Log in

Relevant bibliographies by topics / Modified bitumen / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Modified bitumen.

Dissertations / Theses on the topic 'Modified bitumen'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 49 dissertations / theses for your research on the topic 'Modified bitumen.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Nare, Keith Dumisani. "Formulation development and thermorheological properties of crumb rubber/eva modified bitumen." Thesis, Nelson Mandela Metropolitan University, 2016. http://hdl.handle.net/10948/11974.

Full text

Abstract:

The study deals with the formulation development and thermorheological properties of crumb rubber/ethylene vinyl acetate (EVA) modified bitumen with the aim of optimizing the amount of crumb rubber and EVA loadings in bitumen based on thermorheological parameters complex shear modulus, phase angle and rutting parameter. In the modified binders EVA offers plastomer properties whereas the crumb rubber confers elasticity to the bitumen. 13.75% crumb rubber and 2.5% EVA loadings based on aging indices gave the best optimized mixture. The thermorheological behaviour of the best optimized mixture wa

APA, Harvard, Vancouver, ISO, and other styles

2

Zhu, Jiqing. "Towards a Viscoelastic Model for Phase Separation in Polymer Modified Bitumen." Licentiate thesis, KTH, Bro- och stålbyggnad, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-163540.

Full text

Abstract:

In this thesis, a review is given on the most popular polymers used today for polymer modification of bitumen. Furthermore, the development of a model for phase separation in polymer modified bitumen (PMB) is proposed, that will enable a better control and understanding of PMB phase behaviour, allowing thus to enhanced long-term performance. PMB is hereby considered as a blend and focus is placed on its structure, its equilibrium thermodynamics and its phase separation dynamics. The effects of dynamic asymmetry on phase separation in PMB are analysed with related theories and some image data.

APA, Harvard, Vancouver, ISO, and other styles

3

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Sambi, Inderjit Singh. "Hydrotreatment of Athabasca bitumen derived heavy gas oil over modified zeolite support catalyst." Thesis, University of Ottawa (Canada), 1986. http://hdl.handle.net/10393/5367.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Zhu, Jiqing. "Storage Stability and Phase Separation Behaviour of Polymer-Modified Bitumen : Characterization and Modelling." Doctoral thesis, KTH, Bro- och stålbyggnad, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-195089.

Full text

Abstract:

Polymer-modified bitumen (PMB) is a high-performance material for road construction and maintenance. But its storage stability and phase separation behaviour are still not sufficiently understood and need to be studied toward a more successful and sustainable application of PMB. In this thesis, the equilibrium thermodynamics and phase separation dynamics of PMB are investigated with the aim at a fundamental understanding on PMB storage stability and phase separation behaviour. The development of polymer modifiers for paving bitumen is reviewed. The phase separation process in unstable PMBs is

APA, Harvard, Vancouver, ISO, and other styles

6

Milne, Terence Ian. "Towards a performance related seal design method for Bitumen and modified road seal binders." Thesis, Stellenbosch : University of Stellenbosch, 2004. http://hdl.handle.net/10019.1/856.

Full text

Abstract:

Thesis(PhD (Civil Engineering))-- University of Stellenbosch, 2004.<br>ENGLISH ABSTRACT: Bitumen based road surfacing seals and asphalt wearing courses have been used by society's Engineers "to counter the damage to the existing unsurfaced roadways by the newly developed automobile with its rubber driving wheels" since the early 1900's. Early experiments were conducted with both tar and bitumen to find a suitable material to alleviate the situation, and ongoing research has been carried out through the past century and into the new millennium, throughout the world, examining improvements, fro

APA, Harvard, Vancouver, ISO, and other styles

7

Ali, Mahdi. "Study of the bitumen aging effects on the rheological properties and fatigue behavior." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/16255/.

Full text

Abstract:

A study of bitumen aging effects on the rheological properties and fatigue behavior is carried out on five polymer modified bitumen provided by an oil company. Dynamic Shear Rheometer (DSR), is used to perform advanced experimental investigation. It allows practicing frequency sweep tests, fatigue tests and time sweep tests. Polymer modified bitumen with different percentage of SBS with or without the presence of crumb rubber are tested before and after short and long aging processes. Master curves were generated based on frequency sweep tests data, they are studied, and a comparison was cond

APA, Harvard, Vancouver, ISO, and other styles

8

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

9

Демчук, Юрій Ярославович. "Бітуми, модифіковані смолами, одержаними з фенольної фракції кам’яновугільної смоли". Diss., Національний університет "Львівська політехніка", 2021. https://ena.lpnu.ua/handle/ntb/56146.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Horáček, Daniel. "Inovativní asfaltové směsi pro netuhé vozovky s použitím R-materiálu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409809.

Full text

Abstract:

The diploma thesis is focused on the design and production of two innovative asphalt mixtures of the VMT 22 type into the base asphalt course. The newly produced blends contain modified binders, such as polymer modified bitumen (PMB) and Crumb rubber modified bitumen (CRMB). The theoretical part of the thesis describes the current state of the use of Reclaimed asphalt pavement in the base asphalt course. Furthermore, there are described types of asphalt mixtures for the base asphalt course are used in the Czech Republic and other countries. The conclusion of the theoretical part is devoted to

APA, Harvard, Vancouver, ISO, and other styles

11

Sychra, Martin. "Vliv obsahu pojiva na vlastnosti asfaltové směsi s CRmB." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240223.

Full text

Abstract:

The asphalt mixture BBTM 5 A with crumb rubber modified bitumen (CRmB) is designed and produced in the diploma thesis. The influence of CRmB content on low temperature properties, stiffness and fatigue of asphalt mixture BBTM 5 A is determined. The influence of asphalt mixture ageing simulation on change of low temperature properties is also evaluated.

APA, Harvard, Vancouver, ISO, and other styles

12

Zavřel, Tomáš. "Posouzení nízkohlučného asfaltového koberce mastixového s CRmB." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225494.

Full text

Abstract:

The aim of diploma thesis is to design mixture SMA LA 8 with crumb rubber modified bitumen (9,9 %) and a modifier additive TecRoad (22 %) and the test of water sensitivity, the resistance to permanent deformation and to frost cracking, the determination of the stiffness and fatigue characteristics. Test methods are described and evaluated.

APA, Harvard, Vancouver, ISO, and other styles

13

Puda, Adam. "Porovnání švédského a amerického konceptu návrhu směsí s CRmB." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227484.

Full text

Abstract:

This master's theseis deals with comparison of two design concepts for producting asphalt mixture with CRmB. These design concepts are from Sweden and USA. The theoretical part sets parameters for design of asphalt mixture and chracteristic tests. In the practical part test speciements of design asphatl mixture undergo performace tests that simulate climate and traffic load. Results are compared to mathematical model used in program LayEps.

APA, Harvard, Vancouver, ISO, and other styles

14

Dhondt, Axel. "Impacts du procédé de fabrication sur les propriétés thermorhéologiques de liants routiers purs et modifiés aux polymères." Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Lille Douai, 2018. http://www.theses.fr/2018MTLD0010.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Hotař, Petr. "Reologické vlastnosti asfaltových pojiv." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226951.

Full text

Abstract:

The comparison of rheological properties (complex shear modulus and phase angle and dynamic viscosity) of four paving bitumens and two polymer modified bitumens is performed in this diploma thesis. Furthermore, the empirical tests (needle penetration and softening point) were determined on these binders. Effect of asphalt binders aging was modeled using RTFOT test and modified RTFOT test (3 x RTFOT).

APA, Harvard, Vancouver, ISO, and other styles

16

Stromecký, Roman. "Asfaltové směsi s vyšší životností za použití R-materiálu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392267.

Full text

Abstract:

This diploma thesis deals with a project of asphalt mixtures with high stiffness modulus using R-material. The theoretical part describes the characteristics of these mixtures in the Czech Republic and in Switzerland. Further this part deals with the use of R-material in the Czech Republic and chosen other countries of the world, it also deals with the ways of recycling roads. The theoretical part also deals with the testing methods used. In the practical part two new asphalt mixtures of the high stiffness modulus type with the addition of 25 % R-material are suggested. As a base for these two

APA, Harvard, Vancouver, ISO, and other styles

17

MIGLIETTA, FABRIZIO. "Self-healing of bituminous binders: a methodological framework from experimental testing to advanced modeling." Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2942112.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Dašek, Ondřej. "Uplatnění pryžového granulátu v asfaltových pojivech a hutněných asfaltových směsích." Doctoral thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-233809.

Full text

Abstract:

Presented dissertation thesis is focused on the possibility of using the crumb rubber from waste tires for modification of paving grade bitumen. The resulting asphalt rubber can be used as an alternative to polymer modified bitumen in compacted bituminous mixtures. The theoretical part describes the rheological properties of asphalt binders and the history and today state of the art in the world and in the Czech Republic. The practical part of the work contains a description of the properties of chosen crumb rubbers and produced asphalt rubbers focused on their rheological properties and on ch

APA, Harvard, Vancouver, ISO, and other styles

19

Durand, Anne. "Relations entre la composition des bitumes et leurs propriétés physico-chimiques. Application à la formulation des liants modifiés bitume-EVA." Rouen, 1997. http://www.theses.fr/1997ROUES082.

Full text

Abstract:

Les performances en application routière d'un enrobé dépendent des interactions entre ses différents constituants. La démarche expérimentale a consisté tout d'abord à étudier le bitume pur, sans l'ajout d'aucun additif, pour essayer d'évaluer l'importance de la composition du bitume, déterminée par l'origine du brut, sur les caractéristiques physico-mécaniques du bitume. Dans un second temps, l'étude de mélanges binaires : bitume-polymère ou bitume-filler a été réalisée pour évaluer l'influence des différents paramètres sur les propriétés du mélange en fonction des proportions des différents c

APA, Harvard, Vancouver, ISO, and other styles

20

Airey, Gordon Dan. "Rheological characteristics of polymer modified and aged bitumens." Thesis, University of Nottingham, 1997. http://eprints.nottingham.ac.uk/13431/.

Full text

Abstract:

The demands on asphalt pavements, as a result of the growth in traffic volumes, traffic loads and tyre contact pressures, has resulted in an increased interest in the use of modified bitumens, particularly over the last ten years. Of the various types of modified and specialised binders that are available worldwide, polymer modified bitumens (PMB’s) have tended to be the most popular. Polymer modification significantly alters the rheological characteristics of the binder, thereby requiring the use of fundamental rheological testing methods rather than empirical methods, to provide an indicatio

APA, Harvard, Vancouver, ISO, and other styles

21

Simkovič, Lukáš. "Využití asfaltových směsí typu RBL." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372063.

Full text

Abstract:

The aim of this diploma thesis is theoretical knowledge of the problems rich bottom layer and practical part of comparison of three asphalt mixtures for base layers using common road bitumen and modified rubber granulate. Selected functional laboratory tests (low temperature, fatigue resistance, bulk density) and stiffnes modules are performed on these mixtures and the results are compared to each other.

APA, Harvard, Vancouver, ISO, and other styles

22

Coufalíková, Iva. "Použití R-materiálu do asfaltových směsí typu asfaltový koberec mastixový." Doctoral thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-408020.

Full text

Abstract:

The dissertation deals with the possibilities of adding recycled asphalt pavement (RAP) to the stone mastic asphalt (SMA), which is increasingly being promoted due to its good resistance to permanent deformations and high traffic load. Thanks to the use of high-quality input materials in production, this is a valuable material source. The theoretical part describes composition of SMA mixture and problems of pavement recycling. The practical part deals with SMA 11S laboratory designs with RAP ratio of 0 to 50%. Based on these suggestions, a trial section with 17 variants was placed, which varie

APA, Harvard, Vancouver, ISO, and other styles

23

Dostál, Filip. "Vliv druhu a dávky polymeru na vlastnosti modifikovaných pojiv." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409806.

Full text

Abstract:

The diploma thesis is focused on polymer modified binders with different polymer doses. The theoretical part describes the history of the use of bitumen, the extraction of bitumen from oil and behavious of the polymer type SBS/SB, which is used in the diploma thesis on modified binders. Further, the theoretical part describes the empirical and functional tests of bitumen binders. In the practical part the results of indidual tests are presented and compared with the standard ČSN 65 7222-1. At the end of the diploma thesis are summarized results of work and evaluation of binders with the best a

APA, Harvard, Vancouver, ISO, and other styles

24

Lalanne‎, Florence. "Bitumes pétroliers modifiés polymères comme nouveaux liants routiers." Bordeaux 1, 1985. http://www.theses.fr/1985BOR10553.

Full text

Abstract:

Cet ouvrage comporte quatre chapitres concernant les bitumes petroliers modifies polymeres comme nouveaux liants routiers. Dans le premier chapitre nous positionnons l'etude en analysant la bibliographie et en explicitant le choix des polyurethannes comme polymeres modifiant le bitume. La deuxieme partie est consacree a l'elaboration de composes bitume-polyurethannes acryles, reticulant in situ avec des peroxydes. Dans le chapitre iii, nous etudions la faisabilite d'une reaction polyol isocyanate en presence de bitume a basse temperature. Puis, nous analysons la comptabilite de plusieurs polyo

APA, Harvard, Vancouver, ISO, and other styles

25

Lalanne, Florence. "Bitumes pétroliers modifiés polymères comme nouveaux liants routiers." Grenoble : ANRT, 1985. http://catalogue.bnf.fr/ark:/12148/cb375948723.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Zábranský, Ivo. "Vlastnosti nízkoteplotních polymerem modifikovaných asfaltů." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392123.

Full text

Abstract:

The Diploma thesis is focus on polymer modified bitumen for warm mix asphalt. The theoretical part of the thesis describes additives which influence the properties of bitumen for their use and reduction of production and service temperatures. Further, the theoretical part describes the conclusions from the researches. This part also describes empirical and functional tests of bituminous binders. The practical part presents the results of individual tests. Tests were performed on samples of non-aged, aged by RTFOT and RTFOT + PAV methods. The results of the work and the assessment of the suitab

APA, Harvard, Vancouver, ISO, and other styles

27

Dhondt, Axel. "Impacts du procédé de fabrication sur les propriétés thermorhéologiques de liants routiers purs et modifiés aux polymères." Thesis, Ecole nationale supérieure Mines-Télécom Lille Douai, 2018. http://www.theses.fr/2018MTLD0010.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Musil, Vladimír. "Relaxace smykového napětí asfaltových pojiv v DSR." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227690.

Full text

Abstract:

The thesis describes the relaxation properties of bituminous binders determined in dynamic shear rheometer (DSR). Paving bitumen, polymer modified bitumen (PMB) and crumb rubber modified bitumen (CRmB) were chosen for comparison. In order to describe the effects of ageing on asphalt binders relaxation properties, the laboratory simulation of ageing using RTFOT and 3xRTFOT method was performed. For each binder were simultaneously conducted tests of needle penetration, softening point and elastic recovery. Selected bitumens were used for the production of asphalt mixtures. The low-temperature pr

APA, Harvard, Vancouver, ISO, and other styles

29

Šefránková, Radka. "Využití fluxačních přísad pro úpravu vlastností asfaltových pojiv." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409828.

Full text

Abstract:

The subject of the thesis is to describe the effect of fluxing additives on the behaviour of asphalt binders. Emphasis will be placed on changes in rheological properties of asphalt binders at intermediate temperatures, stability during aging and influence of fluxing agents on their low-temperature properties. Theoretical part will deal with the principle of asphalt binders aging and it will summarize knowledge about fluxing additives. Further, empirical and functional tests will be described in order to evaluate asphalt binders. In the practical part, all laboratory tests will be evaluated an

APA, Harvard, Vancouver, ISO, and other styles

30

Lamontagne, Jérôme. "Vieillissement des bitumes modifiés polymères à usage routier par simulation et techniques spectroscopiques." Aix-Marseille 3, 2002. http://www.theses.fr/2002AIX30002.

Full text

Abstract:

Les bitumes routiers subissent lors de leur vie sur la chaussée, un vieillissement entraînant une perte des propriétés des enrobés. Pour améliorer ces performances un ajout de polymère est nécessaire. Les Bitumes modifiés par des Polymères (BmP) sont des matériaux composites dont la structure dépend à la fois de la nature du polymère, de sa concentration, de la composition chimique du bitume et du procédé de fabrication. Les techniques d'analyses microspectrométriques s'avèrent indispensables pour permettre de caractériser chimiquement les phases des BmP. Pour suivre en continu leur vieillisse

APA, Harvard, Vancouver, ISO, and other styles

31

Řehulka, Martin. "Navrhování nízkohlučných asfaltových směsí." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409822.

Full text

Abstract:

The Master’s thesis is focused on low-noise asphalt mixtures in general, namely asphalt concrete for very thin layers with low noise (BBTM 8 NH) and stone mastic asphalt with low noise (SMA 8 NH). The first half of the thesis describes basic types of asphalt mixtures with low noise, requirements for raw materials (aggregates and asphalt), noise emissions and their measurement methods. The second part deals the design of BBTM 8 NH and SMA 8 NH so that they have the same voids. Subsequently, their parameters were tested. Acoustic absorption, resistence against permanent deformation and stiffness

APA, Harvard, Vancouver, ISO, and other styles

32

Trojan, Jan. "Pohřební služba a kamenictví." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227457.

Full text

Abstract:

A new building stand two single-storey buildings which will be used for the production, housing, sale and storage of the deceased. Objects have rectangular shapes with external dimensions of 9.9 x 24,25 m and 21.0 x 42.85 m. The structures are designed as a vertical system POROTHERM, SPIROLL ceiling and roofing flat roof. The facade will be dealt with silicate plaster rubbing.

APA, Harvard, Vancouver, ISO, and other styles

33

Ech, Mohsen. "Durabilité de la surface de chaussée : influence de la nature du bitume sur la pérennité des couches de roulement." Bordeaux 1, 2007. http://www.theses.fr/2007BOR13530.

Full text

Abstract:

Sur la route, la sécurité est influencée par l'adhérence pneu-chaussée, elle-même conditionnée par la texture de chaussée. Ce travail est focalisé sur l'évaluation de l'influence de la nature du liant sur la pérennité de la macrotexture de couche de roulement. Il vise à quantifier l'amélioration résultant de l'utilisation d'un bitume modifié par des polymères. L'analyse des mécanismes de dégradation d'une couche de roulement permet de se concentrer sur deux mécanismes principaux : l'indentation et l'arrachement de granulats. L'analyse d'une base de données routières montre l'évolution de surfa

APA, Harvard, Vancouver, ISO, and other styles

34

Vlk, Radomír. "Návrh asfaltových směsí typu SAL určených pro opravu cementobetonových krytů." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227301.

Full text

Abstract:

This master's thesis describes how to use the asphalt layer called Stress Absorbing Layer (SAL) and comparises it with other types of SAL with different types of asphalt binders. In the first theoretical part is SAL generally described. In the second part is SAL practically tested and described.

APA, Harvard, Vancouver, ISO, and other styles

35

Hadrzynski, Frederic. "Etude de la rhéologie d'un bitume modifié par des polymères et prévision du comportement mécanique des mélanges avec fines, sables et graviers." Paris 13, 1995. http://www.theses.fr/1995PA132037.

Full text

Abstract:

Cette étude de la rhéologie des liants polymères et de la mécanique des composites granulaires, a été menée au sein de la section des liants routiers du laboratoire central des ponts-et-chaussées (LCPC) et s'inscrit dans le cadre d'un contrat CIFRE avec l'entreprise Cochery-Bourdin-Chausse. Après une étude bibliographique sur le comportement viscoélastique des matériaux bitumineux et des méthodes qui permettent de relier la rhéologie du liant au comportement de l'enrobé, une campagne expérimentale est présentée pour tenter de discerner l'apport des polymères sur le comportement rhéologique des

APA, Harvard, Vancouver, ISO, and other styles

36

Rojas-Garcia, José-Manuel. "Effet de la microstructure, de la macrostructure et de la composition des copolymères à base de styrène et butadiène sur les propriétés de bitumes modifiés." Vandoeuvre-les-Nancy, INPL, 2005. http://www.theses.fr/2005INPL059N.

Full text

Abstract:

This study is focused to the modification of a mexican asphalt (AC-20 Salamanca) with styrene-butadiene copolymers which have different molecular characteristics by using a hot-mix process, and the obtained polymer-modified asphalts (PMA) were characterized by both rheological tests and fluorescence microscopy. The results show that for any concentration of polymer, the PMA may exhibit either emulsion-like or macronetwork morphology. It was found that the composition and block size of the SBS have strong effect on the ordering of the polystyrene and polybutadiene microdomains, and therefore th

APA, Harvard, Vancouver, ISO, and other styles

37

Belke, Eduard. "Preparation of novel bitumen nanocomposites out of polymer-modified montmorillonite nanoparticles." Doctoral thesis, 2017. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-2017080216026.

Full text

Abstract:

To extend the time of service of asphalt roads modified montmorillonite nanoparticles were incorporated into bitumen with the aim of creating a gas barrier inside the bitumen which slows down the diffusion of oxygen through the bitumen. For this purpose [montmorillonite/alkyl-quat-primer] adducts ([MMT/PEI(nkD)xQyR]) were fabricated in which single-montmorillonite platelets were coated by a ultrathin polymer film by reacting montmorillonite particles with poly(ethylenimine) based polycations. The alkyl-quat-primer polymers were synthesised by adding ammonium groups and alkyl chains to hyperbra

APA, Harvard, Vancouver, ISO, and other styles

38

González, González Emma del Carmen. "LAOS characterization of polymer modified bitumens." Master's thesis, 2015. http://hdl.handle.net/1822/36882.

Full text

Abstract:

Dissertação de mestrado in Engineering Rheology<br>In the present work, large amplitude oscillatory shear (LAOS) coupled with Fourier transform rheology (FTR) were used for the first time to characterize the nonlinear rheology of bituminous binders, including two polymer modified bitumens (PMB) containing EVA and HDPE. Additionally, a brief study in the linear regime was done to complete the rheological characterization along with morphological characterization of PMBs by means of fluorescent optical micrographs. The comparison between the LAOS-FTR characteristics of samples was done usi

APA, Harvard, Vancouver, ISO, and other styles

39

Sorge, Ronny. "Einfluss von Mehrfachmodifizierungen auf das Steifigkeits- und Ermüdungsverhalten von Bitumen und Asphaltmischgut." Doctoral thesis, 2018. https://tud.qucosa.de/id/qucosa%3A34031.

Full text

Abstract:

Mit Beeinflussung der Bindemitteleigenschaften durch verschiedene einzelne oder kombi-nierte Modifikationen steigt die Komplexität, die Materialeigenschaften anzusprechen und zu interpretieren. Mit den konventionellen Untersuchungen zur Klassifizierung der Bindemittel-eigenschaften ist dies nicht möglich. Jedoch bestehen unter anderem Möglichkeiten mit dem Dynamischen Scher-Rheometer (DSR) und dem Dynamischen Spaltzug-Schwellversuch (DSZV), die Eigenschaften dieser komplexen Materialen bei zielgerichteter Anwendung im geeigneten Maße anzusprechen. Ein wesentliches Ziel dieser Arbeit war es, K

APA, Harvard, Vancouver, ISO, and other styles

40

Filippelli, Luigi, Roberto Bartolino, and Rossi Cesare Oliviero. "Aggregate structures analysis of bitumen for the production of modified benders in asphalt industry." Thesis, 2013. http://hdl.handle.net/10955/1005.

Full text

Abstract:

Scuola di dottorato Scienza e Tecnica "Bernardino Telesio", Scienze e Tecnologie delle Mesofasi e dei Materiali Molecolari, Ciclo XXVI, a.a. 2013<br>Since antiquity bitumen had been used as a construction material. Nowadays, most of the huge global production of bitumen each year, are functional to the roads paving industry where they are employed as binders for mineral aggregates to produce asphalt mixes. In the paving industry, a suitable bitumen should be fluid enough at to be pumpable and workable for a uniform covering of the mineral aggregates upon amalgamation. Furthermore, once the

APA, Harvard, Vancouver, ISO, and other styles

41

Ashqar, Huthaifa Issam. "Evaluation of polymer modified asphalt binder aging." Master's thesis, 2015. http://hdl.handle.net/1822/34196.

Full text

Abstract:

Dissertação de mestrado em Urban Engineering<br>Asphalt binders used in road pavements basically age in two phases, the short-term aging and the long-term aging. Short-term aging occurs in binders due to mixing, transporting, placing, and compaction of asphalt mixtures, while long-term aging occurs in situ during the lifetime of the pavement. The effect of short-term and long-term aging on the binder reveals in its chemical structure, mainly by increasing the rate of oxidation, and in its physical or rheological properties by hardening. The main aim of this work was the study of the shor

APA, Harvard, Vancouver, ISO, and other styles

42

Brandão, Manuel Filipe Correia Machado. "Estudo de betumes modificados recuperados de misturas produzidas pelo método húmido e pelo método seco." Master's thesis, 2015. http://hdl.handle.net/1822/40506.

Full text

Abstract:

Dissertação de mestrado integrado em Engenharia Civil<br>Com o aumento do volume de tráfego nos últimos anos surge a necessidade de melhorar o desempenho dos pavimentos rodoviários, para diminuir as intervenções de manutenção. Assim, têm surgido vários estudos que englobam a introdução de material polimérico nas misturas betuminosas com o objetivo de melhorar as suas propriedades. O betume é outro material relevante das misturas betuminosas, e sendo este um material derivado do petróleo, cujas reservas têm um tempo de vida finito, é importante encontrar formas de o reutilizar. O objetivo

APA, Harvard, Vancouver, ISO, and other styles

43

Onyango, Felix Odhiambo. "Rubber tyre and plastic waste use in asphalt concrete pavement." Thesis, 2015. http://hdl.handle.net/10352/331.

Full text

Abstract:

M. Tech. (Civil Engineering, Faculty of Engineering and Technology), Vaal University of Technology)<br>Modified asphalt concrete is one of the important construction materials for flexible pavements. The addition of polymers and natural hydrocarbon modifiers to enhance the properties of asphalt concrete over a wide temperature range in paving applications has been the common practice. Currently these modified asphalt mixtures are relatively expensive. However, recycled polymers and rubber added to asphalt have also shown similar results in improving the performance of road pavements. In this

APA, Harvard, Vancouver, ISO, and other styles

44

LO, PRESTI Davide. "RHEOLOGY AND CURING OF TYRE RUBBER MODIFIED BITUMENS." Doctoral thesis, 2011. http://hdl.handle.net/10447/95436.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

"Multi-Scale Characterization of Bitumen Doped with Sustainable Modifiers." Doctoral diss., 2020. http://hdl.handle.net/2286/R.I.57428.

Full text

Abstract:

abstract: This research is a comprehensive study of the sustainable modifiers for asphalt binder. It is a common practice to use modifiers to impart certain properties to asphalt binder; however, in order to facilitate the synthesis and design of highly effective sustainable modifiers, it is critical to thoroughly understand their underlying molecular level mechanisms in combination with micro and macro-level behavior. Therefore, this study incorporates a multi-scale approach using computational modeling and laboratory experiments to provide an in-depth understanding of the mechanisms of inter

APA, Harvard, Vancouver, ISO, and other styles

46

Miranda, Ricardo Filipe Martins. "Estudo da modificação de betumes com polímeros reciclados." Master's thesis, 2014. http://hdl.handle.net/1822/36399.

Full text

Abstract:

Dissertação de mestrado integrado em Engenharia Civil<br>A diminuição das reservas de combustíveis fósseis e a crescente preocupação com a redução do consumo de energia e de emissões de carbono tem conduzido ao desenvolvimento de novas tecnologias, nomeadamente no âmbito das vias de comunicação. Deste modo surgiram novos tipos de misturas betuminosas com o intuito de se tornarem mais vantajosas a nível ambiental, mas também mais económicas do que as que se vinham produzindo. Assim, o presente trabalho têm como objetivo de estudo a modificação de betumes utilizando polímeros reciclados e

APA, Harvard, Vancouver, ISO, and other styles

47

Costa, Liliana Marisa Barros. "Estudo e otimização de ligantes modificados e misturas betuminosas inovadoras com resíduos plásticos." Doctoral thesis, 2018. http://hdl.handle.net/1822/55589.

Full text

Abstract:

Tese de Doutoramento - Programa Doutoral em Engenharia Civil<br>O uso de ligantes betuminosos modificados com polímeros nos pavimentos é usual em vários países, nomeadamente por aumentar o seu ciclo de vida, e por permitir a construção de camadas betuminosas com melhor qualidade e com menor espessura. No entanto, em certos casos esta opção pode aumentar significativamente o custo do ligante. A utilização de resíduos plásticos na modificação de betumes, ao invés de polímeros virgens, apresenta-se assim como uma solução alternativa que pode ser ambiental e economicamente mais sustentável.

APA, Harvard, Vancouver, ISO, and other styles

48

Torres, Hélder Pereira. "Utilização de betumes modificados na regeneração de misturas com elevadas percentagens de reciclagem." Master's thesis, 2014. http://hdl.handle.net/1822/36206.

Full text

Abstract:

Dissertação de mestrado integrado em Engenharia Civil<br>Atualmente, a reciclagem de materiais assume uma importância crescente para a Sociedade, e em particular no que diz respeito ao sector da construção. Nas infraestruturas rodoviárias caminha-se no mesmo sentido, uma vez que a reutilização de materiais nas misturas betuminosas permite fazer frente ao gradual aparecimento duma grande diversidade de resíduos, sendo ainda possível reduzir os custos de produção. O presente estudo tem como objetivo avaliar as vantagens da utilização de betumes modificados comerciais e produzidos em labora

APA, Harvard, Vancouver, ISO, and other styles

49

Fernandes, Sara Raquel Marques. "Desenvolvimento de betumes modificados inovadores para misturas betuminosas sustentáveis." Doctoral thesis, 2018. http://hdl.handle.net/1822/55978.

Full text

Abstract:

Tese de Doutoramento em Engenharia Civil<br>As novas metas ambientais no que concerne à conservação dos recursos naturais e à valorização de resíduos têm servido de motivação para vários estudos científicos de diferentes áreas de investigação. Nesse sentido, no domínio da indústria da pavimentação rodoviária, que consome imensos recursos naturais, tem sido investigada a incorporação de diferentes resíduos em misturas betuminosas de modo a desenvolver soluções mais sustentáveis. Sendo o betume um dos materiais mais valiosos utilizados na pavimentação é fundamental o estudo de novos ligante

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!