dc.contributor.author |
Riara, Martin M. |
|
dc.contributor.author |
Tang, Ping |
|
dc.contributor.author |
Mo, Liantong |
|
dc.contributor.author |
Javilla, Barugahare |
|
dc.contributor.author |
Wu, Shaopeng |
|
dc.date.accessioned |
2018-08-02T07:21:10Z |
|
dc.date.available |
2018-08-02T07:21:10Z |
|
dc.date.issued |
2018-02 |
|
dc.identifier.citation |
Construction and Building Materials, Volume 161, Pages 45-52 |
en_US |
dc.identifier.uri |
https://www.sciencedirect.com/science/article/pii/S0950061817322833 |
|
dc.identifier.uri |
http://repository.seku.ac.ke/handle/123456789/4252 |
|
dc.description |
DOI: https://doi.org/10.1016/j.conbuildmat.2017.11.074 |
en_US |
dc.description.abstract |
This study investigated the crack healing ability of aged and unaged AC-13 basalt asphalt mixtures using five healing agents. Notched semicircular asphalt mixtures were cracked and healed using the healing agents and the recovered critical load at fracture was adopted as a healing indicator. Crack healing was found to be dependent on the type of healing agent, healing time and aging of mixture. A maximum healing up to 73% was obtained after 8 days of uninterrupted healing. Multiple fracturing-rehealing of the healed mixture didn’t significantly affect the healing index (HI) of the successive cycles. The re-healing performance was sensitive to the drying rate of healing agents, and a high drying rate reduced the re-healing performance. The first day of healing had the highest contribution to the ultimate healing potential, and further increase in the healing duration resulted in a steady increase in healing index. The high healing performance indicated that carefully selected healing agents have the potential to heal cracks in asphalt pavements. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Elsevier |
en_US |
dc.subject |
Asphalt pavements |
en_US |
dc.subject |
Maintenance |
en_US |
dc.subject |
Healing agents |
en_US |
dc.subject |
Crack healing |
en_US |
dc.title |
Investigation into crack healing of asphalt mixtures using healing agents |
en_US |
dc.type |
Article |
en_US |