Effect of styrene-butadiene-styrene block polymers on the properties of oxidized bitumen and asphalt concrete
Students Name: Trokhymchuk Mykhailo Vasylovych
Qualification Level: master (ESP)
Speciality: Chemical Technology and Engineering
Institute: Institute of Chemistry and Chemical Technologies
Mode of Study: full
Academic Year: 2024-2025 н.р.
Language of Defence: ukrainian
Abstract: Master’s thesiswas performed by M.V. Trokhymchuk,the student of the HTM-21group. Thesis topic: «Effect of styrene-butadiene-sturene block polymers on the properties of oxidized bitumen and asphalt concrete». Themaster’sthesisisdevotedtoanurgentprobleminthefieldofroadconstructionmaterials?improvingtheperformanceofoilroadbitumenandasphaltconcretemadeontheirbasis. Bitumenmodificationisoneofthekeyareasforimprovingroadconstructionmaterials, particularlyinthefaceofgrowingloadsonroadinfrastructure, extremeclimaticconditionsandtheneedtoincreasethedurabilityofpavements. Traditionaloxidisedbitumen, althoughwidelyused, haslimitedheatresistance, ispronetoaging, crackingandlossofelasticity, whichreducestheefficiencyoftheasphaltpavementoveritsservicelife. Inthiscontext, modifyingbitumenwithpolymeradditivescansignificantlyimproveitsphysical, mechanicalandoperationalproperties. Particularlynoteworthyarestyrene-butadiene-styrene (SBS) blockpolymers, whichareamongthemosteffectivebitumenmodifiers. Duetotheiruniquestructure, SBS polymerscombinethermoplasticityandelasticity, providingbitumenwithincreasedcrackresistanceatlowtemperatures, improveddeformationresistanceathightemperaturesandhigherresistancetoaging. Atthesametime, theuseof SBS-modifierstoimprovethepropertiesofoxidisedbitumenopensupnewopportunitiestoincreasetheefficiencyoftheiruseinasphaltconcrete, inparticularinregionswith a sharplycontinentalclimateorintensetraffic. Thus, thestudyoftheeffectofstyrene-butadiene-styreneblockpolymersonthepropertiesofoxidisedbitumenandcorrespondingasphaltmixturesisextremelyrelevant. Itisaimedatdevelopingmorereliable, durableandadaptiveroadpavementstomodernoperatingconditions, whichisespeciallyimportantinthecontextofpost-warreconstructionoftransportinfrastructureandtransitiontoinnovativetechnologiesinroadconstruction. Theaimoftheresearchistostudytheeffectofstyrene-butadiene-styreneblockpolymersonthepropertiesofoxidisedbitumenandasphaltconcrete. Inthecourseofthework, thefollowingmaintaskswereperformed: • tostudytheeffectof SBS blockpolymersonbitumenproperties; • todeterminethefeasibilityofmodifyingbitumenwith SBS blockpolymers; Also, thematerialbalancewascalculatedand a technologicalschemefortheprocessofobtainingmodifiedbitumenwasdesigned, whichallowstoassesstheefficiencyofrawmaterialuseandoptimisetheproductionprocess. Themaster’sthesisdescribesandcalculatesthemaintechnicalandeconomicindicatorsoftheresearch. Keywords:bitumen, binder, SBS blockpolymers, modification, asphaltconcrete. References. 1. Gunka, V., Astakhova, O., Hrynchuk, Y., Sidun, I., Reutskyy, V., Mirchuk, I., &Poliak, O. (2024). A ReviewofRoadBitumenModificationMethods. Part 1–PhysicalModification. ChemistryandChemicalTechnology, 18, 295-304. 2. Pyshyev, S., Gunka, V., &Prysiazhnyi, Y. (2019). Polymermodifiedbitumen. ChemistryandChemicalTechnology, 10,(4), 631-636. 3. Pyrig, Ya. I., Galkin, A. V., Oksak, S. V., & SO, S. B. (2022). Modyfikatsiiabitumuvtorynnympolimerom. Suchasnitekhnolohiitametodyrozrakhunkiv u budivnytstvi, (17), 111–119.