Investigation on the self-healing properties of rejuvenated asphalt prepared from pre-desulfurised crumb tire rubber using waste cooking oil
Source abstract
Abstract
Waste tire crumb rubber (WTCR) and waste cooking oil (WCO) can be utilised to develop waste rubber/oil (WRO) rejuvenators that exhibit superior rejuvenation and modification performance. Furthermore, the self-healing characteristics of WRO rejuvenated asphalt are crucial for improving its fatigue performance, although significant deficiencies remain. Therefore, this paper investigated the self-healing properties of WRO rejuvenated asphalt through fatigue-healing-fatigue test and Wool-O’Conner model. It is revealed that WRO rejuvenator shows excellent self-healing potential, with the stability of self-healing properties and its sensitivity to healing conditions significantly influenced by the ratio of WTCR to WCO and WRO content. Although WRO rejuvenators with higher macromolecular content show lower initial instantaneous healing rates than those with lightweight components, the healing capacity can be improved by prolonging healing time. Additionally, the self-healing capability of WRO rejuvenated asphalt increases significantly with temperature and fluidity, but an upper threshold can be observed.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Asphalt Pavement Performance Evaluation · Polymer composites and self-healing · Grouting, Rheology, and Soil Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Chongqing University
Ministry of Education
Funding
National Natural Science Foundation of China · National International S&T Cooperation Program-funded Project, China
References (62)
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