Study on the Applicability of Elastic Recovery (Resilience) Experiment for Asphalt-Rubber
In this paper, the applicability of the elastic recovery (resilience) experiment for asphalt-rubber (AR) binders has been quantitatively assessed. The mechanical model, based on the viscoelastic constitutive relation and particle inclusion theory, was developed. The interfacial detachment between cr...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/2286794 |
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| author | Zechen Yao Renfeng Yang Jian Kang Zhigang Zhang |
| author_facet | Zechen Yao Renfeng Yang Jian Kang Zhigang Zhang |
| author_sort | Zechen Yao |
| collection | DOAJ |
| description | In this paper, the applicability of the elastic recovery (resilience) experiment for asphalt-rubber (AR) binders has been quantitatively assessed. The mechanical model, based on the viscoelastic constitutive relation and particle inclusion theory, was developed. The interfacial detachment between crumb rubber (CR) particles and asphalt caused by stress concentration was analyzed with Weibull statistical equations. Based on the road roughness excitation, the vehicle-road coupling vibration model was established to analyze the impact of vehicle loading on road surface deformation. AR binders with different CR particle sizes were assessed using scanning electron microscope (SEM) imaging and prepared for testing the elastic recovery (resilience). The results showed that the greater internal stress caused by the longer stretch length of AR binders in the elastic recovery experiment was ten times higher than that obtained from the resilience experiment, leading to the interfacial detachment between asphalt and the CR particles. Hence, the elastic property of some of the CR particles with high modulus was not reflected, resulting in the test values being lower than actual values. With the reduction of CR particle size, the interfacial detachment was improved in the elastic recovery experiment due to intense material interchange and the enhancement of interfacial bond strength. The millimeter-scale compression deformation of the AR binder in the resilience experiment was closer to the actual deformation of the road surface. The experimental time of resilience (120 min) has been reported less than that for elastic recovery (200 min–230 min). This study shows that the resilience experiment has a significant advantage in assessing the elastic property of the AR binder. |
| format | Article |
| id | doaj-art-19b48497e270462a914808dab2750951 |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-19b48497e270462a914808dab27509512025-02-03T06:41:58ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/2286794Study on the Applicability of Elastic Recovery (Resilience) Experiment for Asphalt-RubberZechen Yao0Renfeng Yang1Jian Kang2Zhigang Zhang3School of Construction MachinerySchool of Construction MachineryHebei Transportation Investment Group CorporationYanchong Temporary Preparatory Office of Hebei Province ExpresswayIn this paper, the applicability of the elastic recovery (resilience) experiment for asphalt-rubber (AR) binders has been quantitatively assessed. The mechanical model, based on the viscoelastic constitutive relation and particle inclusion theory, was developed. The interfacial detachment between crumb rubber (CR) particles and asphalt caused by stress concentration was analyzed with Weibull statistical equations. Based on the road roughness excitation, the vehicle-road coupling vibration model was established to analyze the impact of vehicle loading on road surface deformation. AR binders with different CR particle sizes were assessed using scanning electron microscope (SEM) imaging and prepared for testing the elastic recovery (resilience). The results showed that the greater internal stress caused by the longer stretch length of AR binders in the elastic recovery experiment was ten times higher than that obtained from the resilience experiment, leading to the interfacial detachment between asphalt and the CR particles. Hence, the elastic property of some of the CR particles with high modulus was not reflected, resulting in the test values being lower than actual values. With the reduction of CR particle size, the interfacial detachment was improved in the elastic recovery experiment due to intense material interchange and the enhancement of interfacial bond strength. The millimeter-scale compression deformation of the AR binder in the resilience experiment was closer to the actual deformation of the road surface. The experimental time of resilience (120 min) has been reported less than that for elastic recovery (200 min–230 min). This study shows that the resilience experiment has a significant advantage in assessing the elastic property of the AR binder.http://dx.doi.org/10.1155/2022/2286794 |
| spellingShingle | Zechen Yao Renfeng Yang Jian Kang Zhigang Zhang Study on the Applicability of Elastic Recovery (Resilience) Experiment for Asphalt-Rubber Advances in Civil Engineering |
| title | Study on the Applicability of Elastic Recovery (Resilience) Experiment for Asphalt-Rubber |
| title_full | Study on the Applicability of Elastic Recovery (Resilience) Experiment for Asphalt-Rubber |
| title_fullStr | Study on the Applicability of Elastic Recovery (Resilience) Experiment for Asphalt-Rubber |
| title_full_unstemmed | Study on the Applicability of Elastic Recovery (Resilience) Experiment for Asphalt-Rubber |
| title_short | Study on the Applicability of Elastic Recovery (Resilience) Experiment for Asphalt-Rubber |
| title_sort | study on the applicability of elastic recovery resilience experiment for asphalt rubber |
| url | http://dx.doi.org/10.1155/2022/2286794 |
| work_keys_str_mv | AT zechenyao studyontheapplicabilityofelasticrecoveryresilienceexperimentforasphaltrubber AT renfengyang studyontheapplicabilityofelasticrecoveryresilienceexperimentforasphaltrubber AT jiankang studyontheapplicabilityofelasticrecoveryresilienceexperimentforasphaltrubber AT zhigangzhang studyontheapplicabilityofelasticrecoveryresilienceexperimentforasphaltrubber |