期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 264, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2020.120264
关键词
Cement paste; Viscoelastic behavior; Basic creep; Homogenization
资金
- Vietnam National Foundation for Science and Technology Development (NAFOSTED) [107.02-2016.12]
This paper aims to develop a robust homogenization scheme for the viscoelastic behavior of early age and hardened cement pastes. The short-term creep of early age cement and the short- and long-term creeps of hardened cement are modeled by the non-ageing viscoelastic behavior. The ageing creep at early age is modeled by considering the evolution of the microstructure during the hydration process. This model offers a practical technique to predict the ageing creep at early age from data of non-ageing creep at the hardened state, and vice versa. It is also able to describe the creep behavior of a paste with certain water to cement ratio from data of a paste with another water to cement ratio. It is well validated against a large variety of the most relevant data available in literature and provides a great potential of application in practice. (C) 2020 Elsevier Ltd. All rights reserved.
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