EVALUATION OF FATIGUE PROPERTIES OF BITUMINOUS BINDERS

机译：两种粘合剂的疲劳性能评估

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The original asphalt binder Superpave specification criterion for fatigue, G~*sinδ, has received considerable criticism as a specification requirement. A time sweep using the dynamic shear rheometer (DSR) has been proposed as an alternative test method for the Superpave specification. The "modulus versus number of cycles" relationships generated in the time sweep test have the appearance of typical fatigue curves. In this paper, the data was examined with respect to its validity as a measure of fatigue. Special attention was given to parameters that affect or could be confounded with "true" fatigue response: apparent fatigue can generate phenomena susceptible to interfere with the fatigue behavior: 1. Initial value of the complex modulus of the material. Behavior in repeated shear depends markedly on the initial stiffness of the binder. If the initial stiffness is low, damage can occur as a result of plastic flow at the outer edge of the asphalt binder. 2. The influence of the rest periods at different time of the test. 3. The drop of the modulus at the beginning of the curves. 4. Steric hardening occurring with time, apparently even during loading, may have some effect on fatigue like when the time sweep is applied over an extended period of time. 5. Binder type: this procedure showed significant differences in the behavior of various modified binders.

机译：最初的疲劳用沥青粘结剂Superpave规格标准G〜*sinδ作为规格要求受到了广泛的批评。已经提出使用动态剪切流变仪（DSR）进行时间扫描作为Superpave规范的替代测试方法。在时间扫描测试中生成的“模数与循环数”关系具有典型的疲劳曲线。在本文中，对数据进行了有效性检验，以衡量疲劳程度。特别注意那些会影响“真实”疲劳响应或可能与“真实”疲劳响应混淆的参数：表观疲劳会产生易于干扰疲劳行为的现象：1.材料的复数模量的初始值。重复剪切的行为明显取决于粘合剂的初始刚度。如果初始刚度低，则由于在沥青粘合剂外边缘的塑性流动会导致损坏。 2.休息时间在测试的不同时间的影响。 3.曲线开始处的模量下降。 4.显然，即使在加载过程中，随着时间的推移发生的硬化也会对疲劳产生一定的影响，例如在较长的时间内施加时间扫描时。 5.粘合剂类型：该程序显示出各种改性粘合剂的行为存在显着差异。

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《6th International RILEM Symposium on Performance Testing and Evaluation of Bituminous Materials, (PTEBM'03) Pt.1 Apr 14-16, 2003 Zurich, Switzerland》|2003年|p.110-116|共7页
会议地点 Zurich(CH);Zurich(CH)
作者
Jean-Pascal Planche; David A. Anderson; Gilles Gauthier; Yann M. Le Hir; Didier Martin;
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TotalFinaElf, FRANCE;

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原文格式 PDF
正文语种 eng
中图分类建筑科学;
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专利

1. Evaluation of fatigue properties of bituminous binders [J] . J.-P. Planche, D. A. Anderson, G. Gauthier, Materials and structures . 2004,第269期

机译：沥青粘合剂的疲劳性能评估
2. Fatigue and healing properties of nano-reinforced bituminous binders [J] . Ezio Santagata, Orazio Baglieri, Lucia Tsantilis, International Journal of Fatigue . 2015,第nova期

机译：纳米增强沥青粘合剂的疲劳和愈合性能
3. Fatigue properties of bituminous binders reinforced with carbon nanotubes [J] . Ezio Santagata, Orazio Baglieri, Lucia Tsantilis, The international journal of pavement engineering . 2015,第1a2期

机译：碳纳米管增强的沥青粘合剂的疲劳性能
4. EVALUATION OF THE FATIGUE PROPERTIES OF BITUMINOUS BINDERS USINGA NEW TYPE OF SPECIMEN [C] . Q.T.Liu, S.P.Wu, C.H.Liu, 第二届国际非均质材料力学会议（The Second International Conference on Heterogeneous Material Mechanics）论文集 . 2008

机译：用新型标本评估有毒粘合剂的疲劳性能
5. Evaluation of the Properties of Rubberized Asphalt Binders and Mixtures [D] . Jadidirendi, Kazem. 2017

机译：橡胶沥青混合料和混合物的性能评估
6. Analysis of Fatigue and Healing Properties of Conventional Bitumen and Bio-Binder for Road Pavements [O] . Elena Gaudenzi, Fabrizio Cardone, Xiaohu Lu, 2020

机译：常规沥青和生物粘结剂在道路路面上的疲劳和愈合性能分析
7. Stone Matrix Asphalt (SMA) is a gap-graded mix that is gaining popularity worldwide. Generally, gap graded mixes are thought to be weak in fatigue resistance. In this study, cellulose fibers were pre-blended in PG64-22 binder with fiber proportions of 0.2%, 0.4%, 0.6%, 0.8% and 1.0% by weight of aggregates. The fiber-modified binder showed improved rheological properties and showed that the PG64-22 binder can be modified and raised to PG70-22 grade. The cellulose oil palm fiber (COPF) was found to improve the diameteral fatigue performance of SMA design mix. The fatigue life increased to a maximum at a fiber content of about 0.6%, whilst the tensile stress and stiffness also showed a similar trend in performance. The initial strains of the mix were lowest at a fiber content of 0.6%. [O] . Ratnasamy Muniandy, Bujang B.K. Huat 2006

机译：石基沥青（SMA）是一种间隙分级的混合物，在全球范围内越来越受欢迎。通常，间隙梯度混合料被认为抗疲劳性较弱。在这项研究中，将纤维素纤维预先掺入PG64-22粘合剂中，纤维比例为集料重量的0.2％，0.4％，0.6％，0.8％和1.0％。纤维改性的粘合剂表现出改善的流变性能，并表明PG64-22粘合剂可以被改性并提高到PG70-22级。发现纤维素油棕纤维（COPF）可以改善SMA设计混合物的直径疲劳性能。在约0.6％的纤维含量下，疲劳寿命增加到最大值，而拉伸应力和刚度也表现出相似的性能趋势。混合物的初始应变在纤维含量为0.6％时最低。
8. Evaluation of Lignin as an Antioxidant in Asphalt Binders and Bituminous Mixtures, Technical Summary. [R] . Hobson, C. 2017

机译：木质素作为沥青粘合剂和沥青混合物中抗氧化剂的评价，技术摘要。

EVALUATION OF FATIGUE PROPERTIES OF BITUMINOUS BINDERS

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