Master's Thesis

Inovative asphalt mixtures to flexible pavement structure with using reclaimed asphalt

Final Thesis 7.15 MB

Author of thesis: Ing. Daniel Horáček

Acad. year: 2019/2020

Supervisor: prof. Ing. Jan Kudrna, CSc.

Reviewer: Ing. Zdeněk Poulík

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 the description of Reclaimed asphalt pavement (RAP), its storage and processing in a hot mix center. In the practical part of this thesis, there is described design and test of two High modulus asphalt mixture VMT 22, into which 25% RAP is dosed cold without rejuvenators. These asphalt mixtures are then subjected to functional tests (Stiffness of asphalt mixture test, Resistance to fatigue test, Low temperature properties of asphalt mixture test). The results of the functional tests are compared with the functional requirements in the Czech regulation TP 151. In the end of this thesis it is verified by means of the LayEps software that a suitable design of the asphalt mixture can significantly extend the road life.

Keywords:

Bitumen, Reclaimed Asphalt Pavement (RAP), Polymer Modified Bitumen (PMB), Crumb Rubber Modified Bitumen (CRMB), High Modulus Asphalt Mixture, Stiffness, Resistance to Fatigue, Software LayEps.

Date of defence

29.01.2020

Result of the defence

Defended (thesis was successfully defended)

znamkaAznamka

Grading

A

Process of defence

Student představil komisi prezentaci své diplomové práce. Prezentace byla připravena na vysoké úrovni, jak grafické, tak odborné. Byly přečteny posudky vedoucího a oponenta diplomové práce. Student zodpověděl otázky položené v oponentském posudku. Otázky položené komisí: - Buďte opatrně s tím, že by se porušila až za 63 let, protože by mohlo dojít i dříve k porušení mrazovými trhlinami.

Language of thesis

Czech

Faculty

Department

Institute of Road Structures

Study programme

Civil Engineering (N-P-C-SI)

Field of study

Constructions and Traffic Structures (K)

Composition of Committee

doc.Ing. Katarína Bačová, Ph.D. - předseda,
doc. Ing. Petr Hýzl, Ph.D. - místopředseda,
Ing. Pavel Šperka - tajemník,
Ing. Michal Radimský, Ph.D. - člen,
Ing. Jiří Apeltauer, Ph.D. - člen,
Ing. Ivo Skalický - člen,
Ing. Jiří Matula - člen,
Ing. Petr Smítal - člen,

Supervisor’s report
prof. Ing. Jan Kudrna, CSc.

Grade proposed by supervisor: A

File inserted by supervisor Size
51909.pdf 179,82 kB

Reviewer’s report
Ing. Zdeněk Poulík

Grade proposed by reviewer: A

File inserted by the reviewer Size
51910.pdf 108,93 kB

Responsibility: Mgr. et Mgr. Hana Odstrčilová