Experimental Study on Deformation Behavior and Compressive Strength of Concrete Cast in Steel Tube Arches under Low-Temperature Conditions
Joint Authors
Deng, Nianchun
Guo, Xiao
Shi, Tuo
Xu, Wen
Wang, Shi
Source
Advances in Materials Science and Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-02-06
Country of Publication
Egypt
No. of Pages
10
Abstract EN
Taking the construction of a concrete-filled steel tube (CFST) arch bridge (part of the Sichuan-Tibet Railway) in low temperatures as the test site, firstly the deformation performance test of concrete was carried out.
Following this initial testing, measurement of compressive strength and shrinkage performance was conducted in large-diameter CFSTs under a variety of curing conditions.
Experimental results showed that the expansion effect of Ca-Mg composite expansive agent in concrete was better than that of other expansive agents at any stage.
Under low-temperature curing (0°C), the sampling strength of the large-diameter CFSTs reached 73.5% of the design strength at 28 d in the presence of a nonthermal curing system.
The design strength itself was reached, when a curing system involving a thermal insulation film was applied, and use of this film also led to improvements in concrete shrinkage.
The results suggested that a Ca-Mg composite expansive agent, combined with an insulation film curing system, should be the technique selected for concrete pumping construction of CFST arch bridges in Tibet.
American Psychological Association (APA)
Shi, Tuo& Deng, Nianchun& Guo, Xiao& Xu, Wen& Wang, Shi. 2020. Experimental Study on Deformation Behavior and Compressive Strength of Concrete Cast in Steel Tube Arches under Low-Temperature Conditions. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1129207
Modern Language Association (MLA)
Shi, Tuo…[et al.]. Experimental Study on Deformation Behavior and Compressive Strength of Concrete Cast in Steel Tube Arches under Low-Temperature Conditions. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1129207
American Medical Association (AMA)
Shi, Tuo& Deng, Nianchun& Guo, Xiao& Xu, Wen& Wang, Shi. Experimental Study on Deformation Behavior and Compressive Strength of Concrete Cast in Steel Tube Arches under Low-Temperature Conditions. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1129207
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1129207