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作者:

Jiao, Yubo (Jiao, Yubo.) (学者:焦峪波) | Fu, Liuxu (Fu, Liuxu.) | Shan, Wenchen (Shan, Wenchen.) | Liu, Shiqi (Liu, Shiqi.)

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EI Scopus SCIE

摘要:

Pervious asphalt (PA) is an effective pavement material to alleviate surface runoff and hot island effect in city. Acoustic emission (AE) monitoring can realize the damage characterization of materials to avoid their premature failure. The purpose of this study is to demonstrate the damage fracture process of PA under compression and splitting using AE parameters. Firstly, PA specimens were prepared by Marshall compaction method and AE testing were conducted for specimens under compression and splitting. Corresponding AE signals were recorded and interpreted to obtain the parameters including signal amplitude, duration, count, signal energy and rise time. Secondly, the evolutions of AE parameters, cumulative AE parameters and load versus time were obtained and analyzed to characterize the fracture processes of specimens under compression and splitting. Finally, temperature effects on damage fracture of PA were considered and demonstrated. The results revealed that AE parameters could realize the classification of different damage stages for PA specimens under compression and splitting. AE energy presented the most favorable ability for damage fracture characterization in both compression and splitting tests. Cumulative AE parameters exhibited generally satisfactory discriminating results except for some demarcation points. Changes in mechanical performances of PA specimens caused by temperature effect could be clearly identified through AE parameters. It can be concluded that AE possesses great potential for damage fracture characterization of PA material.

关键词:

Acoustic emission Parameter analysis Fracture characterization Temperature effect Pervious asphalt

作者机构:

  • [ 1 ] [Jiao, Yubo]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing, Peoples R China
  • [ 2 ] [Fu, Liuxu]Southeast Univ, Sch Transportat, Nanjing, Jiangsu, Peoples R China
  • [ 3 ] [Shan, Wenchen]Chongqing Univ, Sch Civil Engn, Chongqing, Peoples R China
  • [ 4 ] [Liu, Shiqi]Jilin Univ, Sch Transportat, Changchun, Jilin, Peoples R China

通讯作者信息:

  • 焦峪波

    [Jiao, Yubo]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing, Peoples R China

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来源 :

ENGINEERING FRACTURE MECHANICS

ISSN: 0013-7944

年份: 2019

卷: 210

页码: 147-159

5 . 4 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:136

JCR分区:1

被引次数:

WoS核心集被引频次: 40

SCOPUS被引频次: 45

ESI高被引论文在榜: 0 展开所有

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