Relevant bibliographies by topics / Asphaltic bitumen

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Asphaltic bitumen'

Author: Grafiati
Published: 25 February 2023
Last updated: 26 February 2023

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Journal articles on the topic "Asphaltic bitumen"

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Galdina, V. D., and N. S. Galdin. "Optimization of Temperatures of Hashing Asphaltic Concrete Mixes Taking into Account the Structural Type of Bitumen." Materials Science Forum 945 (February 2019): 226–32. http://dx.doi.org/10.4028/www.scientific.net/msf.945.226.

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Researches by definition of optimum temperatures at hashing asphaltic concrete mixes on bitumens of different structural types with application of a method of mathematical designing of experiments are presented. Varied factors at manufacturing asphaltic concrete mixes were an index of a penetration of bitumen as the characteristic of a structural type of bitumen, the maintenance of bitumen and temperature of hashing of mixes. Processing of results of experiment is executed with application of computer technologies by means of a package of applied programs Maple. Mathematical models of physicomechanical properties of asphaltic concretes in the form of the equations the regressions reflective link between investigated properties of asphaltic concretes and varied factors are received. It is determined that at reduction of an index of a penetration and a rise of temperature of mixing strength of an asphaltic concrete increases. At a rise of temperature of hashing and increas asphalt content in mixes the water-resistance of an asphaltic concrete increases. On extreme dependences of indicators of durability at a tensioning and a tension in bending from hashing temperature optimum temperatures of hashing asphaltic concrete mixes are defined. It is established that optimum temperatures of hashing depends on an index of a penetration of bitumen and raise at its reduction.
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Mohammed, H., and S. A. Adefesobi. "Evaluation of the potential of sasobit polymer as an additive in bitumen and asphaltic concrete." Ife Journal of Science 22, no. 1 (May 26, 2020): 177–81. http://dx.doi.org/10.4314/ijs.v22i1.17.

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This paper evaluated the effects of sasobit polymer (Sasobit®) on the characteristics of asphaltic concrete with a view to investigating its suitability as an additive in asphaltic concrete. Sasobit®, bitumen and aggregates were procured from a Construction Company site office, along Shagamu-Ibadan expressway. Sasobit® modified bitumen was prepared by adding Sasobit® to bitumen with increasing weight of Sasobit® at 1.0, 1.5, 2.0, 2.5 and 3 % by the weight of the bitumen. Penetration and softening point tests were carried out on the samples and the mix-ratio for the bitumen – polymer mixture was determined. Asphaltic concrete samples with and without Sasobit® were prepared. The samples were subjected to Marshall Stability test. The stability, flow, specific density, voids filled with bitumen (VFB), air voids (VA) and voids in the mineral aggregate (VMA) weredetermined. The values of stability, flow, specific density, voids filled with bitumen, air voids and voids filled in the mineral aggregates for sample without Sasobit® were 13.63 kN 2.91 mm, 2.51, 64.64 %, 4.29 % and 18.19 %, respectively, while for those with Sasobit® at mix – ratio of 1.7 % bitumen – polymer mixture, the values were 14.67 kN, 2.41 mm, 2.55, 73.30 %, 3.96 % and 16.39 % respectively. The result showed that, Sasobit® as additive in asphaltic concrete improved its properties. Keywords: Sasobit®, Asphaltic Concrete, Stability, Flow, Voids filled with bitumen, Air voids, Voids in mineral aggregate
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Mohamed, Abdullahi Ali, Soon Yee Wong, Lau Teck Leong, Mohd Ahmadullah Farooqi, Ramadhansyah Putra Jaya, Zaid Hazim Al-Saffar, and Haryati Yaacob. "Durability Phenomena of Bitumen and Bituminous Pavement Materials." Open Civil Engineering Journal 15, no. 1 (September 30, 2021): 279–89. http://dx.doi.org/10.2174/1874149502115010279.

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The durability of asphaltic mixtures, in addition to traffic loading, is greatly influenced by the extremes environmental parameters. For instance, at higher temperatures, bitumen becomes soft, thereby reducing the stiffness of asphalt mixtures and making them vulnerable to rutting. On the other hand, at lower temperatures, the stiffness of bitumen is increased, reducing the flexibility of asphaltic concrete and rendering it prone to fatigue failure. Therefore, this evaluation is an extensive research study on the durability of binder and asphalt mixture with their phenomena. Besides that, this paper intends to delve into the various testing methods and measures adopted to evaluate aging and slowing it down. It also presents a critical review of these methods and proposes a future course of action to better address aging issues. According to the evaluation, the behavior of bitumen on the basis of its source varies; when it is mixed with bitumen modifiers, aggregates, and other filler materials, its behavior becomes even more complex. Hence the understanding of the phenomenon of aging is important and the significance cannot be overemphasized. Extensive research work has been done over the last seven decades to evolve the understanding of short- and long-term aging and to improve the durability of asphaltic mixtures. Generally, the aging of bitumen under the influence of both environment and traffic is irreversible as well as inevitable. Apart from entailing hefty maintenance budgets, it remains a challenge to the researchers to slow down aging.
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Haq, Muhammad, Naveed Ahmad, Muhammad Nasir, Jamal, Murryam Hafeez, Javaria Rafi, Syed Zaidi, and Waqas Haroon. "Carbon Nanotubes (CNTs) in Asphalt Binder: Homogeneous Dispersion and Performance Enhancement." Applied Sciences 8, no. 12 (December 17, 2018): 2651. http://dx.doi.org/10.3390/app8122651.

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Conventional binders cannot meet the current performance requirements of asphaltic pavements due to increase in traffic volumes and loads. Nanomaterials, due to their exceptional mechanical properties, are gaining popularity as bitumen modifiers to enhance the performance properties of the asphaltic concrete. Carbon Nanotubes (CNTs) are one of the most widely used nanomaterials because of their strength properties, light weight, small size, and large surface area. CNT addition results in improved substrate characteristics as compared to other modifiers. Due to high length to diameter ratio, dispersion of CNTs in bitumen is a complex phenomenon. In this study, dispersion of CNTs in bitumen was carried out using both dry and wet mixing techniques, the latter was selected on the basis of homogeneity of the resultant asphalt mixture. Scanning Electron Microscopy (SEM) was used to check the dispersion of CNTs in binder while Fourier Transform Infrared Spectroscopy (FTIR) was carried out to ensure the removal of solvent used for wet mixing. Conventional bitumen tests (penetration, softening point, and ductility), dynamic shear rheometer tests, rolling bottle tests, and bitumen bond strength tests were employed to check the improvement in the rheological and adhesion properties of bitumen while wheel tracker test was used to check the improvement in resistance against permanent deformation of asphalt mixtures after addition of CNTs. Results show that CNTs improved the higher temperature performance and permanent deformation resistance in both binder and mixtures. Improvement in bitumen–aggregate adhesion properties and moisture resistance was also observed.
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Kopylov, V., and O. N. Burenina. "Influence of Oil Sludge on Properties of Asphalt Concretes Used in Regions of the Far North." Materials Science Forum 945 (February 2019): 158–62. http://dx.doi.org/10.4028/www.scientific.net/msf.945.158.

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The paper considers the physicochemical activation of mineral powders used in asphalt concretes. Oil storage wastes, called oil sludges, are proposed to use as a surfactant. Activation of the surface of mineral powders is accomplished during the joint grinding of powder and oil sludge in a ball mill. As a result, the surface of mineral powders acquires hydrophobic properties; their physico-mechanical characteristics are improved: the reduction of porosity, bitumen content, and of the swelling index of asphaltic substances are observed. The introduction of activated powders into the composition of asphalt concretes can significantly reduce the amount of the required bitumen in the mixture. Decrease in water saturation index is detected in asphaltic concrete with activated mineral powders unlike in the test specimen. This implies an improvement in the index of resistance to atmospheric corrosion.
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Elshahat*, Mohamed R., Alaa G. Sherif, Mohamed M. Elshafiey, and Waleed F. Tawhed. "Effect of Polymer Materials (StyreneButadiene-Styrene) on Marshall Asphalt Mix Criteria." International Journal of Engineering and Advanced Technology 10, no. 4 (April 30, 2021): 143–47. http://dx.doi.org/10.35940/ijeat.d2415.0410421.

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this research aims to identify the impact of using polymer materials on physical properties of traditional bitumen used in asphaltic mix based on Marshall Mix design proceedings. During this research, traditional bitumen is modified by Styrene- Butadiene-Styrene (SBS). Percentages of 1,3,5,7, and 9% of SBS by weight of bitumen were mixed. Physical tests such as Penetration Test, Viscosity Test, Softening Point Test, and Flash Point Test were carried out to evaluate the enhancement in the modified bitumen properties. After that, HMA is prepared with polymer modified bitumen to study the change in Marshall asphalt mix criteria. Results show that, using SBS as a modifier agent has a positive impact on the physical properties of traditional bitumen. According to these results, it can be said that the use of SBS polymers showed a significant and noticeable improvement in the performance of the asphalt mixture. Also, modified asphalt mix at any percentage of modifier agent recorded high improvement in stability than the conventional asphalt mix.
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Abudullahi, Ali Mohamed, Kwong Yiing Ting, Wee Kang Choong, and Boon Hoe Goh. "The Effects of Temperature on the Stiffness Modulus of Dense Graded Asphalt Mixtures." Applied Mechanics and Materials 423-426 (September 2013): 997–1000. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.997.

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This study aimed to investigate the effect of temperature on stiffness modulus of asphaltic concrete. The asphaltic concrete mixture were prepared based on Marshall Mix Design method using two different types of bitumen, the 80/100 penetration grade bitumen (80/100 PGB) and Styrene-Butadiene-Styrene (SBS), both with five percent bitumen content. Indirect Tensile Stiffness Modulus (ITSM) test of 1000 N loading was then performed at three different temperatures (25 °C, 30 °C and 40 °C). The results showed that stiffness modulus decreases with increases in temperature for both 80/100 PGB and SBS, which shows the important role of temperature to stiffness modulus of asphaltic concrete. Also, the results showed a higher stiffness modulus for SBS mixtures compare to that of 80/100 PGB mixtures.
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Mhatre, Akshay, Avinash Walunj, Atish Pichake, Ankit Torane, Vinayak Agawane, and Dr Apeksha Mendhe. "Experimental Analysis of HDPE Percentage in Bitumen Samples Using IDT Test." International Journal for Research in Applied Science and Engineering Technology 10, no. 4 (April 30, 2022): 1819–21. http://dx.doi.org/10.22214/ijraset.2022.41637.

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Abstract: The main objective of this research is to evaluate the ability of using recycled plastic waste as a binder material with asphaltic concrete to improve the performance and service life of the road. As bitumen is used as a binder material in asphaltic concrete which is very costly. We can reducethis cost by replacing bitumen (up to some extent) with plastic. There are many types of plastic but here we used only High Density Polyethylene (HDPE) plastic. NHA class B aggregates were used in this research with varying admixture (2, 4, and 6%) and bitumen content (3, 3.5, 4, 4.5, 5,5.5, and 6%). For this purpose Marsha Stability and Flow test and ITS test was carried out whichshowed different results for different percentages of admixture.
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Aliyu Yaro, Nura Shehu, Madzlan Napiah, Muslich Hartadi Sutanto, Aliyu Usman, Intan Kumalasari Mizwar, and Aliyu Mani Umar. "Engineering Properties of Palm Oil Clinker Fine-Modified Asphaltic Concrete Mixtures." Journal of Engineering and Technological Sciences 54, no. 2 (March 25, 2022): 220205. http://dx.doi.org/10.5614/j.eng.technol.sci.2022.54.2.5.

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Palm oil clinker (POC) is a non-biodegradable palm mill by-product typically discarded in dumpsites. This study analyzed the performance of POC powder (POCF) as bitumen modifier in terms of conventional and engineering properties of bitumen and asphalt mixture. For the study, base bitumen of 60/70 penetration grade was utilized and different POCF dosages (0, 2, 4, 6, and 8% by weight of bitumen) were added. The base bitumen was effectively modified with POCF and then characterized. The conventional and engineering properties of the modified bitumen and asphalt mixtures were assessed. From the characterization results, the formation of Si-O crystalline structure and a new Si-OH functional group was identified. Furthermore, a meandering pattern was observed due to the modification of the base bitumen with POCF. Based on the conventional test results it was revealed that the addition of POCF to the base bitumen resulted in a stiffer blend compared to unmodified bitumen. The addition of POCF improved the modified mixtures’ Marshall stability relative to the unmodified mixtures. Analysis of variance (ANOVA) and regression modeling showed the influence and significance of POCF-MB, with R2 values of (95-99%). Finally, the 4-6% POCF dosage was found to be the optimum dosage, yielding the best performance in terms of the engineering properties evaluated.
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Khalaf, Duaa A., Zaynab I. Qasim, and Karim H. Al Helo. "Effect of Modified Asphalt Cement of the Performance of Stone Matrix Mixtures." Engineering and Technology Journal 38, no. 5A (May 25, 2020): 789–800. http://dx.doi.org/10.30684/etj.v38i5a.489.

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This research investigates the behavior of Stone Matrix Asphalt mixtures (SMA) modified with styrene-butadiene-styrene (SBS) polymer at four percentages (1, 2, 3 and 4%) by weight of asphalt cement. The moisture susceptibility and rutting were taken into consideration in this study. To achieve the objective of this research the superpave system is conducted to design the asphalt mixtures. The physical properties of aggregate, bitumen and other mix materials were assessed and evaluated with the laboratory tests. The mixtures were prepared using penetration Graded (40-50) bitumen and a chemical named Polypropylene Fibers was used as a stabilizing additive. Fibers have been used in SMA mixtures for two main reasons: To increase the toughness and fracture resistance of hot mix asphalt (HMA) and to act as a stabilizer to prevent drain down of the asphalt binder. The laboratory tests include indirect tensile strength test, Marshall stability and retained Marshall Stability test (RMS). For rutting test the Roller wheel compactor is used for preparing the asphaltic samples and Wheel tracking device is used to evaluate the rutting of asphaltic slabs. The results showed that the SBS polymer asphalt mixture gave better moisture sensitivity and better fracture resistance according to the study.It is noted that indirect tensile strength ratio (TSR) increases by 93.1 % and the rut depth decreases by 32.5 % when adding 3% SBS polymer to SMA.
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Dissertations / Theses on the topic "Asphaltic bitumen"

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Mocetti, Francesca. "Characterization of moisture susceptibility of asphaltic bitumen." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

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La ricerca riguarda lo studio delle modifiche indotte dalla diffusione di acqua e umidità nelle pavimentazioni stradali con riferimento ai materiali bituminosi. Lo scopo è stato quello di analizzare le implicazioni che si sviluppano a livello chimico e reologico in vari bitumi. In questo progetto oltre alla fase sperimentale, è stato utilizzato un software per la simulazione agli elementi finiti. Per quanto concerne la fase di laboratorio, è stato sviluppato un nuovo protocollo di condizionamento. Tre diversi bitumi sono stati soggetti alla diffusione di acqua in forma liquida o vapore, a determinate condizioni ambientali e per svariati intervalli temporali. Grazie a l’utilizzo di due camere climatiche il condizionamento è stato realizzato in modo uniforme a precisi valori temperatura e umidità mantenuti stabili. I materiali analizzati: un bitume soft, uno hard, ed infine uno modificato con l’aggiunta di polimeri. Il dispositivo FTIR-ATR è stato utilizzato per la caratterizzazione chimica, mentre il comportamento reologico è stato analizzato tramite test eseguiti con il DSR. Le avanzate tecnologie presenti nel laboratorio della TU Delft hanno consentito di ottenere notevoli risultati. L’analisi è stata condotta con l’obiettivo di evidenziare i diversi cambiamenti indotti dalla diffusione di acqua liquida o vapore e per analizzare l’influenza della temperatura, del tipo del bitume e dell’incremento del tempo di condizionamento. Una analisi analoga è stata condotta parallelamente, con lo scopo di investigare la correlazione tra il processo di invecchiamento e la diffusione di umidità. Infine, la simulazione agli elementi finiti è stata sviluppata tramite il software CAPA-3D per analizzare il comportamento del bitume in periodi più estesi di diffusione di umidità. Inoltre, il comportamento dei bitumi è stato studiato anche in presenza di particelle di riempitivo. Particelle granitiche e calcaree sono state aggiunte ai bitumi in differenti percentuali.
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Davies, E. "Rheological and engineering properties of asphaltic paving materials with polymer modified and conventional binders." Thesis, University of Liverpool, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240489.

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Themeli, Andrea. "Etude du potentiel d'emploi des bitumes naturels dans la production des liants bitumineux durs et des enrobés à module élevé." Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAD020.

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Le but de ce travail est d’étudier le potentiel d’un bitume naturel (BN) extrait en Albanie pour la production des bitumes durs (BD) et des enrobés à module élevé (EME). Pour la production des BD, différentes techniques de raffinage du pétrole existent. Néanmoins, avec certains bruts pétroliers il est impossible de les fabriquer. De plus, les BD de raffinerie comportent souvent des défauts qui limitent leurs applications. Ces raisons, couplées à des questions d’approvisionnement, conduisent à chercher des méthodes de substitution. Dans ce contexte, il est intéressant d’utiliser des BN. Cette étude a montré que le BN d’Albanie donne des BD et des EME en conformité avec la Normalisation Européenne, résistants au vieillissement et performants aux basses températures. Un dosage adéquat permet de formuler des matériaux d’une dureté désirée en réponse des exigences techniques des applications routières visées tout en facilitant la gestion des stocks de bitumes dans les centrales d’enrobages
The aim of this thesis is to study the potential of a natural bitumen (NB) mined in Albania in the production of hard bitumens (HB) and that of high modulus asphalt concrete (HMAC). Various petroleum refining techniques are available for the production of HB. Nevertheless, this is impossible with some crude oils. In addition, HB from refineries often present shortcomings which limit their applications. These reasons, coupled with practical issues related to HB supply, motivate the research of alternative methods. In this industrial context it is interesting to use NB. This study has shown that the Albanian NB provides HB and HMAC in accordance with European Standards, resistant to aging and relatively performant at low temperatures. The proper dosage of this NB allows the formulation of materials of desired properties, in response to the technical requirements of the considered road applications, facilitating in this way the use of bitumen stocks in asphalt concrete production plants
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Yan, Zhoulin. "Interfacial behavior of de-asphalted bitumen." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0001/MQ40126.pdf.

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Portillo, Oscar. "Fracture mechanics of bitumen and asphalt mixes." Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608512.

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Hagner, Tobias. "Untersuchung und Bewertung von bitumenhaltigen Bindemitteln für Asphalt mittels Dynamischem Scher-Rheometer /." Braunschweig : Inst. für Straßenwesen, 2003. http://www.gbv.de/dms/bs/toc/372694772.pdf.

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Rahimzadeh, Behzad. "Linear and non-linear viscoelastic behaviour of binders and asphalts." Thesis, University of Nottingham, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246403.

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Edwards, Ylva. "Influence of waxes on bitumen and asphalt concrete mixture performance." Doctoral thesis, KTH, Väg- och banteknik, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-553.

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This doctoral thesis consists of a literature review, presented in two papers, and another six papers describing experimental studies of the influence of different kinds of wax and polyphosporic acid on bitumen and asphalt concrete mixture properties. The literature review should give an extensive description of the field of knowledge concerning wax in bitumen. Effects of wax in crude oil, bitumen and asphalt concrete as well as test methods for studying these effects are described. Theories behind possible mechanisms are also discussed, and commercial wax as additive to bitumen for different purposes included. The experimental parts comprise laboratory studies involving totally five 160/220 penetration base bitumens from different sources, two isolated bitumen waxes, five commercial waxes and one polyphosphoric acid. Asphalt concrete slabs, containing base or modified bitumen were prepared and tested. Binder properties were evaluated using different types of laboratory equipment, such as dynamic shear rheometer (DSR), bending beam rheometer (BBR), differential scanning calorimeter (DSC), force ductilometer, as well as equipment for determining conventional parameters like penetration, softening point, viscosity, and Fraass breaking point. Fourier Transform Infrared (FTIR) spectroscopy and Thin Layer Chromatography (TLC-FID) were used for chemical characterization. The binders were aged by means of the rolling thin film oven test (RTFOT) and pressure ageing vessel (PAV) in combination. Asphalt concrete properties were evaluated at low temperatures using the tensile strain restrained specimen test (TSRST) and creep test at -25°C. Dynamic creep testing was performed at 40°C, as well as complex modulus tests between 0 and 20°C. Binder test results indicated that the magnitude and type of effect on bitumen rheology depend on the bitumen itself, type of crystallizing fraction in the bitumen and/or type and amount of additive used. Bitumen composition was found to be of decisive importance. Adding polyethylene wax or polyphosphoric acid, especially to a non-waxy 160/220 penetration grade bitumen, showed no or positive effects on the rheological behaviour at low temperatures (decrease in stiffness) as well as medium and high temperatures (increase in complex modulus and decrease in phase angle). However, the corresponding positive effects could not be shown in dynamic creep testing (at 40°C) of asphalt concrete mixtures containing these modified binders. Adding FT-paraffin decreased the physical hardening index for all bitumens. Also polyethylene wax and montan wax showed this effect for some bitumens. Slack wax showed a large increasing effect on physical hardening, and polyphosphoric acid none or a minor negative effect. No correlation between physical hardening index (PHI) and wax content by DSC was found in this study, involving both natural bitumen wax and commercial wax. Addition of the commercial waxes used showed no or marginally positive influence on bitumen ageing properties for the bitumens and test conditions used. Comparing asphalt mixture test results to the corresponding binder test results, the effects on asphalt mixtures from adding commercial wax or polyphosphoric acid were less evident. Significant binder physical hardening by BBR could not be confirmed by TSRST.
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Geisler, Flavien. "Etude des mécanismes d'action des additifs de maniabilité aux interfaces des enrobés bitumineux tièdes." Thesis, Ecully, Ecole centrale de Lyon, 2015. http://www.theses.fr/2015ECDL0015.

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L'additivation chimique des bitumes est un des procédés employé industriellement pour produire des enrobés bitumineux tièdes. Bien que différents additifs commerciaux soient disponibles sur le marché, les mécanismes d'actions impliqués dans la réduction des températures de mise en œuvre demeurent relativement mal connus. Dans le cadre de cette thèse CIFRE TOTAL, trois approches complémentaires ont été étudiées afin d'avoir une meilleure compréhension de ses mécanismes. La particularité de notre démarche vient du fait que ces études ont été réalisées aux températures de mise en œuvre des enrobés bitumineux (90°C - 165°C). Dans un premier temps, une étude rhéologique indique qu'à ces températures, le bitume possède un comportement newtonien sur une large gamme de taux de cisaillement. Nous avons montré que la viscosité du bitume est peu sensible à l'ajout d'additifs mais qu'elle dépend essentiellement de la température. Nous suggérons que la viscosité volumique n'est pas adaptée pour comprendre les phénomènes mis en jeu. Nous proposons alors d'étudier le comportement rhéologique des bitumes en films minces (de quelques dizaines de micromètres). Dans un deuxième temps, nous avons employé une approche tribologique afin de mieux appréhender le comportement des systèmes liant/granulats. Des tests de frottement menés sur avec des matériaux modèles en présence de bitume révèlent qu'en régime de lubrification hydrodynamique, la réponse en frottement n'est pas sensible à l'additivation des bitumes mais à la température. En régime de lubrification limite, notre étude a montré que la réponse en frottement dépend de la température, des matériaux et de l'additivation des bitumes. Enfin, une approche interfaciale indique que les additifs modifient peu la tension superficielle du bitume et le mouillage des granulats dans l'air. En milieu aqueux, l'effet tensioactif de certains additifs est clairement mis en évidence par des essais de détermination de tension interfaciale et par des essais de mouillage. La combinaison de ces trois approches permet une meilleure compréhension des phénomènes se produisant aux niveaux des interfaces granulat/granulat et granulat/bitume
One way to produce Warm Mix Asphalt (WMA) consists in adding chemicals to bitumen. Although several! kinds of additives are available on the market the mechanisms of this technology remains still not well understood. This thesis realized within a partnership between TOTAL and the Laboratory of Tribology and Systems Dynamic is focus on three axes to get a better understanding of these mechanisms. One singularity of our approach is due to the fact that experiments were performed at industrial processing temperatures (90°C- 165°C). ln a first lime, a rheological study has shown that bitumen exhibits a Newtonian behaviour at mixing and compacting temperatures. Bitumen viscosity mainly depends on temperature but in not very affected by the chemical additivation. We suggest that the bulk rheology is not adapted to understand the phenomena which are involved and we propose to study the behaviour of thin films of few tens of microns instead. ln a second lime, a tribological approach was employed to better understand mechanisms involved in binder/aggregate systems. Friction tests were performed with model materials. Results are that the friction answer is not sensible to the presence of additives but ta temperature in hydrodynamic lubrication range. ln boundary lubrication range, the response is material-, temperature- and additive-dependant. Finally, results of an interfacial study have shown that the interfacial tension of bitumen and that the wettability of aggregates are not very sensitive ta additives when the experiments are performed in air. When performed in an aqueous medium, interfacial tension measurements and wettability tests clearly allow to reveal the surfactant behaviour of effect of some additives. The combination of the three approaches allow a better understanding of phenomena which are involved at bitumen/aggregates and aggregates/aggregates interfaces
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Clark, Brody Ross. "Investigation into the fatigue performance of multigrade bitumen asphalt blended with recycled asphalt pavement (RAP)." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/123559/1/Brody_Clark_Thesis.pdf.

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This thesis investigates the fatigue and stiffness properties of multigrade bitumen asphalt and the added effects of recycled asphalt pavements. Through vigorous four-point bending testing, this research highlighted the benefits multigrade bitumen and recycled asphalt has on the longevity of road pavements and the major environmental benefits. Future road pavement designers will be able to adopt these innovative materials and reduce required pavement thickness while utilising recycled materials.
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Books on the topic "Asphaltic bitumen"

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Wess, J. Asphalt (bitumen). Geneva: World Health Organization, 2004.

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2

Meyer, R. F. Definition and world resources of natural bitumens. Washington, D.C: U.S. G.P.O., 1990.

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3

Wilson, Gary V. Characteristics and resource evaluation of the asphalt and bitumen deposits of northern Alabama. Tuscaloosa, Ala. (420 Hackberry Lane, P.O. Box 0, Tuscaloosa, 35486-9780): Geological Survey of Alabama, 1987.

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4

Daines, M. E. Bitumen permittivity and surface texture in rolled asphalt. Crowthorne, Berks: Transport and Road Research Laboratory, Highways Group, Materials and Construction Group, 1991.

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Gesner, Abraham. Prospectus of Dr. Gesner's patent kerosene gas obtained from bitumen, asphaltum, or mineral pitch. New York: Trehern & Williamson, 1986.

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Carswell, J. The effect of EVA-modified bitumens on rolled asphalts containing different fine aggregates. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1987.

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Carswell, J. The effect of EVA-modified bitumens on rolled asphalts containing different fine aggregates. Crowthorne, Berks: Transport and Road Research Laboratory, Highways Group, Pavement Materials and Construction Division, 1987.

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Carswell, J. The effect of EVA-modified bitumens on rolled asphalts containing different fine aggregates. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1987.

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Specified gas emitters regulation: Quantification protocol for the substitution of bitumen binder in hot mix asphalt production and usage. [Edmonton]: Alberta Environment, 2009.

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Ancheyta, Jorge. Asphaltenes: Chemical transformation during hydroprocessing of heavy oils. Boca Raton: Taylor & Francis, 2009.

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Book chapters on the topic "Asphaltic bitumen"

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Gooch, Jan W. "Asphaltic Bitumens." In Encyclopedic Dictionary of Polymers, 50. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_834.

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Holleran, Glynn, Irina Holleran, and Douglas J. Wilson. "The Use of Automated Flocculation Titrimetry and SARA Analysis to Predict the Performance of Bituminous Binders in Asphaltic Hot Mix and Bitumen Emulsions." In Advancements on Sustainable Civil Infrastructures, 1–14. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-96241-2_1.

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Themeli, Andrea, Emmanuel Chailleux, Fabienne Farcas, Cyrille Chazallon, Bernard Migault, and Gilles Didelet. "Ageing Performances of Asphaltite Modified Bitumens; Comparisons with Equivalent Petroleum Bitumens." In RILEM Bookseries, 89–101. Dordrecht: Springer Netherlands, 2015. http://dx.doi.org/10.1007/978-94-017-7342-3_8.

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Gunka, Volodymyr, Iurii Sidun, Serhiy Solodkyy, and Nataliya Vytrykush. "Hot Asphalt Concrete with Application of Formaldehyde Modified Bitumen." In Proceedings of CEE 2019, 111–18. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-27011-7_14.

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Lay, Maxwell, Metcalf John, and Sharp Kieran. "The essential paving properties of bitumen, asphalt and cement." In Paving Our Ways, 99–103. First edition. | Boca Raton : CRC Press, 2021.: CRC Press, 2020. http://dx.doi.org/10.1201/9781003056300-11.

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Plug, C. P., A. H. de Bondt, F. R. Bijleveld, and G. van Uden. "Polymer modified bitumen for runways containing 60% recycled asphalt." In Eleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields, Volume 3, 418–25. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003222910-43.

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Borinelli, J. B., J. Blom, G. Jacobs, D. Hernando, W. Van den Bergh, and C. Vuye. "Microstructural and rheological analysis of crumb rubber modified bitumen." In Green and Intelligent Technologies for Sustainable and Smart Asphalt Pavements, 599–604. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003251125-96.

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Wang, J., F. Xiao*, and Q. Xiang. "Rheological and chemical properties of bitumen during hot in-place recycling." In Green and Intelligent Technologies for Sustainable and Smart Asphalt Pavements, 155–61. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003251125-26.

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Artamendi, Ignacio, Bob Allen, and Paul Phillips. "Low Temperature Cracking Properties of Asphalt Mixtures Containing Rubber Bitumen Pellets." In RILEM Bookseries, 171–76. Dordrecht: Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-024-0867-6_24.

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Nguyen, Quang Tuan, Thi Thanh Nhan Hoang, Xuan Cay Bui, Van Cham La, Thi Kim Dang Tran, Quang Phuc Nguyen, and Nhu Hai Nguyen. "Mechanical Properties of Bitumen and Asphalt Mixture Modified with Polymer Additives." In RILEM Bookseries, 1321–26. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-46455-4_168.

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Conference papers on the topic "Asphaltic bitumen"

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Tušar, Marjan, Lidija Ržek, and Mojca Ravnikar Turk. "Quality checking of Polymer modified bitumens in Slovenia." In 6th International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2021. http://dx.doi.org/10.5592/co/cetra.2020.1086.

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For many years the properties of bitumen have been determined based on mechanical tests as needle penetration, Ring&Ball and Fraass fracture temperature. For elastomer (styrene-butadiene-styrene) polymer modified bitumens these tests are not sufficient to show the important differences in bitumens. Elastic recovery and cohesion provide better insight, but rheological properties cannot be adequately described with conventional test. The requirements of the polymer modified bitumens (PmB) in Europe were defined in EN 14023 in 2010 [1]. Since then several new tests were introduced in the research field and their procedures improved. In the European Standards Committee (CEN) TC 336, there is ongoing work to develop performance related specifications. New laboratory test methods from American standards were adapted and transformed into EN standards (bitumen laboratory aging methods and rheological tests). These test methods are not yet employed in the current PmB European standard, however, the draft prEN 14023, April 2020 [2] suggests these new tests. In the recent years at ZAG Laboratory for asphalts and bitumen-based products long-term aging of bitumen by pressure aging vessel (PAV) and rheological tests were introduced. Traditional bitumen test methods are performed together with new rheological tests e.g. Dynamic Shear Rheometer (DSR) testing, to characterize complex modulus and phase angle, and Multiple Stress Creep Recovery Test (MSCRT) in order to develop a preliminary data base on PmB’s, which are frequently used in Slovenia. The paper presents the current requirements for PmB’s in Slovenia and test results on PmB 45/80-65, original, laboratory aged and extracted from produced asphalt mixtures.
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Popova, I. D., and K. V. Dolzhenko. "INFLUENCE OF THE ASPHALT-RESINOUS COMPONENT FROM BITUMEN ON THE PYROLYSIS DATA IN TERRIGENOUS ORGANIC MATTER OF THE UPPER PALEOZOIC COMPLEX OF THE VILYUI HEMISYNECLISE." In All-Russian Youth Scientific Conference with the Participation of Foreign Scientists Trofimuk Readings - 2021. Novosibirsk State University, 2021. http://dx.doi.org/10.25205/978-5-4437-1251-2-113-116.

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This work is devoted to the study of the asphalt-resinous component (ARC) from bitumens influence on the terrestrial organic matter (OM) residual generation potential (HI). Samples of Permian rocks were analyzed in that study. They were obtained from well Sred-nevilyuiskaya-27 (Vilyui hemisyneclise, Eastern Siberia) in the depth range of 3370–4370 m. The pyrolysis peak S2 was divided into two parts along the temperature boundaries: S2 '– 300–400 °C (asphalt-resinous component) and the main S2 peak – 400–650 °C (kerogen). The con-tribution of ARC to the values of the hydrogen index (HI) was calculated, and the influence of catagenesis on the ratio of the S2 'and S2 peaks was traced. An overestimation of the HI index of kerogen due to heterogeneous compounds of bitumen was established up to 20 % at the late stages of mesocatagenesis.
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Šernas, Ovidijus, Donatas Čygas, Audrius Vaitkus, and Vytautė Gumauskaitė. "The Influence of Crumb Rubber on Modified Bitumen Properties." In Environmental Engineering. VGTU Technika, 2017. http://dx.doi.org/10.3846/enviro.2017.147.

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Rubber derived from grinding of recycled cars and trucks tyres may be successfully used as a bitumen modifier. Number of researches reported sufficient characteristics of rubber modified asphalt binders or modified asphalt mixes in terms of improved permanent deformation and fatigue cracking. The behavior of crumb rubber asphalt binders depends on several factors, such as modification method, rubber content and size, modification temperature, mixing speed and time applied during the digestion process. The aim of this study is to evaluate the effect of crumb rubber amount and type on modified bitumen low and high temperature properties. This paper presents results of unmodified bitumen, crumb rubber crumb rubber and polymer modified bitumen. Low and high temperature properties have been evaluated using bending beam rheometer and dynamic shear rheometer. Moreover, softening point and viscosity tests have been performed. The study results revealed that crumb rubber modified bitumen performed better than pure bitumen and similarly to polymer modified bitumen.
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Pugin, K. G. "Change in Properties of Bitumen Used for Road Construction in Bitumineral Mixtures." In Modern Trends in Manufacturing Technologies and Equipment. Materials Research Forum LLC, 2022. http://dx.doi.org/10.21741/9781644901755-32.

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Abstract. Premature destruction of asphalt concrete can be caused by the aging of bitumen, which is associated with a change in the physical and chemical properties of bitumen. The article shows that in most cases, the improvement of the characteristics of asphalt concrete is achieved through the introduction of additives that affect the basic properties of the bituminous binder, such as penetration, softening temperature, viscosity. The influence of the chemical composition of the mineral filler on the rate of bitumen aging has been experimentally proved. The obtained research data show that the increase in the rate of aging of bitumen is influenced by the compounds of silicon and aluminum. On the other hand, metals such as iron and titanium contribute to the preservation of the initial plasticity of bitumen, and the accumulation of asphaltenes in the structure of the bitumen-mineral mixture slows down.
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Somé, Sâannibè-Ciryle, Vincent Gaudefroy, and Didier Delaunay. "Use of Inverse Method for Bonding Quality Assessment Between Bitumen and Aggregates Under Asphalt Mixes Manufacturing Conditions." In ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/esda2012-82361.

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In roads building, classical asphalt mix manufacturing commonly requires the heating (at 160°C) and the complete drying of aggregates. The induced energy cost has opened the way to develop alternatives processes and materials with low energy/carbon materials such as Warm Mix Asphalt (WMA). In warm mixes processes, aggregates manufacturing temperatures are different and lower than the Hot Mix ones. However, manufacturing temperature reduction can locally lead to poor bonding between bitumen and aggregate during the mixing step, due to the bitumen viscosity increasing, although bonding quality measurement remained a challenge. The aim of our study was to presents two thermal inverse methods for bonding quality assessment. These methods are based on Thermal Contact Resistance (TCR) assessment between bitumen and aggregate, during asphalt mix manufacturing. The experimental test principle consisted of heating both bitumen and cylindrical aggregate to their manufacturing temperatures (over 100°C) and to put them into contact thanks to a special experimental device. According to initial samples temperatures, heat transfer occurs from the bitumen to the aggregate. Two variants of the sequential Beck’s method were used to solve the inverse heat conduction problem. The first one consisted of determining the TCR from heat flux and temperatures and the second one consisted of identifying directly the TCR. The TCR values were interpreted as bonding quality criteria. Results showed low sensitivity to temperature measurement noise in the second variant of the inverse method. Moreover our study showed that bonding quality depends on bitumen and aggregate temperatures. The higher the component’s temperatures, the lower the TCR values and better is the bonding quality.
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Panasenkiene, Migle, Audrius Vaitkus, and Viktoras Masevičius. "The effect of bitumen ageing to fractional composition." In 6th International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2021. http://dx.doi.org/10.5592/co/cetra.2020.1214.

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Bitumen is manufactured from different crude oil sources also by various refining technologies, therefore, the impact of ageing is different. Bitumen is a complex chemical mixture consisting of a large number and diversity of organic compounds, mostly hydrocarbons, and varying in molecular mass, polarity and aromaticity. Various polar and non-polar fragments in bitumen interacting in-between form the certain structures which changes bitumen behaviour. Since bitumen is assigned as a colloidal system, consisting of high molecular weight asphaltene micelles dispersed in a lower molecular weight maltenes (saturates, aromatics, resins), the bitumen structure changes over time. Since ageing is one of the main factors effecting bitumen properties and asphalt pavement performance, it is essential to understand how the fractional composition of bitumen is affected by the long-term ageing simulation in the laboratory. The main purpose of this article is to analyse bitumen ageing process and influence to bitumen fractional composition (saturates, aromatics, resins, and asphaltenes), i.e. to show what happens to the bitumen fractional composition and colloidal stability when bitumen reaches a critical ageing point. The saturates, aromatics, resins, and asphaltenes were determined with the Thin Layer Chromatography with flame-ionisation detector (TLC/FID), the IATROSCAN MK-6s.
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Tarta, Ciprian Rares, Nicolae Ciont, Mihai Iliescu, and Gavril Hoda. "Comparative study on using thermoplastic polymers to improve asphalt mixtures characteristics." In 6th International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2021. http://dx.doi.org/10.5592/co/cetra.2020.1170.

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Asphalt mixtures are composite building materials consisting of a mineral skeleton mixed with a bituminous binder, following a recipe which may also include fibres and/or polymers. The natural aggregates sustain the mixture structure, but adequate bitumen behaviour under various temperature and mechanically-induced stresses is also essential for the structural durability. Much research effort was directed towards improving the asphalt mixtures’ resistance to permanent deformation, implying an increase in mixture stiffness. At the same time, the mixture must exhibit enough low temperature cracking resistance. Six reference asphalt mixture samples were prepared and tested: mixtures M1 and M2 for base and binder courses respectively, as well as four mixtures for wearing courses (two asphalt concrete - AC1 and AC2, a stabilised mixture SMA containing fibres, and a porous mixture - PM). A 50/70 penetration grade bitumen was used to prepare all mixtures. In some cases, the obtained results did not meet the standard requirements. Bitumen or mixture modification is commonly performed by adding thermoplastic or elastomeric polymers, to improve the asphalt mixture behaviour. In this study, the effects of four thermoplastic polymers on the stiffness modulus, dynamic creep and fatigue resistance were studied. All tested polymers were introduced as grains during mixture preparation. Polymer addition led to a 31 % to 104 % increase in mixture stiffness modulus. A 220 % average increase in fatigue resistance was observed for mixtures M1 and M2. For the wearing course mixtures, creep resistance is expressed through a 99 % reduction in deformation speed and a 50 % to 80 % reduction in rut depth. The obtained results met the standard requirements. Using grain polymers is currently an effective alternative to polymer-modified bitumen, because of several technological and economical advantages. Polymer quality is essential to obtain adequate mixture characteristics.
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Savichev, A. O. "IMPROVING THE TECHNOLOGY OF PRODUCTION OF WARM ASPHALT CONCRETE MIXES USING FOAMED BITUMEN, REDUCING THE HARMFUL IMPACT ON THE ENVIRONMENT." In Всероссийская научная конференция, посвященная памяти доктора технических наук, профессора Александра Дмитриевича Потапова. Федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский Московский государственный строительный университет" (НИУ МГСУ), 2021. http://dx.doi.org/10.22227/978-5-7264-2875-8.2021.135-140.

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The introduction of foamed bitumen in the mixing process allows you to lower the temperature of asphalt, which saves energy and reduces the harmful impact on the environment, increasing environmental safety at the enterprise, while improving the properties of asphalt concrete.
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Vaitkus, Audrius, Judita Gražulytė, Lina Juknevičiūtė-Žilinskienė, and Vitalijus Andrejevas. "Review of Lithuanian Experience in Asphalt Pavements Cold Recycling." In Environmental Engineering. VGTU Technika, 2017. http://dx.doi.org/10.3846/enviro.2017.153.

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One of the key goals in the EU White Paper is to reduce carbon emissions in transport by 60% by 2050. Consequently, during the past years an effect on the environment became a decisive factor in selecting materials and technologies for road construction and rehabilitation. Cold recycling is a reasonable solution in asphalt pavement rehabilitation because it is economical and old asphalt pavements can be reused. This technology differs from others by mixing temperature. Besides, cold recycling does not require additional heating. These benefits result in wide application of cold recycling around the world. In Lithuania, cold recycling has been used for more than 15 years. Both technologies, i.e. cold in-plant recycling and cold in-place recycling, were used. In both technologies reclaimed asphalt pavement (RAP) is bound with bituminous binders (foamed bitumen or bitumen emulsion), hydraulic binders (cement) or a combination of bituminous and hydraulic binders depending on the base course specifications. This paper focuses on the Lithuanian experience in cold recycling of asphalt pavements using different types of cold recycling and binders.
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Mazurek, Grzegorz. "The Viscoelastic Characteristics of the Asphalt Concrete Modified with Different Synthetic Waxes Using a Modified Huet- Sayegh Model." In Environmental Engineering. VGTU Technika, 2017. http://dx.doi.org/10.3846/enviro.2017.141.

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The article presents the results of dynamic modulus tests carried on the asphalt concrete (AC16W). The sinusoidal load was applied to the samples in accordance with DTC-CY method. The neat bituminous binder (penetration grade 35/50) was modified by means two synthetic waxes, coming from the Fischer-Tropsch raction, with various molecular weights and softening point temperature results (hard and softer). The relaxation phenomenon in terms of changes in complex modulus and phase angle was evaluated using the modified Huet-Sayegh (2S2P1D). Estimated model parameters pointed out that the addition of the synthetic wax with the high (hard wax) and the low (softer wax) molecular weight raised the stiffness of the bituminous binder in relation to the reference bitumen 35/50. The application of the modified Huet-Sayegh model showed that the presence of the synthetic wax in the bitumen significantly affected the stiffness modulus of considered asphalt concretes. Basing analysis on Cole-Cole diagram it was found significant differences in the viscoelastic behaviour between the reference asphalt concrete and the asphalt concretes with synthetic waxes. In contrast, there were no significant differences between viscoelastic properties of tested asphalt concretes modified, used in the experiment, synthetic waxes. Furthermore, the sensitivity to the loading time of asphalt concretes containing both synthetic waxes was marginal.
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Reports on the topic "Asphaltic bitumen"

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Moghtadernejad, Sara, Ehsan Barjasteh, Ren Nagata, and Haia Malabeh. Enhancement of Asphalt Performance by Graphene-Based Bitumen Nanocomposites. Mineta Transportation Institute, June 2021. http://dx.doi.org/10.31979/mti.2021.1918.

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As the State of California continues to grow, demand for enhanced infrastructure such as roadways and highways escalates. In view of the current average highway lifespan of 15–20 years, the improvement of asphalt binders leads to material sustainability by decreasing required maintenance and increasing the lifespan of roadways. In the present investigation, enhancement of asphalt binder properties was achieved by different methods of mixing varying compositions of graphene nanoparticles with an SBS polymer and asphalt binder. Additionally, experimental evaluation and comparison of the rheological and mechanical properties of each specimen is presented. Graphene nanoparticles have attracted great curiosity in the field of highway materials due to their incredible rigidity, even in small quantities. Addition of as little as 1.0%nanoparticles in combination with polymers in an asphalt binder is expected to increase the rigidity of the material while also maintaining the beneficial polymer characteristics. Evaluation of the effect of the mixing design established that the methods for application of graphene to the polymer-modified asphalt binder are critical in the improvement of a roadway, resulting in resistance to premature aging and strain from constant road operation.
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Robertson, R. E., P. M. Harnsberger, and J. M. Wolf. Evaluation of oil shale bitumen as a pavement asphalt additive to reduce moisture damage susceptibility. Office of Scientific and Technical Information (OSTI), January 1991. http://dx.doi.org/10.2172/6125739.

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Netid, Mihai. APPARATUS FOR THE HOMOGENIZATION OF HEAVY OIL OR RESIN OR BITUMEN BEFORE THE PREPARATION OF THE ASPHALT MIX. Intellectual Archive, March 2019. http://dx.doi.org/10.32370/iaj.2057.

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Netzel, D. A., and P. T. Coover. An NMR (nuclear magnetic resonance) investigation of the chemical association and molecular dynamics in asphalt ridge tar sand ore and bitumen. Office of Scientific and Technical Information (OSTI), September 1987. http://dx.doi.org/10.2172/5588596.

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Netid, Mihai. APPARATUS, SYSTEM, METHOD AND ASSOCIATED TECHNOLOGIES OF IN-LINE VORTEX MIXING OF MINI - GRANULES WITH HOMOGENIZED HEAVY OIL OR RESIN OR BITUMEN, MAINLY IN THE PREPARATION OF THE ASPHALT MIX. Intellectual Archive, March 2019. http://dx.doi.org/10.32370/iaj.2070.

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