Influence of Water Pressure on the Mechanical Properties of Concrete after Freeze-Thaw Attack under Dynamic Triaxial Compression State
Joint Authors
Wang, Ruijun
Li, Yan
Li, Yang
Xu, Fan
Li, Xiaotong
Fu, Tenghuan
Source
Advances in Materials Science and Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-02-04
Country of Publication
Egypt
No. of Pages
12
Abstract EN
This study aims at determining the effect of water pressure on the mechanical properties of concrete subjected to freeze-thaw (F-T) attack under the dynamic triaxial compression state.
Two specimens were used: (1) a 100 mm × 100 mm × 400 mm prism for testing the loss of mass and relative dynamic modulus of elasticity (RDME) after F-T cycles and (2) cylinders with a diameter of 100 mm and a height of 200 mm for testing the dynamic mechanical properties of concrete.
Strain rates ranged from 10−5·s−1 to 10−3·s−1, and F-T cycles ranged from 0 to 100.
Three levels of water pressure (0, 5, and 10 MPa) were applied to concrete.
Results showed that as the number of F-T cycles increased, the mass loss rate of the concrete specimen initially decreased and then increased, but the RDME decreased.
Under 5 MPa of water pressure and at the same strain rate, the ultimate compressive strength decreased, whereas the peak strain increased with the increase in the number of F-T cycles.
This result is contrary to the variation law of ultimate compressive strength and peak strain with the increase in strain rate under the same number of F-T times.
With the increase in F-T cycles or water pressure, the strain sensitivity of the dynamic increase factor of ultimate compressive strength and peak strain decreased, respectively.
After 100 F-T cycles, the dynamic compressive strength under all water pressure levels tended to increase as the strain rate increased, whereas the peak strain decreased gradually.
American Psychological Association (APA)
Wang, Ruijun& Li, Yan& Li, Yang& Xu, Fan& Li, Xiaotong& Fu, Tenghuan. 2019. Influence of Water Pressure on the Mechanical Properties of Concrete after Freeze-Thaw Attack under Dynamic Triaxial Compression State. Advances in Materials Science and Engineering،Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1121096
Modern Language Association (MLA)
Wang, Ruijun…[et al.]. Influence of Water Pressure on the Mechanical Properties of Concrete after Freeze-Thaw Attack under Dynamic Triaxial Compression State. Advances in Materials Science and Engineering No. 2019 (2019), pp.1-12.
https://search.emarefa.net/detail/BIM-1121096
American Medical Association (AMA)
Wang, Ruijun& Li, Yan& Li, Yang& Xu, Fan& Li, Xiaotong& Fu, Tenghuan. Influence of Water Pressure on the Mechanical Properties of Concrete after Freeze-Thaw Attack under Dynamic Triaxial Compression State. Advances in Materials Science and Engineering. 2019. Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1121096
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1121096