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Poly(aspartic acid) superabsorbent polymers as biobased and biodegradable additives for self-sealing of cementitious mortar

Lauren De Grave (UGent) , José Roberto Tenório Filho (UGent) , Didier Snoeck, Sofiya Vynnytska (UGent) , Nele De Belie (UGent) , Katrien Bernaerts and Sandra Van Vlierberghe (UGent)
(2023) JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS. 12(8). p.925-940
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Abstract
Concrete is currently the most used man-made construction material. Unfortunately it is prone to defects, such as cracks. Crack repair is possible by incorporation of superabsorbent polymers (SAPs) which can fill a crack by swelling and promote formation of healing products. However, SAPs are usually acrylate-based and not biodegradable. Present work focuses on development of SAPs based on poly(aspartic acid) (PASP), which is a biobased and biodegradable alternative of acrylate-based polymers. The developed SAP was incorporated in mortar and the effect on the mortar properties was studied. When adding 1 m% SAP, a decrease in strength was observed, similar to commercially available acrylate-based SAPs. The SAPs showed an efficient and immediate sealing effect in cracked mortar, reflected by a reduction in water permeability over 50%. Hence, the developed biobased SAP shows good sealing properties and could be used as a sustainable alternative for acrylic SAPs in concrete repair.
Keywords
poly(aspartic acid), superabsorbent polymers, sustainable, cementitious materials, self-sealing, POLYASPARTIC ACID, AUTOGENOUS SHRINKAGE, WATER PERMEABILITY, SOIL CONDITIONER, CROSS-LINKING, IN-VITRO, CONCRETE, HYDROGELS, PERFORMANCE, DELIVERY

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Citation

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MLA
De Grave, Lauren, et al. “Poly(Aspartic Acid) Superabsorbent Polymers as Biobased and Biodegradable Additives for Self-Sealing of Cementitious Mortar.” JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS, vol. 12, no. 8, 2023, pp. 925–40, doi:10.1080/21650373.2022.2137861.
APA
De Grave, L., Tenório Filho, J. R., Snoeck, D., Vynnytska, S., De Belie, N., Bernaerts, K., & Van Vlierberghe, S. (2023). Poly(aspartic acid) superabsorbent polymers as biobased and biodegradable additives for self-sealing of cementitious mortar. JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS, 12(8), 925–940. https://doi.org/10.1080/21650373.2022.2137861
Chicago author-date
De Grave, Lauren, José Roberto Tenório Filho, Didier Snoeck, Sofiya Vynnytska, Nele De Belie, Katrien Bernaerts, and Sandra Van Vlierberghe. 2023. “Poly(Aspartic Acid) Superabsorbent Polymers as Biobased and Biodegradable Additives for Self-Sealing of Cementitious Mortar.” JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS 12 (8): 925–40. https://doi.org/10.1080/21650373.2022.2137861.
Chicago author-date (all authors)
De Grave, Lauren, José Roberto Tenório Filho, Didier Snoeck, Sofiya Vynnytska, Nele De Belie, Katrien Bernaerts, and Sandra Van Vlierberghe. 2023. “Poly(Aspartic Acid) Superabsorbent Polymers as Biobased and Biodegradable Additives for Self-Sealing of Cementitious Mortar.” JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS 12 (8): 925–940. doi:10.1080/21650373.2022.2137861.
Vancouver
1.
De Grave L, Tenório Filho JR, Snoeck D, Vynnytska S, De Belie N, Bernaerts K, et al. Poly(aspartic acid) superabsorbent polymers as biobased and biodegradable additives for self-sealing of cementitious mortar. JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS. 2023;12(8):925–40.
IEEE
[1]
L. De Grave et al., “Poly(aspartic acid) superabsorbent polymers as biobased and biodegradable additives for self-sealing of cementitious mortar,” JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS, vol. 12, no. 8, pp. 925–940, 2023.
@article{8770022,
  abstract     = {{Concrete is currently the most used man-made construction material. Unfortunately it is prone to defects, such as cracks. Crack repair is possible by incorporation of superabsorbent polymers (SAPs) which can fill a crack by swelling and promote formation of healing products. However, SAPs are usually acrylate-based and not biodegradable. Present work focuses on development of SAPs based on poly(aspartic acid) (PASP), which is a biobased and biodegradable alternative of acrylate-based polymers. The developed SAP was incorporated in mortar and the effect on the mortar properties was studied. When adding 1 m% SAP, a decrease in strength was observed, similar to commercially available acrylate-based SAPs. The SAPs showed an efficient and immediate sealing effect in cracked mortar, reflected by a reduction in water permeability over 50%. Hence, the developed biobased SAP shows good sealing properties and could be used as a sustainable alternative for acrylic SAPs in concrete repair.}},
  author       = {{De Grave, Lauren and Tenório Filho, José Roberto and Snoeck, Didier and Vynnytska, Sofiya and De Belie, Nele and Bernaerts, Katrien and Van Vlierberghe, Sandra}},
  issn         = {{2165-0373}},
  journal      = {{JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS}},
  keywords     = {{poly(aspartic acid),superabsorbent polymers,sustainable,cementitious materials,self-sealing,POLYASPARTIC ACID,AUTOGENOUS SHRINKAGE,WATER PERMEABILITY,SOIL CONDITIONER,CROSS-LINKING,IN-VITRO,CONCRETE,HYDROGELS,PERFORMANCE,DELIVERY}},
  language     = {{eng}},
  number       = {{8}},
  pages        = {{925--940}},
  title        = {{Poly(aspartic acid) superabsorbent polymers as biobased and biodegradable additives for self-sealing of cementitious mortar}},
  url          = {{http://doi.org/10.1080/21650373.2022.2137861}},
  volume       = {{12}},
  year         = {{2023}},
}
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