Thermal cracking analysis during pipe cooling of mass concrete using particle flow code

Li, Liang, Liu, Xinghong, Dao, Vinh T. N. and Cheng, Yonggang (2016) Thermal cracking analysis during pipe cooling of mass concrete using particle flow code. Advances in Materials Science and Engineering, 2016 5976862.1-5976862.10. doi:10.1155/2016/5976862

Author Li, Liang
Liu, Xinghong
Dao, Vinh T. N.
Cheng, Yonggang
Title Thermal cracking analysis during pipe cooling of mass concrete using particle flow code
Journal name Advances in Materials Science and Engineering   Check publisher's open access policy
ISSN 1687-8434
Publication date 2016-03-17
Sub-type Article (original research)
DOI 10.1155/2016/5976862
Open Access Status DOI
Volume 2016
Start page 5976862.1
End page 5976862.10
Total pages 10
Place of publication New York, United States
Publisher Hindawi Publishing Corporation
Language eng
Formatted abstract
Pipe cooling systems are among the potentially effective measures to control the temperature of mass concrete. However, if not properly controlled, thermal cracking in concrete, especially near water pipes, might occur, as experienced in many mass concrete structures. In this paper, a new numerical approach to simulate thermal cracking based on particle flow code is used to shed more light onto the process of thermal crack propagation and the effect of thermal cracks on thermal fields. Key details of the simulation, including the procedure of obtaining thermal and mechanical properties of particles, are presented. Importantly, a heat flow boundary based on an analytical solution is proposed and used in particle flow code in two dimensions to simulate the effect of pipe cooling. The simulation results are in good agreement with the monitored temperature data and observations on cored specimens from a real concrete gravity dam, giving confidence to the appropriateness of the adopted simulation. The simulated results also clearly demonstrate why thermal cracks occur and how they propagate, as well as the influence of such cracks on thermal fields.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
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Created: Tue, 24 May 2016, 18:14:11 EST by Dr Vinh Dao on behalf of School of Civil Engineering