A robust homogenization method for ageing and non-ageing viscoelastic behavior of early age and hardened cement pastes. (20th December 2020)

• Record Type: Journal Article
• Authors: Thai, Minh-Quan; Nguyen-Sy, Tuan; Wakim, Jad; Vu, Minh-Ngoc; To, Quy-Dong; Nguyen, The-Duong; Nguyen, Thoi-Trung
• Is Part Of: Construction & building materials. Volume 264(2021)
• Publication Date: 2020-12-20
• Subjects: Cement paste -- Viscoelastic behavior -- Basic creep -- Homogenization; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2020.120264
• Languages: English
• ISSNs: 0950-0618

Abstract

Abstract: 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.