Influence of granulometry, cement content, and moisture in the mechanical performance of the cemented crushed stone
The Cemented Crushed Stone (C2, as the South African Classification) was widely used on the main high-traffic Brazilian highways in the 1970s and 1980s. However, it presents several limitations for its use in the road work related to the properties of the material and its almost fragile nature, sinc...
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| Format: | Article |
| Language: | English |
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Associação Nacional de Pesquisa e Ensino em Transportes (ANPET)
2020-04-01
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| Series: | Transportes |
| Subjects: | |
| Online Access: | https://revistatransportes.org.br/anpet/article/view/1861 |
| _version_ | 1818564444374958080 |
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| author | Kharine Prado Fernando Silva Albuquerque Guilherme Bravo de Oliveira Almeida |
| author_facet | Kharine Prado Fernando Silva Albuquerque Guilherme Bravo de Oliveira Almeida |
| author_sort | Kharine Prado |
| collection | DOAJ |
| description | The Cemented Crushed Stone (C2, as the South African Classification) was widely used on the main high-traffic Brazilian highways in the 1970s and 1980s. However, it presents several limitations for its use in the road work related to the properties of the material and its almost fragile nature, since as soon as the large variations in the tensile strain take place along the loading cycle, critical and accelerated degradation also occur, leading to material fatigue distress. Several factors stand out as probable causes for the intense and rapid process of fatigue, the main ones being: granulometry, cement content, and moisture content. In this way, a study was carried out to analyze the mechanical properties of C2 based on granulometry variation in relation to the cement and moisture content. It was noted that the mixture with the best joint performance was the one with the highest percentage of the sand fraction, highest cement content, and molded below the optimum moisture. Some recommendations were made for the mix design of C2, such as the definition of a granulometric range that considers the analysis of the aggregate large/small ratio in order to obtain a greater gain of maximum dry specific mass, as well as the use of cement contents above 4%, since below that the cementation will be insufficient. In addition, optimized ratios (aggregate + cement + water) should be defined by performing the mechanical analyzes listed in this paper, in order to select the best performance mixture to be applied in the road works. |
| first_indexed | 2024-12-14T01:28:58Z |
| format | Article |
| id | doaj.art-be3ff73d3b474287b739eaae4fe53088 |
| institution | Directory Open Access Journal |
| issn | 2237-1346 |
| language | English |
| last_indexed | 2024-12-14T01:28:58Z |
| publishDate | 2020-04-01 |
| publisher | Associação Nacional de Pesquisa e Ensino em Transportes (ANPET) |
| record_format | Article |
| series | Transportes |
| spelling | doaj.art-be3ff73d3b474287b739eaae4fe530882022-12-21T23:22:05ZengAssociação Nacional de Pesquisa e Ensino em Transportes (ANPET)Transportes2237-13462020-04-01281Influence of granulometry, cement content, and moisture in the mechanical performance of the cemented crushed stoneKharine Prado0Fernando Silva Albuquerque1Guilherme Bravo de Oliveira Almeida2Universidade Federal de SergipeUniversidade Federal de SergipeUniversidade Federal de SergipeThe Cemented Crushed Stone (C2, as the South African Classification) was widely used on the main high-traffic Brazilian highways in the 1970s and 1980s. However, it presents several limitations for its use in the road work related to the properties of the material and its almost fragile nature, since as soon as the large variations in the tensile strain take place along the loading cycle, critical and accelerated degradation also occur, leading to material fatigue distress. Several factors stand out as probable causes for the intense and rapid process of fatigue, the main ones being: granulometry, cement content, and moisture content. In this way, a study was carried out to analyze the mechanical properties of C2 based on granulometry variation in relation to the cement and moisture content. It was noted that the mixture with the best joint performance was the one with the highest percentage of the sand fraction, highest cement content, and molded below the optimum moisture. Some recommendations were made for the mix design of C2, such as the definition of a granulometric range that considers the analysis of the aggregate large/small ratio in order to obtain a greater gain of maximum dry specific mass, as well as the use of cement contents above 4%, since below that the cementation will be insufficient. In addition, optimized ratios (aggregate + cement + water) should be defined by performing the mechanical analyzes listed in this paper, in order to select the best performance mixture to be applied in the road works.https://revistatransportes.org.br/anpet/article/view/1861Cemented Crushed StoneMix DesignMechanical Performance Improvement. |
| spellingShingle | Kharine Prado Fernando Silva Albuquerque Guilherme Bravo de Oliveira Almeida Influence of granulometry, cement content, and moisture in the mechanical performance of the cemented crushed stone Transportes Cemented Crushed Stone Mix Design Mechanical Performance Improvement. |
| title | Influence of granulometry, cement content, and moisture in the mechanical performance of the cemented crushed stone |
| title_full | Influence of granulometry, cement content, and moisture in the mechanical performance of the cemented crushed stone |
| title_fullStr | Influence of granulometry, cement content, and moisture in the mechanical performance of the cemented crushed stone |
| title_full_unstemmed | Influence of granulometry, cement content, and moisture in the mechanical performance of the cemented crushed stone |
| title_short | Influence of granulometry, cement content, and moisture in the mechanical performance of the cemented crushed stone |
| title_sort | influence of granulometry cement content and moisture in the mechanical performance of the cemented crushed stone |
| topic | Cemented Crushed Stone Mix Design Mechanical Performance Improvement. |
| url | https://revistatransportes.org.br/anpet/article/view/1861 |
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