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2023 | OriginalPaper | Buchkapitel

Temperature-Dependent Behavior of Mature Cement Paste: Creep Testing and Multiscale Modeling

verfasst von : Eva Binder, Markus Königsberger, Rodrigo Díaz Flores, Herbert A. Mang, Christian Hellmich, Bernhard L. A. Pichler

Erschienen in: International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures

Verlag: Springer Nature Switzerland

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Abstract

The elastic compliance of cementitious materials increases slightly, and their time-dependent “creep” compliance increases significantly with increasing temperature. The present contribution provides quantitative insight into this topic. Thereby, the focus rests on mature cement paste made from Ordinary Portland cement and distilled water. Macroscopic creep experiments were performed, in order to quantify both elastic and creep moduli in the range of temperatures from 20 ℃ to 45 ℃. The experimental results regarding temperature-dependent values of the modulus of elasticity are validated herein using original results from ultrasonics testing. Finally, a multiscale model was used to establish a link to well-known stiffness constants of unhydrated cement clinker, as well as to temperature-dependent elastic and creep stiffness properties of nanoscopic hydrate-gel needles.

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Vorheriges Kapitel MASKE: Particle-Based Chemo-Mechanical Simulations of Degradation Processes

Nächstes Kapitel Development of an Experimental-Numerical Approach to Model Cement Paste Microstructure Using Quantitative Phase Assemblage from XRD and Thermodynamic Modeling

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Titel: Temperature-Dependent Behavior of Mature Cement Paste: Creep Testing and Multiscale Modeling
verfasst von: Eva Binder
Markus Königsberger
Rodrigo Díaz Flores
Herbert A. Mang
Christian Hellmich
Bernhard L. A. Pichler
Verlag: Springer Nature Switzerland
Buch: International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures
Print ISBN: 978-3-031-33210-4

Electronic ISBN: 978-3-031-33211-1

Copyright-Jahr: 2023
DOI: https://doi.org/10.1007/978-3-031-33211-1_16

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