Research and Measuring Technology Needs to Better Model and Measure Fatigue Crack Development of Thinly Surfaced Asphalt Road Pavements
The root cause of premature failures in relatively thin (<50 mm) asphalt surfaced roads is often a challenge to solve during forensic investigations in South Africa (SA). This description is based on peer review type discussions with forensic investigations experts as well as published research p...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | CivilEng |
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| Online Access: | https://www.mdpi.com/2673-4109/3/2/27 |
| _version_ | 1797488718176583680 |
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| author | Emile Horak Morris De Beer Gerrie van Zyl James Maina Damien Ali Hamada Fakra |
| author_facet | Emile Horak Morris De Beer Gerrie van Zyl James Maina Damien Ali Hamada Fakra |
| author_sort | Emile Horak |
| collection | DOAJ |
| description | The root cause of premature failures in relatively thin (<50 mm) asphalt surfaced roads is often a challenge to solve during forensic investigations in South Africa (SA). This description is based on peer review type discussions with forensic investigations experts as well as published research papers. The areas of ignorance or areas where research effort is needed are identified. These observations serve to identify areas of new knowledge needed in terms of actual verification with measurements, measurement technology, and modeling of the observed phenomena. The main objectives of this discussion paper are to highlight the evolution of distress development in asphalt layers starting from the identification and description of the kind of microcracks, effects of microcracks in the debonding of the asphalt layer from lower layer, and vehicle–pavement interactions (VPI) of moving truck wheels focusing on the thin asphalt layer. Specific reference is made to the need to measure and model the effects of bow waves in front of and next to the loaded rolling wheel. |
| first_indexed | 2024-03-10T00:06:19Z |
| format | Article |
| id | doaj.art-7d0e7dc3f7eb4060b0f54e87234c0b41 |
| institution | Directory Open Access Journal |
| issn | 2673-4109 |
| language | English |
| last_indexed | 2024-03-10T00:06:19Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | CivilEng |
| spelling | doaj.art-7d0e7dc3f7eb4060b0f54e87234c0b412023-11-23T16:07:25ZengMDPI AGCivilEng2673-41092022-05-013245646710.3390/civileng3020027Research and Measuring Technology Needs to Better Model and Measure Fatigue Crack Development of Thinly Surfaced Asphalt Road PavementsEmile Horak0Morris De Beer1Gerrie van Zyl2James Maina3Damien Ali Hamada Fakra4KUBU Consultancy Pty Ltd., Pretoria 0081, South AfricaRoad Pavement Forensic Engineering (Pty) Ltd., Pretoria 0081, South AfricaMycube Asset Management Systems (Pty) Ltd., Pretoria 0081, South AfricaDepartment of Engineering, Built Environment and Information Technology, University of Pretoria, Pretoria 0002, South AfricaPIMENT Laboratory, Université de la Réunion, CEDEX 9, 97400 Saint-Denis, Réunion, FranceThe root cause of premature failures in relatively thin (<50 mm) asphalt surfaced roads is often a challenge to solve during forensic investigations in South Africa (SA). This description is based on peer review type discussions with forensic investigations experts as well as published research papers. The areas of ignorance or areas where research effort is needed are identified. These observations serve to identify areas of new knowledge needed in terms of actual verification with measurements, measurement technology, and modeling of the observed phenomena. The main objectives of this discussion paper are to highlight the evolution of distress development in asphalt layers starting from the identification and description of the kind of microcracks, effects of microcracks in the debonding of the asphalt layer from lower layer, and vehicle–pavement interactions (VPI) of moving truck wheels focusing on the thin asphalt layer. Specific reference is made to the need to measure and model the effects of bow waves in front of and next to the loaded rolling wheel.https://www.mdpi.com/2673-4109/3/2/27micro crackschicken net crackscrocodile cracksflexingradius of curvatureexcessive pore water pressure |
| spellingShingle | Emile Horak Morris De Beer Gerrie van Zyl James Maina Damien Ali Hamada Fakra Research and Measuring Technology Needs to Better Model and Measure Fatigue Crack Development of Thinly Surfaced Asphalt Road Pavements CivilEng micro cracks chicken net cracks crocodile cracks flexing radius of curvature excessive pore water pressure |
| title | Research and Measuring Technology Needs to Better Model and Measure Fatigue Crack Development of Thinly Surfaced Asphalt Road Pavements |
| title_full | Research and Measuring Technology Needs to Better Model and Measure Fatigue Crack Development of Thinly Surfaced Asphalt Road Pavements |
| title_fullStr | Research and Measuring Technology Needs to Better Model and Measure Fatigue Crack Development of Thinly Surfaced Asphalt Road Pavements |
| title_full_unstemmed | Research and Measuring Technology Needs to Better Model and Measure Fatigue Crack Development of Thinly Surfaced Asphalt Road Pavements |
| title_short | Research and Measuring Technology Needs to Better Model and Measure Fatigue Crack Development of Thinly Surfaced Asphalt Road Pavements |
| title_sort | research and measuring technology needs to better model and measure fatigue crack development of thinly surfaced asphalt road pavements |
| topic | micro cracks chicken net cracks crocodile cracks flexing radius of curvature excessive pore water pressure |
| url | https://www.mdpi.com/2673-4109/3/2/27 |
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