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Characterization of crack in cement paste incorporating inert fillers under compressive loading

Xiaowei Ouyang, Guang Ye UGent and Klaas Van Breugel (2016) Microstructure Related Durability of Cementitious Composites. RILEM PRO 117. p.637-644
abstract
The cement industry is aware of the environmental problem due to large CO2 emission. Using less Portland cement can reduce the carbon footprint of the cement industry. This can be achieved by replacing part of Portland cement with inert additives such as micronized sand and limestone powder. With these materials economic and environmental friendly solutions are conceivable. However, because of its potential negative impact on the mechanical properties of cement paste, the influence of inert filler on the durability of the development of cracks in cement paste should be considered. One of the reasons is that additives reduce the concentration of Portland cement clinker and their strength-providing reaction products. The purpose of this study is to investigate the influence of inert fillers on the development of cracks in cement paste under compressive loading. A combined experimental and numerical investigation was performed in this study. The crack path in the loaded cement pastes was investigated by scanning electron microscopy (SEM) observations. Fracture processes of cement-based materials were simulated with a numerical model. The simulation results are validated by experiments. The results indicate that the mechanical properties of interface between hydration products and inert filler in cement paste systems have an important influence on the development of fracture in blended cement paste under compressive loading. The micronized with poor adhesion properties leads to a high probability of cracking in blended cement paste. On the contrary, the presence of LP particles has no significant impact on the propagation of cracks.
Please use this url to cite or link to this publication:
author
organization
year
type
conference (other)
publication status
published
subject
in
Microstructure Related Durability of Cementitious Composites
editor
Changwen Miao, Wei Sun, Jiaping Liu, Huisu Chen, Guang Ye UGent and Klaas Van Breugel
volume
RILEM PRO 117
pages
637 - 644
publisher
RILEM
place of publication
Paris (France)
conference name
3rd International RILEM Conference on Microstructure Related Durability of Cementitious Composites
conference location
Nanjing (China)
conference start
2016-10-24
conference end
2016-10-26
ISBN
978-2-35158-188-9
978-2-35158-189-6
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
8531026
handle
http://hdl.handle.net/1854/LU-8531026
date created
2017-09-13 08:22:24
date last changed
2017-09-18 08:11:34
@inproceedings{8531026,
  abstract     = {The cement industry is aware of the environmental problem due to large CO2 emission. Using less Portland cement can reduce the carbon footprint of the cement industry. This can be achieved by replacing part of Portland cement with inert additives such as micronized sand and limestone powder. With these materials economic and environmental friendly solutions are conceivable. However, because of its potential negative impact on the mechanical properties of cement paste, the influence of inert filler on the durability of the development of cracks in cement paste should be considered. One of the reasons is that additives reduce the concentration of Portland cement clinker and their strength-providing reaction products. The purpose of this study is to investigate the influence of inert fillers on the development of cracks in cement paste under compressive loading. A combined experimental and numerical investigation was performed in this study. The crack path in the loaded cement pastes was investigated by scanning electron microscopy (SEM) observations. Fracture processes of cement-based materials were simulated with a numerical model. The simulation results are validated by experiments. The results indicate that the mechanical properties of interface between hydration products and inert filler in cement paste systems have an important influence on the development of fracture in blended cement paste under compressive loading. The micronized with poor adhesion properties leads to a high probability of cracking in blended cement paste. On the contrary, the presence of LP particles has no significant impact on the propagation of cracks.},
  author       = {Ouyang, Xiaowei and Ye, Guang and Van Breugel, Klaas},
  booktitle    = {Microstructure Related Durability of Cementitious Composites},
  editor       = {Miao, Changwen and Sun, Wei and Liu, Jiaping and Chen, Huisu and Ye, Guang and Van Breugel, Klaas},
  isbn         = {978-2-35158-188-9},
  language     = {eng},
  location     = {Nanjing (China)},
  pages        = {637--644},
  publisher    = {RILEM },
  title        = {Characterization of crack in cement paste incorporating inert fillers under compressive loading},
  volume       = {RILEM PRO 117},
  year         = {2016},
}

Chicago
Ouyang, Xiaowei, Guang Ye, and Klaas Van Breugel. 2016. “Characterization of Crack in Cement Paste Incorporating Inert Fillers Under Compressive Loading.” In Microstructure Related Durability of Cementitious Composites, ed. Changwen Miao, Wei Sun, Jiaping Liu, Huisu Chen, Guang Ye, and Klaas Van Breugel, RILEM PRO 117:637–644. Paris (France): RILEM .
APA
Ouyang, X., Ye, G., & Van Breugel, K. (2016). Characterization of crack in cement paste incorporating inert fillers under compressive loading. In C. Miao, W. Sun, J. Liu, H. Chen, G. Ye, & K. Van Breugel (Eds.), Microstructure Related Durability of Cementitious Composites (Vol. RILEM PRO 117, pp. 637–644). Presented at the 3rd International RILEM Conference on Microstructure Related Durability of Cementitious Composites, Paris (France): RILEM .
Vancouver
1.
Ouyang X, Ye G, Van Breugel K. Characterization of crack in cement paste incorporating inert fillers under compressive loading. In: Miao C, Sun W, Liu J, Chen H, Ye G, Van Breugel K, editors. Microstructure Related Durability of Cementitious Composites. Paris (France): RILEM ; 2016. p. 637–44.
MLA
Ouyang, Xiaowei, Guang Ye, and Klaas Van Breugel. “Characterization of Crack in Cement Paste Incorporating Inert Fillers Under Compressive Loading.” Microstructure Related Durability of Cementitious Composites. Ed. Changwen Miao et al. RILEM PRO 117. Paris (France): RILEM , 2016. 637–644. Print.