Modul elastičnosti asfalta s bitumenom modificiranim gumenim granulatom kao vezivom

Kisgyörgy, Lajos; Tóth, Csaba G.; Geiger, András

doi:10.14256/jce.1451.2015

Cited by 4 publications

(4 citation statements)

References 4 publications

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“…Therefore, the use of recycled polymer such as crumb rubber offers an inexpensive alternative [9]. For example, Kisgyörgy et al [10] concluded that adding rubber to asphalt binder improved the rutting and fatigue resistances of the asphalt mixture which extend the lifecycle and result in lower maintenance costs. Rubberized binders have improved asphalt pavement's quality, increased rutting and cracking resistance and eventually reduced maintenance costs [11].…”

Section: Introductionmentioning

confidence: 99%

Improving the Temperature Sensitivity of Bitumen for Emergency Pavement Repair

Hawesah

Sadique

Harris

et al. 2021

Period. Polytech. Civil Eng.

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The quality of asphalt pavement maintenance depends on several important factors, including the selection of patching materials and choice of repair technique. Conventional hot mix plants operate to support large paving projects, and economy favors high-volume output. When repairs and maintenance are needed it can be challenging to maintain small quantities of hot bituminous mixtures at a sufficient temperature, especially in the case of winter maintenance and consequently the repair materials cannot be compacted to the desired level in some occasions. The temperature sensitivity plays a significant factor to understand the asphalt pavement failures and indicates how quickly asphalt properties change over time in terms of indices such as penetration index. Therefore, this research aims to develop a polymer-modified binder with reduced temperature sensitivity, and it can be used for hand-laid application in small quantities for emergency winter repair and maintenance. The results showed that the highest penetration index has been achieved by modifying bitumen with 20% rubber and 2% wax, which is reduced the temperature sensitivity by 168%. Additionally, the Fourier Transform Infrared Spectroscopy (FTIR) test and X-Ray Diffraction (XRD) test were conducted to monitor the changes in the chemical composition and identify crystalline phases of polymer modified binder from the aspect of functional groups. It is indicated that the bitumen, rubber, and wax react chemically to build 3D networks that have an interlaced form in the bitumen matrix resulting in reduced temperature sensitivity of the polymer modified binder.

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Section: Introductionmentioning

confidence: 99%

Improving the Temperature Sensitivity of Bitumen for Emergency Pavement Repair

Hawesah

Sadique

Harris

et al. 2021

Period. Polytech. Civil Eng.

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“…Not only polymers are used to modify asphalt binders and mixtures. Researchers also dealt with other additives, as indicated in the literature, including crumb rubber [5][6][7][8][9] produced as a result of waste tyre processing as well as natural asphalts [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Impact of Aramid Fibre Addition on the Mechanical Properties of Selected Asphalt Mixtures

et al. 2020

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Various additives to asphalt binders and asphalt mixtures improving their properties are being used more and more frequently in order to improve the durability of road pavements. Such additives include various types of fibres, including aramid fibres. Tests concerning the impact of aramid fibre addition on the properties of selected asphalt mixtures have been described herein. Two types of asphalt mixtures were assessed: high modulus asphalt concrete (HMAC) and stone mastic asphalt (SMA). The examined asphalt mixtures were assessed with regard to: resistance to rutting, resistance to water and frost as well as fatigue resistance. The conducted tests showed relatively small impact of aramid fibre addition on the improvement of some assessed properties of the analysed asphalt mixtures. The obtained results were also compared to results of the tests conducted by the other research team concerning the impact of aramid fibre addition on the properties of the other types of asphalt mixtures.

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“…According to the Ordinance on management of waste tires [4], a tire is any product placed on the market as an independent product or as a component of another product. Waste tire recycling is also positive from the point of view of responsible waste management and environmental protection, precisely because of the fact that car tires are produced in large quantities and are considered a very problematic category of waste, as shown in [5,6]. Given that only 5 % of recycled tires are used for civil engineering purposes, the aim is to increase this percentage with new technologies and products that will enable adequate use of recycled tires [7].…”

Section: Introductionmentioning

confidence: 99%

Asphalt pavement surface course with recycled rubber

2019

JCE

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Asphalt pavement surface course with recycled rubberAfter the end of their use in road traffic, car tires can be used in road construction as an addition to bitumen mixtures. By adding recycled rubber, bitumen properties are improved and better behaviour of placed asphalt is achieved (lower sensitivity to water action and cracking, and good skid resistance). Results obtained on three asphalt-pavement test sections, with and without addition of rubber in bitumen, are analysed after eleven years of road use. Characteristics of asphalt with different proportions of recycled rubber in bitumen and polymer modified bitumen are analysed. Key words: recycled rubber, bituminous mixture, indirect tensile strength of asphalt Prethodno priopćenje Miroslav Šimun, Sandra Mihalinac Završni sloj asfaltnoga kolnika s dodatkom reciklirane gumeNakon što se prestanu upotrebljavati za prometovanje po kolnicima, umjesto da se odlažu na odlagalište otpada automobilske se gume, mogu koristiti u cestogradnji kao dodatak bitumenskoj mješavini. Dodavanjem reciklirane gume poboljšavaju se svojstava bitumena te se postižu bolja eksploatacijska svojstva asfalta (manja osjetljivost na djelovanje vode i pojavu pukotina te dobre hvatljivosti vozne površine). Nakon jedanaest godina eksploatacije analizirani su rezultati na trima pokusnim dionicama asfaltnoga kolnika s dodatkom gume u bitumenu i bez njega. Analizirana su svojstva asfalta s različitim udjelom reciklirane gume u cestograđevnome i polimerom modificiranome bitumenu. Ključne riječi: reciklirana guma, bitumenska mješavina, indirektna vlačna čvrstoća asfalta Vorherige Mitteilung Miroslav Šimun, Sandra Mihalinac Deckschicht der Asphaltfahrbahn mit recyceltem Gummi Nachdem Autoreifen nicht mehr für den Straßenverkehr verwendet werden, können sie im Straßenbau als Zusatz zur bituminösen Mischung verwendet werden, anstatt auf einer Mülldeponie entsorgt zu werden. Der Zusatz von recyceltem Gummi verbessert die Eigenschaften von Bitumen und es werden bessere Nutzungseigenschaften von Asphalt (geringere Anfälligkeit für Wasser und Risse und gute Griffigkeit der befahrbaren Oberfläche) erzielt. Nach elfjähriger Nutzung wurden die Ergebnisse der drei Teststrecken für Asphaltfahrbahnen mit und ohne Gummizusatz im Bitumen analysiert. Die Eigenschaften des Asphalts mit unterschiedlichen Gehalten an recyceltem Gummi im Straßenbau und im polymermodifizierten Bitumen wurden analysiert.

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Modul elastičnosti asfalta s bitumenom modificiranim gumenim granulatom kao vezivom

Cited by 4 publications

References 4 publications

Improving the Temperature Sensitivity of Bitumen for Emergency Pavement Repair

Improving the Temperature Sensitivity of Bitumen for Emergency Pavement Repair

Assessment of Impact of Aramid Fibre Addition on the Mechanical Properties of Selected Asphalt Mixtures

Asphalt pavement surface course with recycled rubber

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