TY  - CONF
AU  - Orešković, Marko
AU  - Porot, Laurent
AU  - Trifunović, Stefan
AU  - Mladenović, Goran
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2210
AB  - The  use  of  Reclaimed  Asphalt  (RA)  into  new  asphalt  mixtures  becomes  an  inevitable  step  for  sustainable  infrastructure.  Saving natural,  non-renewable materials, such as bitumen and aggregates, the asphalt industry is moving forward with more recycling. Although asphalt is a 100% reusable material, high recycling rates are not yet easily achievable due to many limitations, going from technical specifications through RA properties to asphalt plant capabilities. The  rate  of  RA, which  may  be  used  within  a  new  asphalt  mixture,  depends  on  many aspects: variability, moisture and fines contents, presence of polymers, brittleness of aged binder, etc. The latter is directly linked to the degree of the RA binder ageing. As higher RA content increases the asphalt mixture stiffness, the material becomes more brittle and prone to cracking. The use of recycling additives is  taking recycling to the next level by solving these issues. With the growing  need  of  the  industry  for asphalt  recycling  agents,  many  products  have  appeared on the market with different effects. In this study, three asphalt recycling agents (two industrial and one alternative) were used as rejuvenators.  Blends with50% of rejuvenated RA binder (RAb) and virgin binder were subjected to different ageing levels: short (RTFOT), long (PAV for 20h) and prolonged (PAV for 60h). After each ageing level, physical, rheological and chemical properties were evaluated addressing the ageing behaviour of the additives used. Testing results showed that one industrial additive lost almost all its properties after prolonged ageing, while the other additives showed comparable results with the second industrial product.
C3  - RILEM International Symposium on Bituminous Materials
T1  - Empirical, rheological and chemical properties of recycled binder blends with rejuvenators at different ageing levels
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2210
ER  - 

@conference{
author = "Orešković, Marko and Porot, Laurent and Trifunović, Stefan and Mladenović, Goran",
year = "2020",
abstract = "The  use  of  Reclaimed  Asphalt  (RA)  into  new  asphalt  mixtures  becomes  an  inevitable  step  for  sustainable  infrastructure.  Saving natural,  non-renewable materials, such as bitumen and aggregates, the asphalt industry is moving forward with more recycling. Although asphalt is a 100% reusable material, high recycling rates are not yet easily achievable due to many limitations, going from technical specifications through RA properties to asphalt plant capabilities. The  rate  of  RA, which  may  be  used  within  a  new  asphalt  mixture,  depends  on  many aspects: variability, moisture and fines contents, presence of polymers, brittleness of aged binder, etc. The latter is directly linked to the degree of the RA binder ageing. As higher RA content increases the asphalt mixture stiffness, the material becomes more brittle and prone to cracking. The use of recycling additives is  taking recycling to the next level by solving these issues. With the growing  need  of  the  industry  for asphalt  recycling  agents,  many  products  have  appeared on the market with different effects. In this study, three asphalt recycling agents (two industrial and one alternative) were used as rejuvenators.  Blends with50% of rejuvenated RA binder (RAb) and virgin binder were subjected to different ageing levels: short (RTFOT), long (PAV for 20h) and prolonged (PAV for 60h). After each ageing level, physical, rheological and chemical properties were evaluated addressing the ageing behaviour of the additives used. Testing results showed that one industrial additive lost almost all its properties after prolonged ageing, while the other additives showed comparable results with the second industrial product.",
journal = "RILEM International Symposium on Bituminous Materials",
title = "Empirical, rheological and chemical properties of recycled binder blends with rejuvenators at different ageing levels",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2210"
}

Orešković, M., Porot, L., Trifunović, S.,& Mladenović, G.. (2020). Empirical, rheological and chemical properties of recycled binder blends with rejuvenators at different ageing levels. in RILEM International Symposium on Bituminous Materials.
https://hdl.handle.net/21.15107/rcub_grafar_2210

Orešković M, Porot L, Trifunović S, Mladenović G. Empirical, rheological and chemical properties of recycled binder blends with rejuvenators at different ageing levels. in RILEM International Symposium on Bituminous Materials. 2020;.
https://hdl.handle.net/21.15107/rcub_grafar_2210 .

Orešković, Marko, Porot, Laurent, Trifunović, Stefan, Mladenović, Goran, "Empirical, rheological and chemical properties of recycled binder blends with rejuvenators at different ageing levels" in RILEM International Symposium on Bituminous Materials (2020),
https://hdl.handle.net/21.15107/rcub_grafar_2210 .

TY  - CONF
AU  - Orešković, Marko
AU  - Trifunović, Stefan
AU  - Mladenović, Goran
AU  - Bohuš, Štepan
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1731
AB  - This paper presents an experimental study of the influence of a reinforcement system on fatigue resistance of asphalt concrete. For purpose of this research, unreinforced and grid-reinforced asphalt specimens were tested. Both groups of specimens were manufactured using non-standard method. A 1-ton roller had been used to prepare two-layered slabs with total height of 70 mm. Further, slabs were sawed to obtain beams 6 cm wide and 400 mm long. The total height of each beam was 50 mm, including 20 mm of the bottom layer and 30 mm of the upper layer. The reinforced specimens contained self-adhesive geosynthetic grid between layers. The four point bending beam test, according to EN 12697-24:2012, was used for fatigue testing, while results were analyzed using various failure criteria. The experiment helped to quantify the extension of fatigue life that can be obtained by reinforcement, depending on the selected testing conditions and fatigue criteria.
PB  - CRC Press/Balkema
C3  - Bituminous Mixtures and Pavements VII: Proceedings of the 7th International Conference on Bituminous Mixtures and Pavements
T1  - Fatigue Resistance of a Grid-Reinforced Asphalt Concrete using Four Point Bending Beam Test
EP  - 594
SP  - 589
DO  - 10.1201/9781351063265-79
ER  - 

@conference{
author = "Orešković, Marko and Trifunović, Stefan and Mladenović, Goran and Bohuš, Štepan",
year = "2019",
abstract = "This paper presents an experimental study of the influence of a reinforcement system on fatigue resistance of asphalt concrete. For purpose of this research, unreinforced and grid-reinforced asphalt specimens were tested. Both groups of specimens were manufactured using non-standard method. A 1-ton roller had been used to prepare two-layered slabs with total height of 70 mm. Further, slabs were sawed to obtain beams 6 cm wide and 400 mm long. The total height of each beam was 50 mm, including 20 mm of the bottom layer and 30 mm of the upper layer. The reinforced specimens contained self-adhesive geosynthetic grid between layers. The four point bending beam test, according to EN 12697-24:2012, was used for fatigue testing, while results were analyzed using various failure criteria. The experiment helped to quantify the extension of fatigue life that can be obtained by reinforcement, depending on the selected testing conditions and fatigue criteria.",
publisher = "CRC Press/Balkema",
journal = "Bituminous Mixtures and Pavements VII: Proceedings of the 7th International Conference on Bituminous Mixtures and Pavements",
title = "Fatigue Resistance of a Grid-Reinforced Asphalt Concrete using Four Point Bending Beam Test",
pages = "594-589",
doi = "10.1201/9781351063265-79"
}

Orešković, M., Trifunović, S., Mladenović, G.,& Bohuš, Š.. (2019). Fatigue Resistance of a Grid-Reinforced Asphalt Concrete using Four Point Bending Beam Test. in Bituminous Mixtures and Pavements VII: Proceedings of the 7th International Conference on Bituminous Mixtures and Pavements
CRC Press/Balkema., 589-594.
https://doi.org/10.1201/9781351063265-79

Orešković M, Trifunović S, Mladenović G, Bohuš Š. Fatigue Resistance of a Grid-Reinforced Asphalt Concrete using Four Point Bending Beam Test. in Bituminous Mixtures and Pavements VII: Proceedings of the 7th International Conference on Bituminous Mixtures and Pavements. 2019;:589-594.
doi:10.1201/9781351063265-79 .

Orešković, Marko, Trifunović, Stefan, Mladenović, Goran, Bohuš, Štepan, "Fatigue Resistance of a Grid-Reinforced Asphalt Concrete using Four Point Bending Beam Test" in Bituminous Mixtures and Pavements VII: Proceedings of the 7th International Conference on Bituminous Mixtures and Pavements (2019):589-594,
https://doi.org/10.1201/9781351063265-79 . .

TY  - JOUR
AU  - Oreskovic, Marko
AU  - Trifunović, Stefan
AU  - Mladenović, Goran
AU  - Bohuš, Štepan
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1922
AB  - Флексибилне коловозне конструкције су подложне појави пукотина услед замора и термичких утицаја, а значајан проблем представља и појава рефлектованих пукотина код полукрутих коловозних конструкција или код крутих које су пресвучене слојевима асфалта. Армирањем асфалтних слојева применом геомрежа, могуће је значајно успорити, ако не и спречити појаву пукотина. У оквиру овог рада приказани су резултати експерименталног истраживања чији је циљ био да се утврди утицај примене геомреже на отпорност асфалт бетона на замор. Испитана су два двослојна сета узорака, са и без геомреже (ојачани и неојачани). Испитне гредице су исечене из плоча које су припремљене нестандардном методом, употребом ваљка од једне тоне. Дебљина доњег слоја асфалта у гредицама је била 20 mm, дебљина горњег слоја 30 mm, ширина 60 mm и дужина 400 mm. Ојачани узорци садржали су самолепљиву геосинтетичку мрежу велике чврстоће између слојева. Испитивање отпорности асфaлтних мешавина на замор спроведено је опитом савијања гредица у четири тачке, док су за анализу резултата исптивања коришћена два критеријума за дефинисање замора. Истраживање је помогло да се процени продужетак века на замор применом геомрежа у зависности од примењеног критеријума за дефинисање замора.
AB  - Flexible pavement structures are prone to cracking due to the fatigue and thermal influence, while a significant problem presents the appearance of reflective cracking in semi-rigid pavement structures or in rigid pavements overlaid with asphalt concrete. Reinforcement of asphalt concrete by using geogrids substantially slow down, if not stop crack propagation. The paper presents the results of an experimental study aimed at determining the influence of geogrid application on the fatigue resistance of asphalt concrete. Two double layered sets of specimens, with and without a grid, were tested (reinforced and unreinforced). Testing beams were cut from the slabs prepared by a non-standard method, using a one-ton roller. The thickness of the bottom layer of asphalt beams was 20 mm, the thickness of the upper layer was 30 mm, the width was 60 mm and the length 400 mm. Reinforced samples contained a high-strength adhesive geosynthetic grid between layers. The testing of fatigue resistance of asphalt mixtures was carried out by application of the four-point bending beam test, while two failure criteria were used to analyze the testing results. Presented research helped to quantify the extension of fatigue life that can be obtained by reinforcement, depending on the fatigue criteria.
PB  - Srpsko društvo za puteve VIA VITA
PB  - Serbian society for roads VIA VITA
T2  - Put i saobraćaj
T1  - Одређивање отпорности на замор асфалтних узорака ојачаних геомрежом применом методе савијања гредица у четири тачке
T1  - Determining of the fatigue resistance of a grid-reinforced asphalt concrete by using four point bending beam test
EP  - 27
IS  - 4
SP  - 21
VL  - 64
DO  - https://doi.org/10.31075/PIS.64.04.03
ER  - 

@article{
author = "Oreskovic, Marko and Trifunović, Stefan and Mladenović, Goran and Bohuš, Štepan",
year = "2018",
abstract = "Флексибилне коловозне конструкције су подложне појави пукотина услед замора и термичких утицаја, а значајан проблем представља и појава рефлектованих пукотина код полукрутих коловозних конструкција или код крутих које су пресвучене слојевима асфалта. Армирањем асфалтних слојева применом геомрежа, могуће је значајно успорити, ако не и спречити појаву пукотина. У оквиру овог рада приказани су резултати експерименталног истраживања чији је циљ био да се утврди утицај примене геомреже на отпорност асфалт бетона на замор. Испитана су два двослојна сета узорака, са и без геомреже (ојачани и неојачани). Испитне гредице су исечене из плоча које су припремљене нестандардном методом, употребом ваљка од једне тоне. Дебљина доњег слоја асфалта у гредицама је била 20 mm, дебљина горњег слоја 30 mm, ширина 60 mm и дужина 400 mm. Ојачани узорци садржали су самолепљиву геосинтетичку мрежу велике чврстоће између слојева. Испитивање отпорности асфaлтних мешавина на замор спроведено је опитом савијања гредица у четири тачке, док су за анализу резултата исптивања коришћена два критеријума за дефинисање замора. Истраживање је помогло да се процени продужетак века на замор применом геомрежа у зависности од примењеног критеријума за дефинисање замора., Flexible pavement structures are prone to cracking due to the fatigue and thermal influence, while a significant problem presents the appearance of reflective cracking in semi-rigid pavement structures or in rigid pavements overlaid with asphalt concrete. Reinforcement of asphalt concrete by using geogrids substantially slow down, if not stop crack propagation. The paper presents the results of an experimental study aimed at determining the influence of geogrid application on the fatigue resistance of asphalt concrete. Two double layered sets of specimens, with and without a grid, were tested (reinforced and unreinforced). Testing beams were cut from the slabs prepared by a non-standard method, using a one-ton roller. The thickness of the bottom layer of asphalt beams was 20 mm, the thickness of the upper layer was 30 mm, the width was 60 mm and the length 400 mm. Reinforced samples contained a high-strength adhesive geosynthetic grid between layers. The testing of fatigue resistance of asphalt mixtures was carried out by application of the four-point bending beam test, while two failure criteria were used to analyze the testing results. Presented research helped to quantify the extension of fatigue life that can be obtained by reinforcement, depending on the fatigue criteria.",
publisher = "Srpsko društvo za puteve VIA VITA, Serbian society for roads VIA VITA",
journal = "Put i saobraćaj",
title = "Одређивање отпорности на замор асфалтних узорака ојачаних геомрежом применом методе савијања гредица у четири тачке, Determining of the fatigue resistance of a grid-reinforced asphalt concrete by using four point bending beam test",
pages = "27-21",
number = "4",
volume = "64",
doi = "https://doi.org/10.31075/PIS.64.04.03"
}

Oreskovic, M., Trifunović, S., Mladenović, G.,& Bohuš, Š.. (2018). Одређивање отпорности на замор асфалтних узорака ојачаних геомрежом применом методе савијања гредица у четири тачке. in Put i saobraćaj
Srpsko društvo za puteve VIA VITA., 64(4), 21-27.
https://doi.org/https://doi.org/10.31075/PIS.64.04.03

Oreskovic M, Trifunović S, Mladenović G, Bohuš Š. Одређивање отпорности на замор асфалтних узорака ојачаних геомрежом применом методе савијања гредица у четири тачке. in Put i saobraćaj. 2018;64(4):21-27.
doi:https://doi.org/10.31075/PIS.64.04.03 .

Oreskovic, Marko, Trifunović, Stefan, Mladenović, Goran, Bohuš, Štepan, "Одређивање отпорности на замор асфалтних узорака ојачаних геомрежом применом методе савијања гредица у четири тачке" in Put i saobraćaj, 64, no. 4 (2018):21-27,
https://doi.org/https://doi.org/10.31075/PIS.64.04.03 . .

TY  - CONF
AU  - Trifunović, Stefan
AU  - Orešković, Marko
AU  - Trpčevski, Filip
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1517
AB  - Postoji niz faktora koji utiču na bezbednost saobraćaja. Najuticajniji faktor je svakako čovek, dok put predstavlja veoma važan faktor. Iz tog razloga, proteklih decenija, značajno se nastoji da se u sistemu bezbednosti saobraćaja unapredi faktor puta, kako sa aspekta geometrije, tako i sa aspekta karakteristika habajućih slojeva kolovoza. Jedna od osnovnih uloga kolovozne konstrukcije jeste bezbedno odvijanje saobraćaja, dok stanje kolovoza predstavlja važan faktor kvaliteta (udobnosti) vožnje. U radu su analizirana strana i domaća iskustva vezana za uticaj karakteristika kolovoza i parametara puta na nastanak saobraćajnih nezgoda. Takođe, analizirani su statistički podaci koji su prikupljeni od strane saobraćajne policije, u vremenskom periodu od 2006. do 2015. godine, na teritoriji Republike Srbije.
PB  - Fakultet teničkih nauka - Univerzitet u Novom Sadu, Novi Sad
C3  - Bezbednost saobraćaja u lokalnoj zajednici : zbornik radova : XII međunarodna konferencija, Tara, 19-22. april 2017. Knj. 1 = Road Safety in Local Community : Proceedings = XII International Conference, Tara, April 19-22, 2017. Vol. 1
T1  - Uticaj površinskih karakteristika kolovoza i parametara puta na nastanak saobraćajnih nezgoda u Republici Srbiji
EP  - 227
SP  - 219
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1517
ER  - 

@conference{
author = "Trifunović, Stefan and Orešković, Marko and Trpčevski, Filip",
year = "2017",
abstract = "Postoji niz faktora koji utiču na bezbednost saobraćaja. Najuticajniji faktor je svakako čovek, dok put predstavlja veoma važan faktor. Iz tog razloga, proteklih decenija, značajno se nastoji da se u sistemu bezbednosti saobraćaja unapredi faktor puta, kako sa aspekta geometrije, tako i sa aspekta karakteristika habajućih slojeva kolovoza. Jedna od osnovnih uloga kolovozne konstrukcije jeste bezbedno odvijanje saobraćaja, dok stanje kolovoza predstavlja važan faktor kvaliteta (udobnosti) vožnje. U radu su analizirana strana i domaća iskustva vezana za uticaj karakteristika kolovoza i parametara puta na nastanak saobraćajnih nezgoda. Takođe, analizirani su statistički podaci koji su prikupljeni od strane saobraćajne policije, u vremenskom periodu od 2006. do 2015. godine, na teritoriji Republike Srbije.",
publisher = "Fakultet teničkih nauka - Univerzitet u Novom Sadu, Novi Sad",
journal = "Bezbednost saobraćaja u lokalnoj zajednici : zbornik radova : XII međunarodna konferencija, Tara, 19-22. april 2017. Knj. 1 = Road Safety in Local Community : Proceedings = XII International Conference, Tara, April 19-22, 2017. Vol. 1",
title = "Uticaj površinskih karakteristika kolovoza i parametara puta na nastanak saobraćajnih nezgoda u Republici Srbiji",
pages = "227-219",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1517"
}

Trifunović, S., Orešković, M.,& Trpčevski, F.. (2017). Uticaj površinskih karakteristika kolovoza i parametara puta na nastanak saobraćajnih nezgoda u Republici Srbiji. in Bezbednost saobraćaja u lokalnoj zajednici : zbornik radova : XII međunarodna konferencija, Tara, 19-22. april 2017. Knj. 1 = Road Safety in Local Community : Proceedings = XII International Conference, Tara, April 19-22, 2017. Vol. 1
Fakultet teničkih nauka - Univerzitet u Novom Sadu, Novi Sad., 219-227.
https://hdl.handle.net/21.15107/rcub_grafar_1517

Trifunović S, Orešković M, Trpčevski F. Uticaj površinskih karakteristika kolovoza i parametara puta na nastanak saobraćajnih nezgoda u Republici Srbiji. in Bezbednost saobraćaja u lokalnoj zajednici : zbornik radova : XII međunarodna konferencija, Tara, 19-22. april 2017. Knj. 1 = Road Safety in Local Community : Proceedings = XII International Conference, Tara, April 19-22, 2017. Vol. 1. 2017;:219-227.
https://hdl.handle.net/21.15107/rcub_grafar_1517 .

Trifunović, Stefan, Orešković, Marko, Trpčevski, Filip, "Uticaj površinskih karakteristika kolovoza i parametara puta na nastanak saobraćajnih nezgoda u Republici Srbiji" in Bezbednost saobraćaja u lokalnoj zajednici : zbornik radova : XII međunarodna konferencija, Tara, 19-22. april 2017. Knj. 1 = Road Safety in Local Community : Proceedings = XII International Conference, Tara, April 19-22, 2017. Vol. 1 (2017):219-227,
https://hdl.handle.net/21.15107/rcub_grafar_1517 .

TY  - JOUR
AU  - Orešković, Marko
AU  - Trifunović, Stefan
AU  - Mladenović, Goran
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1081
T2  - Put i saobraćaj
T1  - Ispitivanje reoloških karakteristika bitumena Zero shear viscosity
EP  - 20
IS  - 2
SP  - 13
VL  - 63
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1081
ER  - 

@article{
author = "Orešković, Marko and Trifunović, Stefan and Mladenović, Goran",
year = "2017",
journal = "Put i saobraćaj",
title = "Ispitivanje reoloških karakteristika bitumena Zero shear viscosity",
pages = "20-13",
number = "2",
volume = "63",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1081"
}

Orešković, M., Trifunović, S.,& Mladenović, G.. (2017). Ispitivanje reoloških karakteristika bitumena Zero shear viscosity. in Put i saobraćaj, 63(2), 13-20.
https://hdl.handle.net/21.15107/rcub_grafar_1081

Orešković M, Trifunović S, Mladenović G. Ispitivanje reoloških karakteristika bitumena Zero shear viscosity. in Put i saobraćaj. 2017;63(2):13-20.
https://hdl.handle.net/21.15107/rcub_grafar_1081 .

Orešković, Marko, Trifunović, Stefan, Mladenović, Goran, "Ispitivanje reoloških karakteristika bitumena Zero shear viscosity" in Put i saobraćaj, 63, no. 2 (2017):13-20,
https://hdl.handle.net/21.15107/rcub_grafar_1081 .