Incorporating self-healing technology in asphalt pavement has been demonstrated to have great potential to prolong its service life. To this aim, the calcium alginate capsules encapsulating rejuvenator were manufactured and proved to have sufficient thermal stability and mechanical resistance to survive the asphalt production and compaction process. In this research, the healing effect of calcium alginate capsules were investigated in porous asphalt concrete. X-ray computed tomography (XCT) was used to visualize the distribution of capsules in porous asphalt concrete. A damaging and healing programme was carried out to evaluate the healing efficiency of these capsules. Semi-circular bending (SCB) tests was employed as a damaging process to investigate the fracture resistance of the porous asphalt concrete samples. The results showed that calcium alginate capsules were able to improve the healing capacity of porous asphalt concrete.
Original languageEnglish
Title of host publication4th International Conference on Service Life Design for Infrastructures
Subtitle of host publication(SLD4) 27-30 August 2018 – Delft, Netherlands
EditorsGuang Ye, Yong Yuan, Claudia Romero Rodriguez, Hongzhi Zhang, Branko Šavija
ISBN (Electronic)978-2-35158-213-8
Publication statusPublished - 2018
Event4th International Conference on Service
Life Design for Infrastructures
- Delft, Netherlands
Duration: 27 Aug 201830 Aug 2018
Conference number: 4

Publication series

NameRilem proceedings
NumberPRO 125


Conference4th International Conference on Service
Life Design for Infrastructures
Abbreviated titleSLD4

    Research areas

  • Efflorescence, cement-based exterior wall, mitigation, metakaolin

ID: 46711992