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Development of a Fracture Mechanics-Based Asphalt Binder Test Method for Low Temperature Performance Prediction;Final rept. Jul 01-Jan 04

机译：基于断裂力学的沥青粘结剂低温性能预测试验方法的研制;最终进展。 7月1日至1月4日

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This project developed and evaluated a test method based on fracture mechanics, for predicting low temperature performance of asphalt binders. A low-temperature yield test was developed and validated using asphalt binders modified with commercial polymer modifiers along with a simple low-temperature fracture toughness test for asphalt binders. The test measures fracture toughness and fracture energy values on three-point bend specimens with aluminum inserts. The use of inserts significantly reduced the sample amount requirement (less than 3 grams) and showed an improvement over the current SHRP procedures. The effect of sample width on fracture toughness was investigated to ascertain the plane strain condition. A survey of Highways 118 and 17 test sections collect data on pavement cracking for use in establishing tests and asphalt binder performance in the field was conducted and fracture tests on unaged binders and aged binders from these highways were performed. Results indicate a significant improvement of the IDEA test over SHRP tests for fracture and cracking predictions.

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作者
Hesp, S.;
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年度 2004
页码 p.1-152
总页数 152
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Binders; Asphalt pavements; Fracture mechanics; Test methods; Fracture toughness; Low temperature; Cracking; Prediction; Polymer modifiers; Literature reviews; Materials;

机译：粘合剂;沥青路面;断裂力学;试验方法;断裂韧性;低温;开裂;预测;聚合物改性剂;文献综述;材料;

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专利

1. Implementation of nondestructive testing and mechanical performance approaches to assess low temperature fracture properties of asphalt binders [J] . Salman Hakimzadeh, Behzad Behnia, William G. Buttlar, International Journal of Pavement Research and Technology . 2017,第3期

机译：实施无损检测和力学性能方法以评估沥青粘合剂的低温断裂性能
2. development of new standard test methods for characterizing low temperature properties of asphalt binders [J] . RAJ DONGRE, JOHN DANGELO ASTM Standardization News . 2003,第11期

机译：用于表征沥青粘合剂低温性能的新标准试验方法的研制
3. Low-temperature performance prediction of asphalt mixtures used for LLP—new approach based on fundamental test methods and numerical modeling [J] . M. WISTUBA, R. LACKNER, R. BLAB, The international journal of pavement engineering . 2006,第2期

机译：LLP用沥青混合料的低温性能预测-基于基本试验方法和数值模拟的新方法
4. Fracture Energy and Critical Crack Tip Opening Displacement: Fracture Mechanics-Based Failure Criteria for Low-Temperature Grading of Asphalt Binders [C] . Sushanta D. Roy, Simon A.M. Hesp Annual conference of the Canadian Technical Asphalt Association . 2001

机译：断裂能量和临界裂纹尖端开口位移：基于骨折力学的沥青粘合剂低温分级的故障标准
5. Evaluation of the factors that affect the fracture resistance of asphalt mixtures at low temperatures using mechanical testing and acoustic emission methods. [D] . Li, Xinjun. 2006

机译：使用机械测试和声发射方法评估在低温下影响沥青混合料抗断裂性的因素。
6. High-Temperature Performance Evaluation of Asphaltenes-Modified Asphalt Binders [O] . Amirhossein Ghasemirad, Nura Bala, Leila Hashemian 2020

机译：沥青质改性沥青粘合剂的高温性能评价
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. Liquefaction Mitigation Using Vertical Composite Drains: Full Scale Testing;Final rept. Jul 01-Jan 04 [R] . Rollins, K. M., Anderson, J. K. 2004

机译：使用垂直复合排水的液化缓解：全面测试;最终的评估。 7月1日至1月4日

Development of a Fracture Mechanics-Based Asphalt Binder Test Method for Low Temperature Performance Prediction;Final rept. Jul 01-Jan 04

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