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Application of encapsulated superabsorbent polymers in cementitious materials for stimulated autogenous healing

Jani Pelto, Markku Leivo, Elke Gruyaert, Brenda Debbaut UGent, Didier Snoeck UGent and Nele De Belie UGent (2017) SMART MATERIALS AND STRUCTURES. 26(10). p.1-14
abstract
Superabsorbent polymers have shown potential for use in mortar and concrete as self-healing agents. The main drawback is, however, that these superabsorbent polymers also absorb mixing water during the preparation and casting of mortar or concrete, leading to a loss in workability. To avoid the absorption of mixing water, superabsorbent polymers were coated using a fluid bed spraying process. The barrier coating consisted of three successive coating layers: polyvinylbutyral as primer/wetting layer, cyclo-olefin copolymer as a barrier layer and a sol-gel derived zirconium-silicon oxide as an adhesion-promoting topcoat layer. The coated SAPs were characterized, and their swelling determined to quantify the delay in uptake of water and Ca(OH)(2) solution. The last was considered as the most important, as the SAPs will finally be applied in mortar or concrete having a pore solution with high pH. The results showed that swelling could be delayed to a large extent, but for a short time. Results showed that the self-sealing efficiency of mortars was not affected by coating the SAPs. Moreover, due to the reduced uptake of mixing water, the strength reduction, noticed when uncoated SAPs were added to the mortar, could partly be compensated.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
OF-THE-ART, WATER, CONCRETE, SHRINKAGE, MICROSTRUCTURE, MICROCAPSULES, PENETRATION, STRENGTH, MORTARS, CRACKS, superabsorbent polymers, coating, self-healing, mortar
journal title
SMART MATERIALS AND STRUCTURES
Smart Mater. Struct.
volume
26
issue
10
article number
105043
pages
14 pages
publisher
Iop Publishing Ltd
place of publication
Bristol
Web of Science type
Article
Web of Science id
000410801400002
ISSN
0964-1726
1361-665X
DOI
10.1088/1361-665X/aa8497
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
8557538
handle
http://hdl.handle.net/1854/LU-8557538
date created
2018-03-27 13:36:31
date last changed
2018-05-14 09:37:01
@article{8557538,
  abstract     = {Superabsorbent polymers have shown potential for use in mortar and concrete as self-healing agents. The main drawback is, however, that these superabsorbent polymers also absorb mixing water during the preparation and casting of mortar or concrete, leading to a loss in workability. To avoid the absorption of mixing water, superabsorbent polymers were coated using a fluid bed spraying process. The barrier coating consisted of three successive coating layers: polyvinylbutyral as primer/wetting layer, cyclo-olefin copolymer as a barrier layer and a sol-gel derived zirconium-silicon oxide as an adhesion-promoting topcoat layer. The coated SAPs were characterized, and their swelling determined to quantify the delay in uptake of water and Ca(OH)(2) solution. The last was considered as the most important, as the SAPs will finally be applied in mortar or concrete having a pore solution with high pH. The results showed that swelling could be delayed to a large extent, but for a short time. Results showed that the self-sealing efficiency of mortars was not affected by coating the SAPs. Moreover, due to the reduced uptake of mixing water, the strength reduction, noticed when uncoated SAPs were added to the mortar, could partly be compensated.},
  articleno    = {105043},
  author       = {Pelto, Jani and Leivo, Markku and Gruyaert, Elke and Debbaut, Brenda and Snoeck, Didier and De Belie, Nele},
  issn         = {0964-1726},
  journal      = {SMART MATERIALS AND STRUCTURES},
  keyword      = {OF-THE-ART,WATER,CONCRETE,SHRINKAGE,MICROSTRUCTURE,MICROCAPSULES,PENETRATION,STRENGTH,MORTARS,CRACKS,superabsorbent polymers,coating,self-healing,mortar},
  language     = {eng},
  number       = {10},
  pages        = {105043:1--105043:14},
  publisher    = {Iop Publishing Ltd},
  title        = {Application of encapsulated superabsorbent polymers in cementitious materials for stimulated autogenous healing},
  url          = {http://dx.doi.org/10.1088/1361-665X/aa8497},
  volume       = {26},
  year         = {2017},
}

Chicago
Pelto, Jani, Markku Leivo, Elke Gruyaert, Brenda Debbaut, Didier Snoeck, and Nele De Belie. 2017. “Application of Encapsulated Superabsorbent Polymers in Cementitious Materials for Stimulated Autogenous Healing.” Smart Materials and Structures 26 (10): 1–14.
APA
Pelto, J., Leivo, M., Gruyaert, E., Debbaut, B., Snoeck, D., & De Belie, N. (2017). Application of encapsulated superabsorbent polymers in cementitious materials for stimulated autogenous healing. SMART MATERIALS AND STRUCTURES, 26(10), 1–14.
Vancouver
1.
Pelto J, Leivo M, Gruyaert E, Debbaut B, Snoeck D, De Belie N. Application of encapsulated superabsorbent polymers in cementitious materials for stimulated autogenous healing. SMART MATERIALS AND STRUCTURES. Bristol: Iop Publishing Ltd; 2017;26(10):1–14.
MLA
Pelto, Jani, Markku Leivo, Elke Gruyaert, et al. “Application of Encapsulated Superabsorbent Polymers in Cementitious Materials for Stimulated Autogenous Healing.” SMART MATERIALS AND STRUCTURES 26.10 (2017): 1–14. Print.