Determination of Gradation of Recycled Mixed Coarse Aggregates for Pavement Base or Subbase by Crushing Fractals
A loading crushing test of recycled mixed coarse aggregates in the same particle diameter range is carried out, and the crushed coarse aggregates are screened, manually sorted, and weighed to study the crushing characteristics of recycled mixed coarse aggregates. The results show that the effect of...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/7963261 |
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| author | Jianjun Li Yong Pei Pengcheng Xu Hui Chang |
| author_facet | Jianjun Li Yong Pei Pengcheng Xu Hui Chang |
| author_sort | Jianjun Li |
| collection | DOAJ |
| description | A loading crushing test of recycled mixed coarse aggregates in the same particle diameter range is carried out, and the crushed coarse aggregates are screened, manually sorted, and weighed to study the crushing characteristics of recycled mixed coarse aggregates. The results show that the effect of “reinforcing the strong and discarding the weak” exists between two types of recycled mixed coarse aggregates with different strength in the course of crushing. After crushing, the cumulative mass content under each sieve at all levels and the sieve diameter ratio conform to the geometric fractal characteristics, and the fractal dimension is influenced by the material strength, the initial mixing ratio, and the initial void ratio. On this basis, the fractal dimension of recycled mixed coarse aggregates is determined by the crushing test, and the gradation of recycled mixed coarse aggregates for pavement base or subbase is then determined by fractal dimension. Finally, the mixing amount of recycled clay bricks in recycled mixed coarse aggregates for pavement base or subbase is discussed. |
| format | Article |
| id | doaj-art-52b58850dd6b4fc09c8149ea8101f58c |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-52b58850dd6b4fc09c8149ea8101f58c2025-02-03T01:03:36ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422019-01-01201910.1155/2019/79632617963261Determination of Gradation of Recycled Mixed Coarse Aggregates for Pavement Base or Subbase by Crushing FractalsJianjun Li0Yong Pei1Pengcheng Xu2Hui Chang3School of Science, North University of China, 030051 Taiyuan, Shanxi, ChinaSchool of Science, North University of China, 030051 Taiyuan, Shanxi, ChinaSchool of Science, North University of China, 030051 Taiyuan, Shanxi, ChinaSchool of Science, North University of China, 030051 Taiyuan, Shanxi, ChinaA loading crushing test of recycled mixed coarse aggregates in the same particle diameter range is carried out, and the crushed coarse aggregates are screened, manually sorted, and weighed to study the crushing characteristics of recycled mixed coarse aggregates. The results show that the effect of “reinforcing the strong and discarding the weak” exists between two types of recycled mixed coarse aggregates with different strength in the course of crushing. After crushing, the cumulative mass content under each sieve at all levels and the sieve diameter ratio conform to the geometric fractal characteristics, and the fractal dimension is influenced by the material strength, the initial mixing ratio, and the initial void ratio. On this basis, the fractal dimension of recycled mixed coarse aggregates is determined by the crushing test, and the gradation of recycled mixed coarse aggregates for pavement base or subbase is then determined by fractal dimension. Finally, the mixing amount of recycled clay bricks in recycled mixed coarse aggregates for pavement base or subbase is discussed.http://dx.doi.org/10.1155/2019/7963261 |
| spellingShingle | Jianjun Li Yong Pei Pengcheng Xu Hui Chang Determination of Gradation of Recycled Mixed Coarse Aggregates for Pavement Base or Subbase by Crushing Fractals Advances in Materials Science and Engineering |
| title | Determination of Gradation of Recycled Mixed Coarse Aggregates for Pavement Base or Subbase by Crushing Fractals |
| title_full | Determination of Gradation of Recycled Mixed Coarse Aggregates for Pavement Base or Subbase by Crushing Fractals |
| title_fullStr | Determination of Gradation of Recycled Mixed Coarse Aggregates for Pavement Base or Subbase by Crushing Fractals |
| title_full_unstemmed | Determination of Gradation of Recycled Mixed Coarse Aggregates for Pavement Base or Subbase by Crushing Fractals |
| title_short | Determination of Gradation of Recycled Mixed Coarse Aggregates for Pavement Base or Subbase by Crushing Fractals |
| title_sort | determination of gradation of recycled mixed coarse aggregates for pavement base or subbase by crushing fractals |
| url | http://dx.doi.org/10.1155/2019/7963261 |
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