Correlation between Rheological Fatigue Tests on Bitumen and Various Cracking Tests on Asphalt Mixtures
Accurate characterisation and appropriate binder selection are essential to increase the load-induced cracking resistance of asphalt mixtures at an intermediate temperature. Hence, the primary goal of this study was to correlate the cracking resistance exerted by the binder with the cracking perform...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-12-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/14/24/7839 |
| _version_ | 1797502653579657216 |
|---|---|
| author | Muhammad Aakif Ishaq Filippo Giustozzi |
| author_facet | Muhammad Aakif Ishaq Filippo Giustozzi |
| author_sort | Muhammad Aakif Ishaq |
| collection | DOAJ |
| description | Accurate characterisation and appropriate binder selection are essential to increase the load-induced cracking resistance of asphalt mixtures at an intermediate temperature. Hence, the primary goal of this study was to correlate the cracking resistance exerted by the binder with the cracking performance of asphalt mixtures. The laboratory-based experimental plan covered various types of laboratory tests specified by various agencies and road authorities to study the correlation of a neat bitumen and five polymer-modified binders with their corresponding asphalt mixtures. The fatigue life of the binders was assessed through a Linear Amplitude Sweep (LAS) test and statistically correlated with various load-induced cracking parameters from the indirect tensile test, semi-circular bending (SCB) test, and four points bending beam test (FPBB) of asphalt mixtures at 25 °C. Binders and mixes were further grouped depending on their polymeric family (i.e., modified with a particular type of polymer) to validate their statistical correlation. The indicator that mostly correlated the binder properties with the asphalt mixture properties is the secant modulus from the SCB test. Fatigue parameters obtained through LAS better explain the asphalt fatigue performance obtained through FPBB; specifically, asphalt tests at high strain levels (e.g., 400 micro strain) better correlate to the LAS fatigue parameter (Nf). |
| first_indexed | 2024-03-10T03:39:09Z |
| format | Article |
| id | doaj.art-80ab02aafc4a4659997a4a9a4fb763be |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T03:39:09Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-80ab02aafc4a4659997a4a9a4fb763be2023-11-23T09:23:46ZengMDPI AGMaterials1996-19442021-12-011424783910.3390/ma14247839Correlation between Rheological Fatigue Tests on Bitumen and Various Cracking Tests on Asphalt MixturesMuhammad Aakif Ishaq0Filippo Giustozzi1Civil and Infrastructure Engineering, School of Engineering, RMIT University, Melbourne, VIC 3001, AustraliaCivil and Infrastructure Engineering, School of Engineering, RMIT University, Melbourne, VIC 3001, AustraliaAccurate characterisation and appropriate binder selection are essential to increase the load-induced cracking resistance of asphalt mixtures at an intermediate temperature. Hence, the primary goal of this study was to correlate the cracking resistance exerted by the binder with the cracking performance of asphalt mixtures. The laboratory-based experimental plan covered various types of laboratory tests specified by various agencies and road authorities to study the correlation of a neat bitumen and five polymer-modified binders with their corresponding asphalt mixtures. The fatigue life of the binders was assessed through a Linear Amplitude Sweep (LAS) test and statistically correlated with various load-induced cracking parameters from the indirect tensile test, semi-circular bending (SCB) test, and four points bending beam test (FPBB) of asphalt mixtures at 25 °C. Binders and mixes were further grouped depending on their polymeric family (i.e., modified with a particular type of polymer) to validate their statistical correlation. The indicator that mostly correlated the binder properties with the asphalt mixture properties is the secant modulus from the SCB test. Fatigue parameters obtained through LAS better explain the asphalt fatigue performance obtained through FPBB; specifically, asphalt tests at high strain levels (e.g., 400 micro strain) better correlate to the LAS fatigue parameter (Nf).https://www.mdpi.com/1996-1944/14/24/7839fatiguecrackingbitumenasphalttensile strengthfracture energy |
| spellingShingle | Muhammad Aakif Ishaq Filippo Giustozzi Correlation between Rheological Fatigue Tests on Bitumen and Various Cracking Tests on Asphalt Mixtures Materials fatigue cracking bitumen asphalt tensile strength fracture energy |
| title | Correlation between Rheological Fatigue Tests on Bitumen and Various Cracking Tests on Asphalt Mixtures |
| title_full | Correlation between Rheological Fatigue Tests on Bitumen and Various Cracking Tests on Asphalt Mixtures |
| title_fullStr | Correlation between Rheological Fatigue Tests on Bitumen and Various Cracking Tests on Asphalt Mixtures |
| title_full_unstemmed | Correlation between Rheological Fatigue Tests on Bitumen and Various Cracking Tests on Asphalt Mixtures |
| title_short | Correlation between Rheological Fatigue Tests on Bitumen and Various Cracking Tests on Asphalt Mixtures |
| title_sort | correlation between rheological fatigue tests on bitumen and various cracking tests on asphalt mixtures |
| topic | fatigue cracking bitumen asphalt tensile strength fracture energy |
| url | https://www.mdpi.com/1996-1944/14/24/7839 |
| work_keys_str_mv | AT muhammadaakifishaq correlationbetweenrheologicalfatiguetestsonbitumenandvariouscrackingtestsonasphaltmixtures AT filippogiustozzi correlationbetweenrheologicalfatiguetestsonbitumenandvariouscrackingtestsonasphaltmixtures |