[1] Li Xinghai, Huang Wei, Qian Zhendong,. Development of overlay tester for fracture test of asphalt mixture [J]. Journal of Southeast University (English Edition), 2013, 29 (3): 294-299. [doi:10.3969/j.issn.1003-7985.2013.03.012]
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Development of overlay tester for fracture test of asphalt mixture(
)
基于改进型overlay tester沥青混合料的断裂试验
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 29
- Issue:
- 2013 3
- Page:
- 294-299
- Research Field:
- Traffic and Transportation Engineering
- Publishing date:
- 2013-09-20
Info
- Title:
- Development of overlay tester for fracture test of asphalt mixture
- 基于改进型overlay tester沥青混合料的断裂试验
- Author(s):
- Li Xinghai; Huang Wei; Qian Zhendong
- Intelligent Transportation System Research Center, Southeast University, Nanjing 210096, China
- Keywords:
- asphalt mixture; fracture test; overlay tester; asphalt material performance tester(AMPT); fracture parameter
- PACS:
- U443.33
- DOI:
- 10.3969/j.issn.1003-7985.2013.03.012
- Abstract:
- To determine the fracture characteristics of asphalt mixture, a novel fracture test with modified loading modes, loading fixtures and the control system of the conventional overlay tester is implemented by the asphalt material performance tester(AMPT). In order to evaluate the validity of the proposed fracture test, four different loading rates, including 1, 2, 3 and 4 mm/min, are examined in the AMPT. The results indicate that the fracture behavior is similar to creep at a low loading rate and does not show significant marginal tail extension at a high loading rate. It clearly shows the phase of crack initiation, crack propagation and fracture at a loading rate of 3 mm/min. Besides, eight fracture parameters, such as fracture energy, tensile strength and tensile modulus, are applied to evaluate the fracture characteristics of asphalt mixture. Development of the overlay tester for the fracture test of asphalt mixture can be considered as a new fracture test of asphalt mixture.
- 为获得沥青混合料的断裂特性, 改进了传统overlay tester试验的加载方式、试验模具和控制系统等, 提出了在沥青混合料性能试验机(AMPT)上进行沥青混合料断裂试验的方法.为验证该新型断裂试验方法的有效性, 拟定了1, 2, 3和4 mm/min 4个断裂加载速率进行验证.试验结果表明:在低速率加载条件下, 沥青混合料呈现蠕变特征;在高速率加载条件下, 沥青混合料断裂扩展特性不显著;在中间速率3 mm/min加载条件下, 试验能够有效区分断裂的裂缝萌生、裂缝扩展和完全断裂的3个断裂过程.此外, 提出了断裂能、拉伸强度和拉伸模量等8个断裂参数评价沥青混合料的断裂特性.改进后的overlay tester试验, 为研究沥青混合料断裂特性提供了一个新的方法.
References:
[1] Majidzadeh K, Kaufmann E M, Ramsamooj D V. Application of fracture mechanics in the analysis of pavement fatigue [C]//Proceedings of the Association of Asphalt Pavement Technologists. Oklahoma City, OK, USA, 1971, 40: 227-246. [2] Song S H, Paulino G H, Buttlar W G. A bilinear cohesive zone model tailored for fracture of asphalt concrete considering visco-elastic bulk material[J]. Engineering Fracture Mechanics, 2006, 73(18): 2829-2847.
[3] Kim H, Buttlar W G. Finite element cohesive fracture modeling of airport pavements at low temperatures[J]. Cold Regions Science and Technology, 2009, 57(2/3): 123-130.
[4] Huang Xiaoming, Xiao Yimin, Zhang Yuqing. Viscoelastic crack propagation in asphalt mixtures[J]. Journal of Southeast University: Natural Science Edition, 2009, 39(3): 587-591.(in Chinese)
[5] Walubita L F, Jamison B P, Das G, et al. Search for a laboratory test to evaluate crack resistance of hot-mix asphalt[J]. Journal of the Transportation Research Board, 2011, 2210: 73-80.
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[7] Wagoner M P, Buttlar W G, Paulino G H. Development of a single-edge notched beam test for asphalt concrete mixtures[J]. Journal of Testing and Evaluation, 2005, 33(6): 1-9.
[8] Wagoner M P, Buttlar W G, Paulino G H. Disk-shaped compact tension test for asphalt concrete fracture[J]. Society for Experimental Mechanics, 2005, 45(3): 270-277.
[9] Germann F P, Lytton R L. Methodology for predicting the reflective cracking life of asphalt concrete overlays[R]. Texas: Texas A & M University, 1979.
[10] Zhou Fujie, Scullion T. Overlay tester: a simple performance test for thermal reflective cracking [C]//Proceedings of the Association of Asphalt Pavement Technologists. Long Beach, CA, USA, 2005, 74: 443-484.
Memo
- Memo:
-
Biographies: Li Xinghai(1983—), male, graduate; Qian Zhendong(corresponding author), female, doctor, professor, qianzd@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.51178114), the Chinese Western Transportation Construction Technology Project of Transportation Ministry(No.2009318000086).
Citation: Li Xinghai, Huang Wei, Qian Zhendong. Development of overlay tester for fracture test of asphalt mixture[J].Journal of Southeast University(English Edition), 2013, 29(3):294-299.[doi:10.3969/j.issn.1003-7985.2013.03.012]