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Cradle-to-gate life cycle assessment of self-healing engineered cementitious composite with in-house developed (semi-)synthetic superabsorbent polymers

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Abstract
Autogenous crack healing can be stimulated with superabsorbent polymers (SAPs) in microfibre reinforced strain hardening engineered cementitious composite (ECC). Cradle-to-gate life cycle assessment was performed for self healing ECC with 1 m% of three in-house developed (semi-)synthetic SAPs and 2 v% of polypropylene (PP) or polyvinyl alcohol (PVA) microfibre. Given the high cement content of this ECC (572 kg/m(3)), CML-IA impacts of 1 m% SAP range between 4 and 52% of the cement impact. The highest impacts were recorded for semi-synthetic SAPs, due to high energy use during drying. Use of PVA microfibre should be avoided since addition of 2 v% (=26 kg/m(3)) can easily induce significantly higher CML-IA impacts than 572 kg cement. Nonetheless, if 100% crack healing efficiency could be assumed for slabs made of self-healing ECC, CML-IA impacts remain lower than those of a slab made of traditional concrete with inclusion of the required cover replacements within 100 years.
Keywords
Self-healing concrete, Autogenous crack healing, Superabsorbent polymers, Synthetic microfibres, Life cycle assessment, SERVICE LIFE, CAPABILITY, CONCRETE, MICROFIBERS, PERFORMANCE, RECOVERY, FIBER

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Chicago
Van den Heede, Philip, Arn Mignon, Guillaume Habert, and Nele De Belie. 2018. “Cradle-to-gate Life Cycle Assessment of Self-healing Engineered Cementitious Composite with In-house Developed (semi-)synthetic Superabsorbent Polymers.” Cement & Concrete Composites 94: 166–180.
APA
Van den Heede, P., Mignon, A., Habert, G., & De Belie, N. (2018). Cradle-to-gate life cycle assessment of self-healing engineered cementitious composite with in-house developed (semi-)synthetic superabsorbent polymers. CEMENT & CONCRETE COMPOSITES, 94, 166–180.
Vancouver
1.
Van den Heede P, Mignon A, Habert G, De Belie N. Cradle-to-gate life cycle assessment of self-healing engineered cementitious composite with in-house developed (semi-)synthetic superabsorbent polymers. CEMENT & CONCRETE COMPOSITES. 2018;94:166–80.
MLA
Van den Heede, Philip et al. “Cradle-to-gate Life Cycle Assessment of Self-healing Engineered Cementitious Composite with In-house Developed (semi-)synthetic Superabsorbent Polymers.” CEMENT & CONCRETE COMPOSITES 94 (2018): 166–180. Print.
@article{8599030,
  abstract     = {Autogenous crack healing can be stimulated with superabsorbent polymers (SAPs) in microfibre reinforced strain hardening engineered cementitious composite (ECC). Cradle-to-gate life cycle assessment was performed for self healing ECC with 1 m\% of three in-house developed (semi-)synthetic SAPs and 2 v\% of polypropylene (PP) or polyvinyl alcohol (PVA) microfibre. Given the high cement content of this ECC (572 kg/m(3)), CML-IA impacts of 1 m\% SAP range between 4 and 52\% of the cement impact. The highest impacts were recorded for semi-synthetic SAPs, due to high energy use during drying. Use of PVA microfibre should be avoided since addition of 2 v\% (=26 kg/m(3)) can easily induce significantly higher CML-IA impacts than 572 kg cement. Nonetheless, if 100\% crack healing efficiency could be assumed for slabs made of self-healing ECC, CML-IA impacts remain lower than those of a slab made of traditional concrete with inclusion of the required cover replacements within 100 years.},
  author       = {Van den Heede, Philip and Mignon, Arn and Habert, Guillaume and De Belie, Nele},
  issn         = {0958-9465},
  journal      = {CEMENT \& CONCRETE COMPOSITES},
  language     = {eng},
  pages        = {166--180},
  title        = {Cradle-to-gate life cycle assessment of self-healing engineered cementitious composite with in-house developed (semi-)synthetic superabsorbent polymers},
  url          = {http://dx.doi.org/10.1016/j.cemconcomp.2018.08.017},
  volume       = {94},
  year         = {2018},
}

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