The Correlation between Pore Structure and Macro Durability Performance of Road Concrete under Loading and Freeze-Thaw and Drying-Wetting Cycles
The grey correlation theory and multiple regression method are used to reveal macro performance degradation rules of road concrete under loading and freeze-thaw and drying-wetting cycles; then the correlation between mesoscopic pore structure and residual strength and antifreezing index of concrete...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/5015169 |
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| author | Sheng-bo Zhou Jun-lin Liang Wei-an Xuan Ye Qiu |
| author_facet | Sheng-bo Zhou Jun-lin Liang Wei-an Xuan Ye Qiu |
| author_sort | Sheng-bo Zhou |
| collection | DOAJ |
| description | The grey correlation theory and multiple regression method are used to reveal macro performance degradation rules of road concrete under loading and freeze-thaw and drying-wetting cycles; then the correlation between mesoscopic pore structure and residual strength and antifreezing index of concrete is analyzed. Under the freeze-thaw and drying-wetting cycles with 50% loading level, the pore structure parameters that influence concrete strength show the following sequence: fractal dimension > most probable pore size > porosity > less harmful pore. The correlation between strength and pore parameters can be represented with multiple nonlinear equations. A negative correlation is shown between strength and fractal dimension and most probable pore size. Conversely, a positive correlation is shown between strength, porosity, and less harmful pore. Under the freeze-thaw and drying-wetting cycles with 80% loading level, the pore structure parameters that influence concrete strength show another sequence: fractal dimension > porosity > less harmful pore > most probable pore size. The correlation between antifreezing index and pore parameters should be described with multiple linear equations. The relative dynamic elastic modulus shows a positive correlation to most probable pore size, pore surface area, and porosity but a negative correlation to less harmful pore and pore spacing coefficient. |
| format | Article |
| id | doaj-art-eb70a14ba81b4592832c2e6834f2f650 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-eb70a14ba81b4592832c2e6834f2f6502025-02-03T01:07:34ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/50151695015169The Correlation between Pore Structure and Macro Durability Performance of Road Concrete under Loading and Freeze-Thaw and Drying-Wetting CyclesSheng-bo Zhou0Jun-lin Liang1Wei-an Xuan2Ye Qiu3Guangxi Key Laboratory of Road Structure and Materials, Guangxi Transportation Research Institute Co., Ltd., Nanning 530007, ChinaSchool of Civil Engineering & Architecture, Guangxi University, Nanning 530004, ChinaGuangxi Key Laboratory of Road Structure and Materials, Guangxi Transportation Research Institute Co., Ltd., Nanning 530007, ChinaCollege of Civil and Transportation Engineering, Hohai University, Nanjing 210098, ChinaThe grey correlation theory and multiple regression method are used to reveal macro performance degradation rules of road concrete under loading and freeze-thaw and drying-wetting cycles; then the correlation between mesoscopic pore structure and residual strength and antifreezing index of concrete is analyzed. Under the freeze-thaw and drying-wetting cycles with 50% loading level, the pore structure parameters that influence concrete strength show the following sequence: fractal dimension > most probable pore size > porosity > less harmful pore. The correlation between strength and pore parameters can be represented with multiple nonlinear equations. A negative correlation is shown between strength and fractal dimension and most probable pore size. Conversely, a positive correlation is shown between strength, porosity, and less harmful pore. Under the freeze-thaw and drying-wetting cycles with 80% loading level, the pore structure parameters that influence concrete strength show another sequence: fractal dimension > porosity > less harmful pore > most probable pore size. The correlation between antifreezing index and pore parameters should be described with multiple linear equations. The relative dynamic elastic modulus shows a positive correlation to most probable pore size, pore surface area, and porosity but a negative correlation to less harmful pore and pore spacing coefficient.http://dx.doi.org/10.1155/2017/5015169 |
| spellingShingle | Sheng-bo Zhou Jun-lin Liang Wei-an Xuan Ye Qiu The Correlation between Pore Structure and Macro Durability Performance of Road Concrete under Loading and Freeze-Thaw and Drying-Wetting Cycles Advances in Materials Science and Engineering |
| title | The Correlation between Pore Structure and Macro Durability Performance of Road Concrete under Loading and Freeze-Thaw and Drying-Wetting Cycles |
| title_full | The Correlation between Pore Structure and Macro Durability Performance of Road Concrete under Loading and Freeze-Thaw and Drying-Wetting Cycles |
| title_fullStr | The Correlation between Pore Structure and Macro Durability Performance of Road Concrete under Loading and Freeze-Thaw and Drying-Wetting Cycles |
| title_full_unstemmed | The Correlation between Pore Structure and Macro Durability Performance of Road Concrete under Loading and Freeze-Thaw and Drying-Wetting Cycles |
| title_short | The Correlation between Pore Structure and Macro Durability Performance of Road Concrete under Loading and Freeze-Thaw and Drying-Wetting Cycles |
| title_sort | correlation between pore structure and macro durability performance of road concrete under loading and freeze thaw and drying wetting cycles |
| url | http://dx.doi.org/10.1155/2017/5015169 |
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