Academic Journal
Microstructure-based prediction of the elastic behaviour of hydrating cement pastes
| العنوان: | Microstructure-based prediction of the elastic behaviour of hydrating cement pastes |
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| المؤلفون: | Mazaheripour, Hadi, Faria, Rui, Ye, Guang, Schlangen, Erik, Granja, José Luís Duarte, Azenha, Miguel |
| بيانات النشر: | MDPI |
| سنة النشر: | 2018 |
| المجموعة: | Universidade of Minho: RepositóriUM |
| مصطلحات موضوعية: | Paste microstructure, HYMOSTRUC3D, Lattice, FEM, Elastic behaviour, Engenharia e Tecnologia::Engenharia Civil, Science & Technology |
| الوصف: | The development of the elastic properties of a hardening cement paste results from the microstructural evolution due to cement hydration. The elastic behaviour of cement paste can be predicted by a combination of the hydration model and micromechanical analysis, which originates from a microstructural representative volume where the elastic behaviour of different hydrating cement products can be recognised. In this paper, the formation of the microstructural volume is simulated with the computational code HYMOSTRUC3D for cement hydration. The obtained microstructure is an input for a micromechanical modelling. A 3D regular lattice model is proposed to predict the elastic modulus of the microstructure, considering a water-to-cement (w/c) ratio within the range [0.30–0.50]. In addition, the Finite Element Method (FEM) is used to compare and validate the results from the lattice model. Predictions from these two modelling approaches are then compared to the experimental results provided by the EMM-ARM (Elasticity Modulus Measurement through Ambient Response Method) testing technique, the latter allowing measurement of the elastic modulus of hydrating cement pastes. Finally, the above-referred numerical models are used to evaluate the influence of the following features: the particle size distribution of the cement grains, the microstructure discretisation refinement and the elastic modulus of the C-S-H cement hydration product ; POCI-01-0145-FEDER-007457 (CONSTRUCT—Institute of R&D in Structures and Construction) and POCI-01-0145-FEDER-007633 (ISISE—Institute for Sustainability and Innovation in Structural Engineering), funded by FEDER through COMPETE2020—Programa Operacional Competitividade e Internacionalização and by national funds through FCT—Fundação para a Ciência e a Tecnologia. FCT and FEDER (COMPETE2020), who are acknowledged for the funding of the research project PTDC/ECM-EST/1056/2014 (POCI-01-0145-FEDER-016841). The first author is also thankful for the grant with reference number ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2076-3417 |
| Relation: | PTDC/ECM-EST/1056/2014; SFRH/BPD/114754/2016; https://www.mdpi.com/2076-3417/8/3/442/htm; Mazaheripour, H., Faria, R., Ye, G., Schlangen, E., Granja, J., & Azenha, M. (2018). Microstructure-based prediction of the elastic behaviour of hydrating cement pastes. Applied Sciences, 8(3), 442; http://hdl.handle.net/1822/58465 |
| DOI: | 10.3390/app8030442 |
| الاتاحة: | http://hdl.handle.net/1822/58465 https://doi.org/10.3390/app8030442 |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.39F35BC7 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 20763417 |
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| DOI: | 10.3390/app8030442 |