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Prediction of microstructural evolution in fly ash-modified cementitious system: A computational study Cover

Prediction of microstructural evolution in fly ash-modified cementitious system: A computational study

Materials Science-Poland
Volume 41 (2023): Issue 4 (December 2023)
By: Andualem E. Yadeta,  Pradeep K. Goyal and  Raju Sarkar  
Open Access
|Mar 2024

Figures & Tables

Fig. 1.

Particle size distribution of OPC and FA used in the model

Fig. 2.

Oxide composition of OPC and FA used in the model (mass%)

Fig. 3.

Simulated degree of hydration in blended cement with 10%, 20%, 30%, and 40% FA substitution for w/c = 0.45

Fig. 4.

Comparison of CH formation in FA-modified cement paste

Fig. 5.

Simulated microstructure of FA-blended cement pastes from the CEMHYD3D model with various FA substitutions. The image is 256μm × 200μm

Fig. 6.

Model-predicted effect of FA on pore structure of cement paste at the age of 180 days

Pore size distribution of FA-blended cement paste at the age of 180 days

FA Replacement (%)Pore Size < 10 nm (%)Pore Size 10–100 nm (%)Pore Size > 100 nm (%)
012.5056.5031.00
1011.1055.3033.60
2010.2054.9034.90
309.3054.2036.50
408.4053.4038.20
DOI: https://doi.org/10.2478/msp-2023-0044 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331
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Language: English
Page range: 68 - 77
Submitted on: Sep 6, 2023
|
Accepted on: Oct 10, 2023
|
Published on: Mar 21, 2024
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
cementitious system,
FA, prediction model,
microstructural evolution,
pore structure
Related subjects:
Materials sciences,
Materials sciences, other,
Nanomaterials,
Functional and smart materials,
Materials characterization and properties

© 2024 Andualem E. Yadeta, Pradeep K. Goyal, Raju Sarkar, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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