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Screening encapsulated polymeric healing agents for carbonation-exposed self-healing concrete, service life extension and environmental benefit

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Abstract
By incorporating encapsulated polymers in concrete, cracks can be healed autonomously upon occurrence. This is of high value for steel reinforced concrete structures subject to carbonation-induced corrosion. This paper presents the results of a rapid colorimetric screening test to assess the carbonation resistance of self-healing concretes containing encapsulated polymer-based healing agents. Four systems were tested for inhibition of further carbonation near artificially induced cracks (width : 300 um). Next, the time to steel epassivation was assessed probabilistically in comparison with cracked concrete. With an adequately working pressurized PU precursos, the concrete would remain repair-free for at least 100 years. Subsequent life cycle assessment in SimaPro showed a potential environmental benefit (72-78%) for the ten CML-IA baseline impact categories which is mainly due to the service life extension possible with a properly working self-healing concrete.

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Chicago
Van den Heede, Philip, Bjorn Van Belleghem, Maria Adelaide Pereira Gomes de Araújo, João Luis Garcia Feiteira, and Nele De Belie. 2018. “Screening Encapsulated Polymeric Healing Agents for Carbonation-exposed Self-healing Concrete, Service Life Extension and Environmental Benefit.” In International Congress on Polymers in Concrete (ICPIC2018), ed. Mahmoud M. Reda Reda Taha, 83–89. Cham, Switzerland: Springer International Publishing.
APA
Van den Heede, P., Van Belleghem, B., Pereira Gomes de Araújo, M. A., Garcia Feiteira, J. L., & De Belie, N. (2018). Screening encapsulated polymeric healing agents for carbonation-exposed self-healing concrete, service life extension and environmental benefit. In M. M. R. Reda Taha (Ed.), International Congress on Polymers in Concrete (ICPIC2018) (pp. 83–89). Presented at the International Congress on Polymers in Concrete (ICPIC2018), Cham, Switzerland: Springer International Publishing.
Vancouver
1.
Van den Heede P, Van Belleghem B, Pereira Gomes de Araújo MA, Garcia Feiteira JL, De Belie N. Screening encapsulated polymeric healing agents for carbonation-exposed self-healing concrete, service life extension and environmental benefit. In: Reda Taha MMR, editor. International Congress on Polymers in Concrete (ICPIC2018). Cham, Switzerland: Springer International Publishing; 2018. p. 83–9.
MLA
Van den Heede, Philip et al. “Screening Encapsulated Polymeric Healing Agents for Carbonation-exposed Self-healing Concrete, Service Life Extension and Environmental Benefit.” International Congress on Polymers in Concrete (ICPIC2018). Ed. Mahmoud M. Reda Reda Taha. Cham, Switzerland: Springer International Publishing, 2018. 83–89. Print.
@inproceedings{8599155,
  abstract     = {By incorporating encapsulated polymers in concrete, cracks can be healed autonomously upon occurrence. This is of high value for steel reinforced concrete structures subject to carbonation-induced corrosion. This paper presents the results of a rapid colorimetric screening test to assess the carbonation resistance of self-healing concretes containing encapsulated polymer-based healing agents. Four systems were tested for inhibition of further carbonation near artificially induced cracks (width : 300 um). Next, the time to steel epassivation was assessed probabilistically in comparison with cracked concrete. With an adequately working pressurized PU precursos, the concrete would remain repair-free for at least 100 years. Subsequent life cycle assessment in SimaPro showed a potential environmental benefit (72-78\%) for the ten CML-IA baseline impact categories which is mainly due to the service life extension possible with a properly working self-healing concrete.},
  author       = {Van den Heede, Philip and Van Belleghem, Bjorn and Pereira Gomes de Ara{\'u}jo, Maria Adelaide and Garcia Feiteira, Jo{\~a}o Luis and De Belie, Nele},
  booktitle    = {International Congress on Polymers in Concrete (ICPIC2018)},
  editor       = {Reda Taha, Mahmoud M. Reda},
  isbn         = {9783319781747},
  language     = {eng},
  location     = {Washington DC},
  pages        = {83--89},
  publisher    = {Springer International Publishing},
  title        = {Screening encapsulated polymeric healing agents for carbonation-exposed self-healing concrete, service life extension and environmental benefit},
  url          = {http://dx.doi.org/10.1007/978-3-319-78175-4\_8},
  year         = {2018},
}

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