Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 324, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2022.126705
Keywords
Concrete; Basic creep; Entropy increasing theory; High temperature
Categories
Funding
- National Natural Science Foundation of China [11772257]
- Natural Science Foundation of Shaanxi Province [2020JM-103]
- Fundamental Research Funds for the Central Universities [G2019KY05212]
Ask authors/readers for more resources
A new entropy based basic creep model for concrete at high-temperature is proposed, which is based on thermodynamic principle and entropy increasing theory. The influence of key engineering parameters at different temperatures has been investigated, showing good prediction accuracy.
Creep of concrete has certain impact on its mechanical properties and can seriously affect the structural safety. At high-temperature or under fire attack, the basic creep strain develops rapidly in a few hours in concrete and cannot be ignored. In the current study, a new entropy based basic creep model for concrete at high-temperature is proposed based on the thermodynamic principle and entropy increasing theory. The relationship between entropy increase rate and time is developed. The influence of key engineering parameters for basic creep of concrete at different temperatures is investigated. Predictions of the developed model are compared with the experimental data and show good accuracy.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available