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Simulation of the microstructure formation in hardening self-compacting cement paste containing limestone powder as filler via computer-based model

Xian Liu, Guang Ye UGent, Geert De Schutter UGent and Yong Yuan (2013) MATERIALS AND STRUCTURES. 46(11). p.1861-1879
abstract
With the development of concrete technology, fillers are widely used in high performance concrete to improve its properties. Among them, limestone powder is popularly added in self-compacting concrete to gain good flowability. However, by lack of experimental data, several materials properties after the addition of limestone powder are still not sure, which actually yield some uncertainty for the further use of limestone powder in cement-based materials. In this study, by employing computer-based model, the microstructure of self-compacting cement paste containing limestone as filler is simulated and further used to investigate the role of limestone in hardening materials. To gain this goal, thermometric isothermal conduction calorimetry, thermal analysis and backscattered electron image acquisition were applied to understand the hydration kinetics with the addition of limestone filler. After that, a computational materials model based on HYMOSTRUC was developed to simulate the formation of microstructure in materials containing limestone powder. The predictive ability of the model was validated with the experimental test results. Then the developed model was employed to investigate the influence of several variables, such as water to cement ratio, limestone filler content and fineness, on the microstructure formation in hardening materials. The numerical experiments show that the addition of limestone filler could result in a denser microstructure at the initial hydration stage. With the proceeding of hydration, the limestone powder has a decreasing influence on the microstructure, and could obstruct somewhat the formation of a denser microstructure at later hydration stage. And it is found that computer-based modelling is an effective method to provide insights into the material behaviour, by relieving researchers from numerous repeated experiments.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
Computer-based model, Microstructure, Self-compacting material, Limestone powder, PERCOLATION, SLAG, HYDRATION, CONCRETE, BLENDED CEMENT, PORE STRUCTURE, NUMERICAL-SIMULATION
journal title
MATERIALS AND STRUCTURES
volume
46
issue
11
pages
1861 - 1879
Web of Science type
Article
Web of Science id
000325775200006
JCR category
ENGINEERING, CIVIL
JCR impact factor
1.39 (2013)
JCR rank
31/124 (2013)
JCR quartile
1 (2013)
ISSN
1359-5997
DOI
10.1617/s11527-013-0026-4
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
5707654
handle
http://hdl.handle.net/1854/LU-5707654
date created
2014-09-23 09:32:31
date last changed
2016-12-19 15:46:44
@article{5707654,
  abstract     = {With the development of concrete technology, fillers are widely used in high performance concrete to improve its properties. Among them, limestone powder is popularly added in self-compacting concrete to gain good flowability. However, by lack of experimental data, several materials properties after the addition of limestone powder are still not sure, which actually yield some uncertainty for the further use of limestone powder in cement-based materials. In this study, by employing computer-based model, the microstructure of self-compacting cement paste containing limestone as filler is simulated and further used to investigate the role of limestone in hardening materials. To gain this goal, thermometric isothermal conduction calorimetry, thermal analysis and backscattered electron image acquisition were applied to understand the hydration kinetics with the addition of limestone filler. After that, a computational materials model based on HYMOSTRUC was developed to simulate the formation of microstructure in materials containing limestone powder. The predictive ability of the model was validated with the experimental test results. Then the developed model was employed to investigate the influence of several variables, such as water to cement ratio, limestone filler content and fineness, on the microstructure formation in hardening materials. The numerical experiments show that the addition of limestone filler could result in a denser microstructure at the initial hydration stage. With the proceeding of hydration, the limestone powder has a decreasing influence on the microstructure, and could obstruct somewhat the formation of a denser microstructure at later hydration stage. And it is found that computer-based modelling is an effective method to provide insights into the material behaviour, by relieving researchers from numerous repeated experiments.},
  author       = {Liu, Xian and Ye, Guang and De Schutter, Geert and Yuan, Yong},
  issn         = {1359-5997},
  journal      = {MATERIALS AND STRUCTURES},
  keyword      = {Computer-based model,Microstructure,Self-compacting material,Limestone powder,PERCOLATION,SLAG,HYDRATION,CONCRETE,BLENDED CEMENT,PORE STRUCTURE,NUMERICAL-SIMULATION},
  language     = {eng},
  number       = {11},
  pages        = {1861--1879},
  title        = {Simulation of the microstructure formation in hardening self-compacting cement paste containing limestone powder as filler via computer-based model},
  url          = {http://dx.doi.org/10.1617/s11527-013-0026-4},
  volume       = {46},
  year         = {2013},
}

Chicago
Liu, Xian, Guang Ye, Geert De Schutter, and Yong Yuan. 2013. “Simulation of the Microstructure Formation in Hardening Self-compacting Cement Paste Containing Limestone Powder as Filler via Computer-based Model.” Materials and Structures 46 (11): 1861–1879.
APA
Liu, Xian, Ye, G., De Schutter, G., & Yuan, Y. (2013). Simulation of the microstructure formation in hardening self-compacting cement paste containing limestone powder as filler via computer-based model. MATERIALS AND STRUCTURES, 46(11), 1861–1879.
Vancouver
1.
Liu X, Ye G, De Schutter G, Yuan Y. Simulation of the microstructure formation in hardening self-compacting cement paste containing limestone powder as filler via computer-based model. MATERIALS AND STRUCTURES. 2013;46(11):1861–79.
MLA
Liu, Xian, Guang Ye, Geert De Schutter, et al. “Simulation of the Microstructure Formation in Hardening Self-compacting Cement Paste Containing Limestone Powder as Filler via Computer-based Model.” MATERIALS AND STRUCTURES 46.11 (2013): 1861–1879. Print.