TY - GEN
T1 - Design and preparation of alginate capsules for in-situ rejuvenation in asphalt pavement joint mix
AU - Xu, S.
AU - Tabaković, A.
AU - Lynch, A.
AU - Recordon, P.
AU - Collier, C.
AU - Liu, X.
AU - Winterlich, E.
AU - Schlangen, E.
PY - 2024
Y1 - 2024
N2 - An asphalt joint is formed when a fresh mix is laid and compacted next to an existing layer, brings about temperature difference during compaction, and therefore requires extra care in quality control and expose to higher cracking risks. Self-healing asphalt aims to stimulate the healing capacity of asphalt mixture and prolong its service life. The main objective of this study is to develop and optimize a calcium alginate capsules healing system for an asphalt joint mix. Capsules following two different self-healing concepts were prepared, namely conventional alginate capsules and conductive alginate capsules. Microscopy, Computed Tomography (CT) and Thermogravimetry analysis (TGA) were used to investigate the performance of alginate capsules. The results show that both types of capsules have a porous structure and a stable performance under high temperature, and therefore potentially survive from the asphalt mixing and production process. These capsules will be implemented and evaluated in full asphalt mix in future research.
AB - An asphalt joint is formed when a fresh mix is laid and compacted next to an existing layer, brings about temperature difference during compaction, and therefore requires extra care in quality control and expose to higher cracking risks. Self-healing asphalt aims to stimulate the healing capacity of asphalt mixture and prolong its service life. The main objective of this study is to develop and optimize a calcium alginate capsules healing system for an asphalt joint mix. Capsules following two different self-healing concepts were prepared, namely conventional alginate capsules and conductive alginate capsules. Microscopy, Computed Tomography (CT) and Thermogravimetry analysis (TGA) were used to investigate the performance of alginate capsules. The results show that both types of capsules have a porous structure and a stable performance under high temperature, and therefore potentially survive from the asphalt mixing and production process. These capsules will be implemented and evaluated in full asphalt mix in future research.
UR - http://www.scopus.com/inward/record.url?scp=85185549667&partnerID=8YFLogxK
U2 - 10.1201/9781003387374-36
DO - 10.1201/9781003387374-36
M3 - Conference contribution
AN - SCOPUS:85185549667
SN - 9781032480923
T3 - Advances in Functional Pavements - Proceedings of the 7th Chinese-European Workshop on Functional Pavements, CEW 2023
SP - 182
EP - 186
BT - Advances in Functional Pavements - Proceedings of the 7th Chinese-European Workshop on Functional Pavements, CEW 2023
A2 - Zhang, Yuqing
A2 - Airey, Gordon
A2 - Rahman, Mujib
A2 - Wang, Haopeng
PB - CRC Press / Balkema - Taylor & Francis Group
T2 - 7th Chinese-European Workshop on Functional Pavements, CEW 2023
Y2 - 2 July 2023 through 4 July 2023
ER -