{ "article_id": 561, "public_id": "d0c1c118-377e-4c51-bd6e-9505503a570b", "internal_identifier": null, "source_identifier": "5:208", "status": "published", "type": "research_article", "title": "Use of Surface Activated Recycled Waste Polypropylene in Bitumen Modification", "title_secondary": null, "abstract": "Bitumen polymer modification has a long history. However, most of the polymers currently used as additive in\r\nbitumen are not economically attractive. Thus, employing recycled materials in flexible highway instead of virgin ones has\r\nbecome a fundamental case for researchers especially in terms of cost efficiency and environmental awareness. To date, many\r\nstudies have been made to investigate using of recycled polymers in bitumen and generally improved physical properties of\r\nbitumen were determined.\r\n\r\nIn this study, the recycled polypropylene (PP) was investigated for bitumen modification. Surfaces of recycled polypropylene\r\n(PP) waste will be activated by chemical method that has never been processed before in Turkey. Free radicals, ions and\r\nfunctional groups will be formed on the surfaces of surface-activated polypropylene and thus homogenous binders having\r\nstrong bonds were obtained by allowing them to have a chemical reaction with bitumen.  \r\n\r\nThe compatibility surface-activated PP admixtures with bitumen and the morphologic structure of the modified bitumen was\r\ninvestigated with the help of FTIR spectroscopy. Conventional test methods such as, penetration, softening point and ductility\r\ntests were also performed on base and PP modified bitumen samples. In order to determine effects of surface-activated waste\r\nPP on aging properties of bitumen, rolling thin film oven test (RTFOT) was performed on to all binders. After determining the\r\nfluidity characteristics of base and PP modified bitumen at high temperatures (135oC) with rotational viscosity (RV) test, the\r\nrutting resistance (complex shear modulus, G* and phase angle, δ) of aged binders under certain temperature and loading\r\nconditions were investigated by dynamic shear rheometer test (DSR).\r\n\r\nThe tests results reveal that a gradually increment in PP modification leads to a decrease in penetration and an increase in\r\nsoftening point which is evidence of an increased stiffness of bitumen. An increment in rutting parameter after modification\r\nobserved by DSR test is a clear indication of better rheological properties of bitumen which means permanent deformation\r\noccurred in flexible pavement can be restrained by surface-activated waste polypropylene modification.  ", "language": "en", "english_title": null, "english_abstract": null, "doi": null, "doi_url": null, "resource_url": "https://www.set-science.com/a/d0c1c118-377e-4c51-bd6e-9505503a570b", "pdf_url": "https://www.set-science.com/a/d0c1c118-377e-4c51-bd6e-9505503a570b/pdf", "og_image": "https://www.set-science.com/assets/img/og-card-v2.png", "authors": [ { "public_id": "79565bfe-f4a4-475f-95c5-ed024fb48f4c", "given": "Perviz", "family": "Ahmetzade", "full": "Perviz Ahmetzade", "literal": null, "orcid": null, "orcid_url": null, "email": "perviz.ahmedzade@ege.edu.tr", "corresponding": true, "sequence": "first", "affiliations": [ { "name": "Civil Engineering Dept., Ege University  ", "department": null, "country": null, "country_code": null, "ror": null, "ror_url": null } ] }, { "public_id": "beff56ee-8c43-47a9-ba2c-c2c67a7d2149", "given": "Cahit", "family": "Yerdelen", "full": "Cahit Yerdelen", "literal": null, "orcid": null, "orcid_url": null, "email": "cahit.yerdelen@ege.edu.tr", "corresponding": false, "sequence": "additional", "affiliations": [ { "name": "Civil Engineering Dept., Ege University  ", "department": null, "country": null, "country_code": null, "ror": null, "ror_url": null } ] }, { "public_id": "5fa321c2-302e-404a-9dcc-bd7686ca5021", "given": "Taylan", "family": "Günay", "full": "Taylan Günay", "literal": null, "orcid": null, "orcid_url": null, "email": "caaaaahit.yerdelen@ege.edu.tr", "corresponding": false, "sequence": "additional", "affiliations": [ { "name": "Department/Civil Engineering, Ege University ", "department": null, "country": null, "country_code": null, "ror": null, "ror_url": null } ] }, { "public_id": "609d27c2-b3f6-4c4c-a55d-dd940023c07d", "given": "Alexander ", "family": "Fainleib ", "full": "Alexander  Fainleib ", "literal": null, "orcid": null, "orcid_url": null, "email": "cahaaaaait.yerdelen@ege.edu.tr", "corresponding": false, "sequence": "additional", "affiliations": [ { "name": "National Academy of Sciences of Ukraine (NASU) ", "department": null, "country": null, "country_code": null, "ror": null, "ror_url": null } ] }, { "public_id": "171910be-9fe2-4da6-adba-fb98133728d5", "given": "Selim", "family": "Altun", "full": "Selim Altun", "literal": null, "orcid": null, "orcid_url": null, "email": "selim.altun@ege.edu.tr", "corresponding": false, "sequence": "additional", "affiliations": [ { "name": "Civil Engineering Dept., Ege University", "department": null, "country": null, "country_code": null, "ror": null, "ror_url": null } ] } ], "keywords": [ "bitumen, recycled polypropylene, surface activation, rutting" ], "translations": [ { "language": "en", "title": "Use of Surface Activated Recycled Waste Polypropylene in Bitumen Modification", "abstract": "Bitumen polymer modification has a long history. However, most of the polymers currently used as additive in\r\nbitumen are not economically attractive. Thus, employing recycled materials in flexible highway instead of virgin ones has\r\nbecome a fundamental case for researchers especially in terms of cost efficiency and environmental awareness. To date, many\r\nstudies have been made to investigate using of recycled polymers in bitumen and generally improved physical properties of\r\nbitumen were determined.\r\n\r\nIn this study, the recycled polypropylene (PP) was investigated for bitumen modification. Surfaces of recycled polypropylene\r\n(PP) waste will be activated by chemical method that has never been processed before in Turkey. Free radicals, ions and\r\nfunctional groups will be formed on the surfaces of surface-activated polypropylene and thus homogenous binders having\r\nstrong bonds were obtained by allowing them to have a chemical reaction with bitumen.  \r\n\r\nThe compatibility surface-activated PP admixtures with bitumen and the morphologic structure of the modified bitumen was\r\ninvestigated with the help of FTIR spectroscopy. Conventional test methods such as, penetration, softening point and ductility\r\ntests were also performed on base and PP modified bitumen samples. In order to determine effects of surface-activated waste\r\nPP on aging properties of bitumen, rolling thin film oven test (RTFOT) was performed on to all binders. After determining the\r\nfluidity characteristics of base and PP modified bitumen at high temperatures (135oC) with rotational viscosity (RV) test, the\r\nrutting resistance (complex shear modulus, G* and phase angle, δ) of aged binders under certain temperature and loading\r\nconditions were investigated by dynamic shear rheometer test (DSR).\r\n\r\nThe tests results reveal that a gradually increment in PP modification leads to a decrease in penetration and an increase in\r\nsoftening point which is evidence of an increased stiffness of bitumen. An increment in rutting parameter after modification\r\nobserved by DSR test is a clear indication of better rheological properties of bitumen which means permanent deformation\r\noccurred in flexible pavement can be restrained by surface-activated waste polypropylene modification.  \r\n", "keywords": [ "bitumen, recycled polypropylene, surface activation, rutting" ] } ], "subjects": [], "subject_names": [], "published_date": "2018-06-23", "published_year": "2018", "received_date": null, "accepted_date": null, "volume": "2", "issue": null, "page_first": "235", "page_last": "236", "article_number": null, "conference": { "short_name": "ISAS 2018", "full_title": "Ist International Symposium on Innovative Approaches in Scientific Studies", "name": "Ist International Symposium on Innovative Approaches in Scientific Studies", "acronym": "ISAS 2018", "location": "Kemer-Antalya, Türkiye", "start_date": "2018-04-11", "end_date": null, "public_id": "1d94fec9-c4fe-4034-9157-0b205eef4e56" }, "proceedings": { "title": "Ist International Symposium on Innovative Approaches in Scientific Studies", "series_title": "Setsci conference indexing system", "publisher": "SET Technology", "isbn": null, "eisbn": null, "issn": "2618-6446", "eissn": null, "doi": null, "doi_prefix": null, "slug": "setsci-volume-2-2018-legacy-5", "public_id": "03da7b1c-cb6e-4f3b-aee4-ac41ee60fd75", "url": "https://www.set-science.com/p/setsci-volume-2-2018-legacy-5" }, "license": { "name": "CC BY 4.0", "url": "https://creativecommons.org/licenses/by/4.0/", "code": "CC-BY-4.0", "open_access": true }, "copyright": { "holder": "SET Technology", "year": "2018" }, "funding_statement": null, "funders": [], "references": [], "statements": { "acknowledgements": null, "conflict_of_interest": null, "data_availability": null, "ai_disclosure": null }, "credit": [], "history": { "published": "2018-06-23" } }