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Use of fibre-reinforced self-healing cementitious materials with superabsorbent polymers impact energy

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Abstract
One of the major flaws with concrete remains the susceptibility to cracking. The behavior and self-healing of cementitious materials with synthetic microfibers and superabsorbent polymers (SAPs) during and after a static four-point-bending test have been proven successful. Itwas however not known howthis material reacts when subjected to impact loading. In this study, a reference mixture and a mixture containing 1 m% of SAP were tested at an age of 28 days and stored in different healing conditions (Wet/Dry cycles and at 95 ±5% RH). After 28 days of healing the specimens are impacted and healed again. The applied impact test is a Drop- Weight-Test (DWT) and the healing is microscopically monitored and studied by means of natural frequency analysis. Specimens containing SAPs showa more ductile behavior during impact loading compared to reference samples. This ductile behavior enhances multiple cracking of the strain-hardening cementitious materials causing a possible higher amount of autogenous healing, which was confirmed by natural frequency analysis. The evolution of the natural frequencies shows a superior healing caused by SAPs in both Wet/Dry-cycling and storage at 95 ± 5 % RH.

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Chicago
Snoeck, Didier, P. De Schryver, and Nele De Belie. 2018. “Use of Fibre-reinforced Self-healing Cementitious Materials with Superabsorbent Polymers Impact Energy.” In Life-Cycle Analysis and Assessment in Civil Engineering : Towards an Integrated Vision (IALCCE2018), ed. Robby Caspeele, Luc Taerwe, and Dan M. Frangopol, 2255–2261. London: Taylor and Francis.
APA
Snoeck, D., De Schryver, P., & De Belie, N. (2018). Use of fibre-reinforced self-healing cementitious materials with superabsorbent polymers impact energy. In R. Caspeele, L. Taerwe, & D. M. Frangopol (Eds.), Life-Cycle Analysis and Assessment in Civil Engineering : Towards an Integrated Vision (IALCCE2018) (pp. 2255–2261). Presented at the Life-Cycle Analysis and Assessment in Civil Engineering : Towards an Integrated Vision (IALCCE2018), London: Taylor and Francis.
Vancouver
1.
Snoeck D, De Schryver P, De Belie N. Use of fibre-reinforced self-healing cementitious materials with superabsorbent polymers impact energy. In: Caspeele R, Taerwe L, Frangopol DM, editors. Life-Cycle Analysis and Assessment in Civil Engineering : Towards an Integrated Vision (IALCCE2018). London: Taylor and Francis; 2018. p. 2255–61.
MLA
Snoeck, Didier, P. De Schryver, and Nele De Belie. “Use of Fibre-reinforced Self-healing Cementitious Materials with Superabsorbent Polymers Impact Energy.” Life-Cycle Analysis and Assessment in Civil Engineering : Towards an Integrated Vision (IALCCE2018). Ed. Robby Caspeele, Luc Taerwe, & Dan M. Frangopol. London: Taylor and Francis, 2018. 2255–2261. Print.
@inproceedings{8594145,
  abstract     = {One of the major flaws with concrete remains the susceptibility to cracking. The behavior and
self-healing of cementitious materials with synthetic microfibers and superabsorbent polymers (SAPs) during
and after a static four-point-bending test have been proven successful. Itwas however not known howthis material
reacts when subjected to impact loading. In this study, a reference mixture and a mixture containing 1 m\% of
SAP were tested at an age of 28 days and stored in different healing conditions (Wet/Dry cycles and at 95 {\textpm}5\%
RH). After 28 days of healing the specimens are impacted and healed again. The applied impact test is a Drop-
Weight-Test (DWT) and the healing is microscopically monitored and studied by means of natural frequency
analysis. Specimens containing SAPs showa more ductile behavior during impact loading compared to reference
samples. This ductile behavior enhances multiple cracking of the strain-hardening cementitious materials causing
a possible higher amount of autogenous healing, which was confirmed by natural frequency analysis. The
evolution of the natural frequencies shows a superior healing caused by SAPs in both Wet/Dry-cycling and
storage at 95 {\textpm} 5 \% RH.},
  author       = {Snoeck, Didier and De Schryver, P. 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         = {978138626331},
  language     = {eng},
  location     = {Ghent (Belgium)},
  pages        = {2255--2261},
  publisher    = {Taylor and Francis},
  title        = {Use of fibre-reinforced self-healing cementitious materials with superabsorbent polymers impact energy},
  year         = {2018},
}