Dynamic mechanical properties and failure mechanism of sustainable lightweight aggregate rubber concrete
Developing high-performance sustainable concrete is an ongoing pursuit in the civil engineering. In the current study, a sustainable lightweight aggregate rubber concrete was developed. The cellular artificial lightweight aggregate produced from sludge is used as coarse aggregate, while recycled rub...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425001346 |
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| author | Lin Chen Fei Yang Yehua Hong Wanhui Feng Xin Li |
| author_facet | Lin Chen Fei Yang Yehua Hong Wanhui Feng Xin Li |
| author_sort | Lin Chen |
| collection | DOAJ |
| description | Developing high-performance sustainable concrete is an ongoing pursuit in the civil engineering. In the current study, a sustainable lightweight aggregate rubber concrete was developed. The cellular artificial lightweight aggregate produced from sludge is used as coarse aggregate, while recycled rubber particles from waste tires are utilized as fine aggregate. Subsquently, the dynamic mechanical behaviors and failure mechanisms of sustainable lightweight aggregate rubber concrete were experimentally investigated. It is found that the elastic failure characteristics of rubber particles provide additional crack paths for the conical failure of artificial lightweight aggregate, enhancing the mortar's flexibility and dynamic energy dissipation capacity. Meanwhile, the microporous structure of artificial lightweight aggregate can both attenuates the stress waves and simultaneously absorbs the harmful air introduced by air-entrainment of rubber particles. Dynamic test results indicate that, with a reasonable proportion of artificial lightweight aggregate and rubber particles, the dynamic specific strength and energy absorption of the resulting concrete are 3% and 6% higher, respectively, than those of normal concrete. This work can provide a good reference for the design and application of sustainable concrete, especially in the field of impact resistance. |
| format | Article |
| id | doaj-art-3fb4c0f0763f42ac95bd14ba40e17cd3 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-3fb4c0f0763f42ac95bd14ba40e17cd32025-01-26T05:03:56ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013519821995Dynamic mechanical properties and failure mechanism of sustainable lightweight aggregate rubber concreteLin Chen0Fei Yang1Yehua Hong2Wanhui Feng3Xin Li4School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China; Engineering & Technical Department, Nanjing University of Science and Technology, Nanjing, 210094, ChinaSchool of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China; Corresponding author.School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, ChinaCollege of Urban and Rural Construction, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, ChinaEngineering & Technical Department, Nanjing University of Science and Technology, Nanjing, 210094, China; Corresponding author.Developing high-performance sustainable concrete is an ongoing pursuit in the civil engineering. In the current study, a sustainable lightweight aggregate rubber concrete was developed. The cellular artificial lightweight aggregate produced from sludge is used as coarse aggregate, while recycled rubber particles from waste tires are utilized as fine aggregate. Subsquently, the dynamic mechanical behaviors and failure mechanisms of sustainable lightweight aggregate rubber concrete were experimentally investigated. It is found that the elastic failure characteristics of rubber particles provide additional crack paths for the conical failure of artificial lightweight aggregate, enhancing the mortar's flexibility and dynamic energy dissipation capacity. Meanwhile, the microporous structure of artificial lightweight aggregate can both attenuates the stress waves and simultaneously absorbs the harmful air introduced by air-entrainment of rubber particles. Dynamic test results indicate that, with a reasonable proportion of artificial lightweight aggregate and rubber particles, the dynamic specific strength and energy absorption of the resulting concrete are 3% and 6% higher, respectively, than those of normal concrete. This work can provide a good reference for the design and application of sustainable concrete, especially in the field of impact resistance.http://www.sciencedirect.com/science/article/pii/S2238785425001346Sustainable concreteArtificial lightweight aggregateRecycled rubber utilizationDynamic mechanicsMulti-scale failure mechanism |
| spellingShingle | Lin Chen Fei Yang Yehua Hong Wanhui Feng Xin Li Dynamic mechanical properties and failure mechanism of sustainable lightweight aggregate rubber concrete Journal of Materials Research and Technology Sustainable concrete Artificial lightweight aggregate Recycled rubber utilization Dynamic mechanics Multi-scale failure mechanism |
| title | Dynamic mechanical properties and failure mechanism of sustainable lightweight aggregate rubber concrete |
| title_full | Dynamic mechanical properties and failure mechanism of sustainable lightweight aggregate rubber concrete |
| title_fullStr | Dynamic mechanical properties and failure mechanism of sustainable lightweight aggregate rubber concrete |
| title_full_unstemmed | Dynamic mechanical properties and failure mechanism of sustainable lightweight aggregate rubber concrete |
| title_short | Dynamic mechanical properties and failure mechanism of sustainable lightweight aggregate rubber concrete |
| title_sort | dynamic mechanical properties and failure mechanism of sustainable lightweight aggregate rubber concrete |
| topic | Sustainable concrete Artificial lightweight aggregate Recycled rubber utilization Dynamic mechanics Multi-scale failure mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425001346 |
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