer in the modified bitumen. With smaller amounts of added modifier (approximately 2%), slightly better effects were obtained in the case of linear copolymer styrene–butadiene–styrene and for larger amounts of modifier (5–6%) radial copolymer styrene–butadiene–styrene was found to be more effective. This is confirmed by the changes in the binder structure, as indicated by the penetration index (PI). |
topic |
asphalt binder styrene–butadiene–styrene copolymer force ductility test rheology modified bitumen |
url |
https://www.mdpi.com/1996-1944/14/7/1734 |
work_keys_str_mv |
AT pawełmieczkowski experimentalstudyoftensilepropertiesofstyrenebutadienestyrenemodifiedasphaltbinders AT bartoszbudzinski experimentalstudyoftensilepropertiesofstyrenebutadienestyrenemodifiedasphaltbinders AT mieczysławsłowik experimentalstudyoftensilepropertiesofstyrenebutadienestyrenemodifiedasphaltbinders AT jankempa experimentalstudyoftensilepropertiesofstyrenebutadienestyrenemodifiedasphaltbinders AT wojciechsorociak experimentalstudyoftensilepropertiesofstyrenebutadienestyrenemodifiedasphaltbinders |
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1724175592189853696 |