Temperature dependency analysis of the fracture characteristics of semi-flexible pavement (SFP) mixtures using acoustic emission technique

级配 声发射 材料科学 薄泥浆 开裂 复合材料 骨料(复合) 断裂(地质) 水泥 联锁 收缩率 中尺度气象学 极限抗拉强度 沥青 岩土工程 结构工程 计算机科学 工程类 地质学 气候学 计算机视觉
作者
Xing Cai,Zhen Leng,Prabin Kumar Ashish,Chenguang Shi,Jun Yang,Minghui Gong
出处
期刊:International Journal of Pavement Engineering [Taylor & Francis]
卷期号:24 (1) 被引量:7
标识
DOI:10.1080/10298436.2023.2201903
摘要

ABSTRACTABSTRACTThe poor cracking resistance of Semi-Flexible Pavement (SFP) mixture has limited its wider application. Particularly, the dual skeletal interlocking structure makes its damage process complicated. Its fracture process is expected to change with aggregate gradation and temperature, but the relevant knowledge is very limited. Thus, this study aims to investigate the effects of the two factors on the fracture characteristics of SFP using the acoustic emission (AE) technique and X-ray computed tomography (CT) approach. SFP specimens with three gradations (the target cement grout volume is 22%, 25% and 30%, respectively) were fabricated and subjected to the split tensile tests at three different temperatures (−10°C, 10°C and 25°C). Machine learning-based techniques were applied to analyze the AE signals to improve the understanding of the mesoscale damage process. Although the analysis of macro mechanical parameters showed the diminishing effect of temperature dependency on the fracture process with an increase in cement grout volume, the effect was found to be still significant based on the mesoscale analysis. Besides, it was found that the damage process transferred from the main crack going through cement to distributed meso-cracks in asphalt and cement with the temperature increase.KEYWORDS: Semi-flexible pavement materialsplitting processfracture characteristicdamage modeacoustic emissionpattern recognition Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe work described in this paper was partially supported by a grant from the National Key R&D Program of China (No.: 2021YFB2601000), Research Grants Council of the Hong Kong Special Administrative Region, China (PolyU 15204022 for GRF project funded in 2022/23 Exercise) and the National Natural Science Foundation of China (No. 52208283).
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
没有昵称发布了新的文献求助10
刚刚
boltos发布了新的文献求助10
1秒前
1秒前
zhongxuejie完成签到,获得积分20
2秒前
2秒前
PengHu完成签到,获得积分10
2秒前
领导范儿应助g123采纳,获得10
4秒前
4秒前
4秒前
4秒前
6秒前
6秒前
shatang完成签到,获得积分10
7秒前
duna发布了新的文献求助10
8秒前
8秒前
9秒前
量子星尘发布了新的文献求助10
9秒前
玉玲子LIN发布了新的文献求助10
10秒前
子云完成签到,获得积分10
10秒前
CC完成签到,获得积分10
11秒前
sciiiiii发布了新的文献求助10
11秒前
丘比特应助啦啦啦采纳,获得10
11秒前
小蘑菇应助俏皮的白柏采纳,获得10
13秒前
新星发布了新的文献求助10
13秒前
二重音完成签到,获得积分10
14秒前
duna完成签到,获得积分20
15秒前
16秒前
科研助手6应助Liao采纳,获得10
16秒前
橘子海发布了新的文献求助10
16秒前
善学以致用应助liherong采纳,获得30
17秒前
18秒前
18秒前
19秒前
爆米花应助hino采纳,获得10
19秒前
orixero应助猪猪hero采纳,获得10
19秒前
单纯的思松发布了新的文献求助100
19秒前
Lucas应助ZYao65采纳,获得10
19秒前
书霂完成签到,获得积分10
19秒前
simey完成签到,获得积分10
20秒前
lauhoihung发布了新的文献求助10
22秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3988827
求助须知:如何正确求助?哪些是违规求助? 3531183
关于积分的说明 11252671
捐赠科研通 3269809
什么是DOI,文献DOI怎么找? 1804780
邀请新用户注册赠送积分活动 881885
科研通“疑难数据库(出版商)”最低求助积分说明 809021