Master's Thesis

Dosage of rejuvenating agents to asphalt mixture with high content of RAP

Final Thesis 2.81 MB

Author of thesis: Ing. Markéta Čumíčková

Acad. year: 2018/2019

Supervisor: doc. Ing. Ondřej Dašek, Ph.D.

Reviewer: Ing. Iva Coufalíková

Abstract:

The diploma thesis is focused on the appropriate dosage of rejuvenating agents in asphalt mixtures with high content of RAP. The empirical and functional laboratory tests are described in the theoretical part. The practical part deals with the estimation of the optimal amount of rejuvenating agents by means of laboratory tests so that the rheological properties of the degraded asphalt binder can be restored by suitable dosing into the RAP. As part of the TAČR ZÉTA project, an experimental section of asphalt mixture containing 50 % of the RAP and an appropriate amount of the rejuvenating agents was created. The aim of the thesis is to find an optimal dosage of the rejuvenating agents in the samples of the RAP and laboratory aged asphalt binder of gradation 50/70, to determine the effectiveness of selected rejuvenating agents and to monitor changes in the parameters of the experimental section during the period of time.

Keywords:

rejuvenating agent, RAP, asphalt binder, recycling of asphalt roads, rejuvenator, flowing additive, RTFOT, DSR, BBR, needle penetration, softening point, complex shear modulus, phase angle, critical temperature, creep stiffness

Date of defence

31.01.2019

Result of the defence

Defended (thesis was successfully defended)

znamkaAznamka

Grading

A

Process of defence

Studentka Čumíčková Markéta seznámila komisi s obsahem své diplomové práce. Na otázky a připomínky plynoucí z posudků vedoucího a oponenta a komise při odborné rozpravě nad diplomovou prací ~Dávkování oživovacích přísad do asfaltové směsi s vysokým obsahem R-materiálu~ reagovala výborně.

Language of thesis

Czech

Faculty

Fakulta stavební

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. Ivana Mahdalová, Ph.D. - předseda,
doc. Ing. Petr Holcner, Ph.D. - místopředseda,
Ing. Pavel Šperka - tajemník,
Ing. Radka Matuszková - člen,
Ing. Ondřej Dašek, Ph.D. - člen,
Ing. Petr Kumpošt, Ph.D. - člen,
Ing. Petr Soldán - člen,
Ing. Lotfi Hatem, CSc. - člen

Supervisor’s report
doc. Ing. Ondřej Dašek, Ph.D.

File inserted by supervisor Size
46566.pdf 445,45 kB
46766.pdf 153,94 kB

Reviewer’s report
Ing. Iva Coufalíková

File inserted by the reviewer Size
46776.pdf 670,12 kB

Responsibility: Mgr. et Mgr. Hana Odstrčilová