Performance Analysis of Compound Rubber and Steel Slag Filler Modified Asphalt Composite
A new treatment method of combined crumb rubber and steel slag modifier for asphalt binders was proposed in this work. The viscosity, rheological properties, and thermogravimetric analysis of modified asphalt mortar were then investigated. The modified asphalt composite was prepared in laboratory by...
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MDPI AG
2019-08-01
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| Online Access: | https://www.mdpi.com/1996-1944/12/16/2588 |
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| author | Yongjie Xue Hui Zhao Xintong Wei Yunya Niu |
| author_facet | Yongjie Xue Hui Zhao Xintong Wei Yunya Niu |
| author_sort | Yongjie Xue |
| collection | DOAJ |
| description | A new treatment method of combined crumb rubber and steel slag modifier for asphalt binders was proposed in this work. The viscosity, rheological properties, and thermogravimetric analysis of modified asphalt mortar were then investigated. The modified asphalt composite was prepared in laboratory by two steps. Rubber powder was firstly added into hot asphalt flux to make rubber modified asphalt (RA), and then RA binders were wrapped with steel slag powder by granulation machine to make compound rubber and steel slag filler modified asphalt composite (RSAC). Test results showed that the viscosity−temperature susceptibility of RSAC was superior to that of modified asphalt binder with only one additive. The softening point differences of RSAC was 2.1 °C. The complex modulus and phase angle were significantly influenced by the addition of steel slag fillers. Creep tests show that a better anti-permanent deformation performance of RSAC can be obtained, which means a better low temperature performance could be predictable. The CAM (Christensen-Anderson-Marasteanu) and Burgers models can be used to describe the change of complex modulus and viscous-elasticity performance of RSCA. The lower value of <i>m<sub>e</sub></i> (0.6344) and <i>R</i> (0.1862) from the CAM model indicated that RSAC was slightly related to the sensibility of frequency. The higher value of <i>λ<sub>∞</sub></i> and <i>E</i><sub>0</sub> of RSAC indicated a better ability of shear-creep resistance. |
| first_indexed | 2024-04-13T02:01:03Z |
| format | Article |
| id | doaj.art-e40f835e592343a7b8049b773f730440 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-13T02:01:03Z |
| publishDate | 2019-08-01 |
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| spelling | doaj.art-e40f835e592343a7b8049b773f7304402022-12-22T03:07:38ZengMDPI AGMaterials1996-19442019-08-011216258810.3390/ma12162588ma12162588Performance Analysis of Compound Rubber and Steel Slag Filler Modified Asphalt CompositeYongjie Xue0Hui Zhao1Xintong Wei2Yunya Niu3State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaA new treatment method of combined crumb rubber and steel slag modifier for asphalt binders was proposed in this work. The viscosity, rheological properties, and thermogravimetric analysis of modified asphalt mortar were then investigated. The modified asphalt composite was prepared in laboratory by two steps. Rubber powder was firstly added into hot asphalt flux to make rubber modified asphalt (RA), and then RA binders were wrapped with steel slag powder by granulation machine to make compound rubber and steel slag filler modified asphalt composite (RSAC). Test results showed that the viscosity−temperature susceptibility of RSAC was superior to that of modified asphalt binder with only one additive. The softening point differences of RSAC was 2.1 °C. The complex modulus and phase angle were significantly influenced by the addition of steel slag fillers. Creep tests show that a better anti-permanent deformation performance of RSAC can be obtained, which means a better low temperature performance could be predictable. The CAM (Christensen-Anderson-Marasteanu) and Burgers models can be used to describe the change of complex modulus and viscous-elasticity performance of RSCA. The lower value of <i>m<sub>e</sub></i> (0.6344) and <i>R</i> (0.1862) from the CAM model indicated that RSAC was slightly related to the sensibility of frequency. The higher value of <i>λ<sub>∞</sub></i> and <i>E</i><sub>0</sub> of RSAC indicated a better ability of shear-creep resistance.https://www.mdpi.com/1996-1944/12/16/2588modified asphaltcrumb rubbersteel slag fillerrheological propertiesCAM modelburgers model |
| spellingShingle | Yongjie Xue Hui Zhao Xintong Wei Yunya Niu Performance Analysis of Compound Rubber and Steel Slag Filler Modified Asphalt Composite Materials modified asphalt crumb rubber steel slag filler rheological properties CAM model burgers model |
| title | Performance Analysis of Compound Rubber and Steel Slag Filler Modified Asphalt Composite |
| title_full | Performance Analysis of Compound Rubber and Steel Slag Filler Modified Asphalt Composite |
| title_fullStr | Performance Analysis of Compound Rubber and Steel Slag Filler Modified Asphalt Composite |
| title_full_unstemmed | Performance Analysis of Compound Rubber and Steel Slag Filler Modified Asphalt Composite |
| title_short | Performance Analysis of Compound Rubber and Steel Slag Filler Modified Asphalt Composite |
| title_sort | performance analysis of compound rubber and steel slag filler modified asphalt composite |
| topic | modified asphalt crumb rubber steel slag filler rheological properties CAM model burgers model |
| url | https://www.mdpi.com/1996-1944/12/16/2588 |
| work_keys_str_mv | AT yongjiexue performanceanalysisofcompoundrubberandsteelslagfillermodifiedasphaltcomposite AT huizhao performanceanalysisofcompoundrubberandsteelslagfillermodifiedasphaltcomposite AT xintongwei performanceanalysisofcompoundrubberandsteelslagfillermodifiedasphaltcomposite AT yunyaniu performanceanalysisofcompoundrubberandsteelslagfillermodifiedasphaltcomposite |