Mechanical properties of HMA mixes using crumb-rubber modified binders

机译：使用碎橡胶改性粘合剂的HMA混合物的机械性能

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摘要

This research aims at evaluating the effects of crumb rubber and shale-oil residue on some mechanical properties of HMA mixes. Eight HMA mixes were produced, using asphalt binders compounded with different proportions of crumb rubber and shale oil residue, in order to evaluate the effect of these two modifiers on resilient modulus and tensile strength values. The overall results pointed out that both crumb rubber and shale-oil residue reduce resilient modulus, but oil shows a more expressive effect. Both crumb rubber and shale-oil residue reduce tensile strength with similar intensity. Response-surface analysis indicated that crumb-rubber modified binders formulated with smaller proportions of crumb rubber and shale-oil residue lead to HMA mixtures of higher tensile strength values.

机译：这项研究旨在评估碎屑橡胶和页岩油残留物对HMA混合物某些力学性能的影响。为了评估这两种改性剂对弹性模量和拉伸强度值的影响，使用混合了不同比例的碎屑橡胶和页岩油渣的沥青粘合剂生产了八种HMA混合物。总体结果指出，碎屑橡胶和页岩油残留物均会降低弹性模量，但油显示出更富表现力的效果。碎屑橡胶和页岩油残留物均以相似的强度降低拉伸强度。响应表面分析表明，用较小比例的碎屑橡胶和页岩油残渣配制的碎屑橡胶改性的粘合剂会产生较高的拉伸强度值的HMA混合物。

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来源
《Asphalt Rubber 2009 Conference(2009国际橡胶沥青大会）》|2009年|519-540|共22页
会议地点 Nanjing(CN);Nanjing(CN)
作者
Fernanda Pilati; Adalberto Leandro Faxina; Ana Paula Furlan; Glauco Tulio Pessa Fabbri; Antonio Carlos Gigante;
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作者单位

Department of Transportation, Sao Carlos Engineering School Sao Paulo University, Sao Carlos, Brazil;

Department of Transportation, Sao Carlos Engineering School Sao Paulo University, Sao Carlos, Brazil;

Department of Transportation, Sao Carlos Engineering School Sao Paulo University, Sao Carlos, Brazil;

Department of Transportation, Sao Carlos Engineering School Sao Paulo University, Sao Carlos, Brazil;

Department of Transportation, Sao Carlos Engineering School Sao Paulo University, Sao Carlos, Brazil;

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正文语种 eng
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关键词
crumb-rubber modified binder; shale-oil residue; resilient modulus; tensile strength; statistical analysis;

机译：碎屑橡胶改性粘结剂;页岩油渣;回弹模量;拉伸强度;统计分析;

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专利

1. Fatigue and Fracture Properties of Asphalt Mixes Containing Low Content of Crumb-Rubber Modifier [J] . Yanlong Liang, John T. Harvey, Rongzong Wu, Journal of materials in civil engineering . 2020,第10期

机译：含有低含量的橡胶改性剂含量的沥青混合的疲劳和断裂性能
2. Dynamic mechanical characterization of asphalt concrete mixes with modified asphalt binders [J] . S. Anjan kumar, A. Veeraragavan Materials Science and Engineering . 2011,第21期

机译：改性沥青结合料对沥青混凝土混合料的动态力学特性
3. Porous asphalt mixture with alternative aggregates and crumb-rubber modified binder at reduced temperature [J] . Lastra-Gonzalez Pedro, Calzada-Perez Miguel A., Castro-Fresno Daniel, Construction and Building Materials . 2017,第sepa30期

机译：多孔沥青混合料，具有替代骨料和碎橡胶改性的粘合剂，可降低温度
4. Mechanical properties of HMA mixes using crumb-rubber modified binders [C] . Asphalt rubber conference . 2009

机译：使用Crumb-橡胶改性粘合剂的HMA混合物的力学性能
5. Characterization of modified binder using two co-polymers and its performance in asphalt mixes. [D] . Ilias, Mohammad. 2011

机译：使用两种共聚物的改性粘合剂的表征及其在沥青混合料中的性能。
6. Mechanical Performance of Warm-Mixed Porous Asphalt Mixture with Steel Slag and Crumb-Rubber–SBS Modified Bitumen for Seasonal Frozen Regions [O] . Yongchun Cheng, Chao Chai, Chunyu Liang, 2019

机译：钢渣和碎橡胶-SBS改性沥青温拌多孔沥青混合料在季节性冰冻地区的力学性能
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. Laboratory Evaluation of Crumb-Rubber Modified (CRM) Binders and Mixtures [R] . Estakhri, C. K., Rebala, S., Little, D. N. 1993

机译：碎屑 - 橡胶改性（CRm）粘合剂和混合物的实验室评价

Mechanical properties of HMA mixes using crumb-rubber modified binders

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