Attenuation behavior of pavement concrete under rolling load and hydrodynamic pressure coupling
In addition to rolling vehicle load, the damage of hydrodynamic pressure to pavement concrete cannot be ignored. To investigate the attenuation behavior of pavement concrete under the coupling effect of rolling load and hydrodynamic pressure, an indoor-accelerated loading test was conducted. The decay rules of strength, dynamic elastic modulus, and impermeability were studied, and the correlation between pore structure and macro-properties was analyzed. The results show that hydrodynamic pressure has significant additional degradation effect on strength and dynamic elastic modulus at the later stage of loading (more than 100 thousand times). The chloride permeability coefficient increases in parabolic shape under rolling load, whereas it amplifies exponentially under the coupling of load and hydrodynamic pressure. The pore structure of pavement concrete presents a “coarsening - refining” trend under the coupling effect. The attenuation of flexural strength and dynamic elastic modulus has great correlation with the total aperture area, mean pore diameter, and area median aperture, and the chloride diffusion coefficient is greatly affected by porosity and total aperture area.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/09500618
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Supplemental Notes:
- © 2022 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
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Authors:
- Li, Zhennan
- Shen, Aiqin
- Liu, Yiwei
- Guo, Yinchuan
- Zheng, Panfei
- Publication Date: 2022-2-28
Language
- English
Media Info
- Media Type: Web
- Features: Figures; Photos; References; Tables;
- Pagination: 126344
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Serial:
- Construction and Building Materials
- Volume: 321
- Issue Number: 0
- Publisher: Elsevier
- ISSN: 0950-0618
- Serial URL: http://www.sciencedirect.com/science/journal/09500618?sdc=1
Subject/Index Terms
- TRT Terms: Attenuation (Engineering); Concrete pavements; Hydrodynamic pressure; Live loads
- Subject Areas: Highways; Maintenance and Preservation; Pavements;
Filing Info
- Accession Number: 01837558
- Record Type: Publication
- Files: TRIS
- Created Date: Feb 28 2022 9:40AM