| 不同掺加剂大粒径沥青碎石黏弹性研究 |
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| 引用本文： | 王展亮、李惠霞、廖仁生.不同掺加剂大粒径沥青碎石黏弹性研究[J].福建工程学院学报,2021,0(1):56-60. |
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| 作者姓名： | 王展亮、李惠霞、廖仁生 |
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| 作者单位： | 福建工程学院土木工程学院 |
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| 摘 要： | 为了研究掺加橡胶粉或玻璃纤维对大粒径沥青碎石黏弹性能的影响，通过单轴静载蠕变试验，得到不同荷载和不同沥青用量下的大粒径沥青碎石应变-时间曲线，并采用Burger模型对其蠕变柔量进行表述，得出以下结论:当w(沥青)=3.3%时，掺有橡胶粉或玻璃纤维的大粒径沥青碎石性能最佳，相较于掺加玻璃纤维的大粒径沥青碎石，掺加橡胶粉的大粒径沥青碎石抵抗瞬时抗变形能力较弱，抵抗永久变形能力较强。随着荷载的增加，掺加玻璃纤维或橡胶粉的大粒径沥青碎石抵抗瞬时变形能力和永久变形能力也逐渐增强。
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| 关 键 词： | 大粒径沥青碎石 橡胶粉 玻璃纤维 永久变形 黏弹性 |
Study on the viscoelasticity of large-size asphalt macadam with different additives |
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| WANG Zhanliang,LI Huixia,LIAO Rensheng.Study on the viscoelasticity of large-size asphalt macadam with different additives[J].Journal of Fujian University of Technology,2021,0(1):56-60. |
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| Authors: | WANG Zhanliang LI Huixia LIAO Rensheng |
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| Affiliation: | School of Civil Engineering, Fujian University of Technology |
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| Abstract: | In order to study the effects of adding rubber powder or glass fiber on the viscoelastic properties of large-size asphalt macadam, uniaxial static load creep tests were conducted, the strain-time of large-size asphalt macadam under different loads and different asphalt content was obtained. The Burger model was used to express its creep compliance, and the following conclusions were drawn: when the amount of asphalt is 3.3%, the performance of large-size asphalt macadam mixed with rubber powder or glass fiber is the best. The large-diameter asphalt macadam with glass fiber and the large-diameter asphalt macadam with rubber powder have weak resistance to instantaneous deformation and strong resistance to permanent deformation. With the increase of load, the resistance to instantaneous deformation and permanent deformation of the large-size asphalt macadam has gradually improved. |
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| Keywords: | large-size asphalt macadam rubber powder glass fiber permanent deformation viscoelasticity |
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