Hydration Heat of Nonshrinkage Concrete in Large-Diameter CFST Arch Ribs Cured at Low Temperatures

To study the construction of concrete-filled steel tubular (CFST) arch bridges in Tibet, China, the hydration-temperature field of nonshrinkage concrete in large-diameter CFST arch ribs was evaluated in a temperature-testing box to simulate a low-temperature environment. A finite element simulation was then conducted to replicate the experimental results. Finally, an improved formula with the parameters related to the diameter, the position, and the retarding time of concrete for predicting the hydration heat generated by non-shrinkage concrete in large-diameter CFST arch ribs cured at low temperatures was proposed. The formula results were shown to be consistent with the experimental results for low-temperature conditions and large diameters. This research method can be extended to predict the hydration heat at all locations in different-diameter CFSTs with different concrete mixes cured at various temperatures.

Record URL:
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/16878086
Supplemental Notes:
- © 2020 Tuo Shi et al.
Authors:
- Shi, Tuo
- Deng, Nianchun
- Pan, Dong
- Wang, Shi
Publication Date: 2020-11

Language

English

Media Info

Media Type: Web
Features: Figures; References; Tables;
Pagination: Article ID 8858702
Serial:
- Advances in Civil Engineering
- Volume: 2020
- Publisher: Hindawi Publishing Corporation
- ISSN: 1687-8086
- EISSN: 1687-8094
- Serial URL: http://www.hindawi.com/journals/ace/
Publication flags:
Open Access (libre)

Subject/Index Terms

TRT Terms: Arch bridges; Bridges; Concrete; Concrete structures; Finite element method; Heat of hydration; Steel; Temperature; Tubing
Subject Areas: Bridges and other structures; Highways; Railroads;

Filing Info

Accession Number: 01761248
Record Type: Publication
Files: TRIS
Created Date: Nov 25 2020 4:49PM