Study on Mechanical and Viscoelastic Properties of Asphalt Mixture Modified by Diatomite and Crumb Rubber Particles
| Autor: | Xin Xu, Jinxin Hao, Zhengwei Gu, Chunyu Liang, Hao Zhang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
creep tests
Materials science asphalt mixture 0211 other engineering and technologies 02 engineering and technology mechanical properties lcsh:Technology Viscoelasticity lcsh:Chemistry crumb rubber particles Natural rubber diatomite 021105 building & construction General Materials Science Crumb rubber Composite material lcsh:QH301-705.5 Instrumentation Fluid Flow and Transfer Processes Aggregate (composite) lcsh:T Process Chemistry and Technology General Engineering viscoelastic properties 021001 nanoscience & nanotechnology lcsh:QC1-999 Computer Science Applications lcsh:Biology (General) lcsh:QD1-999 Creep lcsh:TA1-2040 Asphalt visual_art visual_art.visual_art_medium Particle Gradation lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology lcsh:Physics |
| Zdroj: | Applied Sciences Volume 10 Issue 23 Applied Sciences, Vol 10, Iss 8748, p 8748 (2020) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app10238748 |
| Popis: | To optimize the properties of asphalt mixtures and make full use of waste rubber tires, diatomite and crumb rubber particles were applied to reinforce the asphalt mixtures in this study. The rutting tests, the three-point bending tests, the freeze-thaw splitting tests, and the uniaxial compression creep tests were performed to analyze the effects of asphalt types and aggregate gradation on the pavement properties of diatomite and crumb rubber particles reinforced asphalt mixtures (DRPAM). Subsequently, the creep and relaxation characteristics of DRPAM were analyzed by the Burgers model, the modified Burgers model, the second-order extensive Maxwell model, and the Scott&ndash Blair model. The results show that rubber particles and diatomite can reinforce the high temperature, low temperature, and viscoelastic properties of asphalt mixtures, although the improvement effect is weaker than styrene-butadiene-styrene (SBS). Consequently, it is concluded that rubber particle and diatomite compound modified asphalt mixture with suspension dense gradation and SBS binder will have better performance. |
| Databáze: | OpenAIRE |
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