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Efficiency of manual and autonomous healing to mitigate chloride ingress in cracked concrete

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Abstract
In order to mitigate chloride ingress and subsequent chloride-induced reinforcement corrosion in cracked concrete, a number of protection mechanisms are available. However, if at the moment of manual crack repair, a high amount of chloride ions is already present in the concrete matrix and can diffuse to accumulate in sufficient quantity at the location of the reinforcing steel, manual healing will not be as effective. When cracks are healed autonomously, the healing mechanism is triggered immediately upon crack occurrence and thus limits almost immediately ingress and accumulation of aggressive ions near the rebar. Therefore, within this study, a comparison was made between the efficiency of manual crack healing, for which chloride ions possibly already penetrated via the crack before repair, and autonomous crack healing, resulting in immediate repair, to mitigate chloride ingress in cracked concrete.

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Chicago
Van Tittelboom, Kim, Bjorn Van Belleghem, R. Callens, Philip Van den Heede, and Nele De Belie. 2018. “Efficiency of Manual and Autonomous Healing to Mitigate Chloride Ingress in Cracked Concrete.” In Life-Cycle Analysis and Assessment in Civil Engineering : Towards an Integrated Vision (IALCCE2018), ed. Robby Caspeele, Luc Taerwe, and Dan M. Frangopol, 2285–2291. London: Francis and Taylor.
APA
Van Tittelboom, K., Van Belleghem, B., Callens, R., Van den Heede, P., & De Belie, N. (2018). Efficiency of manual and autonomous healing to mitigate chloride ingress in cracked concrete. In R. Caspeele, L. Taerwe, & D. M. Frangopol (Eds.), Life-Cycle Analysis and Assessment in Civil Engineering : Towards an Integrated Vision (IALCCE2018) (pp. 2285–2291). Presented at the Life-Cycle Analysis and Assessment in Civil Engineering : Towards an Integrated Vision (IALCCE2018), London: Francis and Taylor.
Vancouver
1.
Van Tittelboom K, Van Belleghem B, Callens R, Van den Heede P, De Belie N. Efficiency of manual and autonomous healing to mitigate chloride ingress in cracked concrete. In: Caspeele R, Taerwe L, Frangopol DM, editors. Life-Cycle Analysis and Assessment in Civil Engineering : Towards an Integrated Vision (IALCCE2018). London: Francis and Taylor; 2018. p. 2285–91.
MLA
Van Tittelboom, Kim et al. “Efficiency of Manual and Autonomous Healing to Mitigate Chloride Ingress in Cracked Concrete.” Life-Cycle Analysis and Assessment in Civil Engineering : Towards an Integrated Vision (IALCCE2018). Ed. Robby Caspeele, Luc Taerwe, & Dan M. Frangopol. London: Francis and Taylor, 2018. 2285–2291. Print.
@inproceedings{8594173,
  abstract     = {In order to mitigate chloride ingress and subsequent chloride-induced reinforcement corrosion in
cracked concrete, a number of protection mechanisms are available. However, if at the moment of manual crack
repair, a high amount of chloride ions is already present in the concrete matrix and can diffuse to accumulate in
sufficient quantity at the location of the reinforcing steel, manual healing will not be as effective. When cracks
are healed autonomously, the healing mechanism is triggered immediately upon crack occurrence and thus limits
almost immediately ingress and accumulation of aggressive ions near the rebar. Therefore, within this study, a
comparison was made between the efficiency of manual crack healing, for which chloride ions possibly already
penetrated via the crack before repair, and autonomous crack healing, resulting in immediate repair, to mitigate
chloride ingress in cracked concrete.},
  author       = {Van Tittelboom, Kim and Van Belleghem, Bjorn and Callens, R. and Van den Heede, Philip and De Belie, Nele},
  booktitle    = {Life-Cycle Analysis and Assessment in Civil Engineering : Towards an Integrated Vision (IALCCE2018)},
  editor       = {Caspeele, Robby and Taerwe, Luc and Frangopol, Dan M.},
  isbn         = {9781138626331},
  language     = {eng},
  location     = {Ghent, Belgium},
  pages        = {2285--2291},
  publisher    = {Francis and Taylor},
  title        = {Efficiency of manual and autonomous healing to mitigate chloride ingress in cracked concrete},
  year         = {2018},
}