Self-healing and Mechanical Property of UHPC Incorporating Sporosarcina Pasteurii

Yuxiang Tan; Alessandro Mattedi; Enrico Marsili; Weizhuo Shi

doi:10.1007/978-3-032-27698-8_22

Self-healing and Mechanical Property of UHPC Incorporating Sporosarcina Pasteurii

Yuxiang Tan
, Alessandro Mattedi
, Enrico Marsili
, Weizhuo Shi^*

^*Corresponding author for this work

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

Abstract

The low water-to-binder ratio of ultra-high performance concrete (UHPC) can result in early-age shrinkage and cracking due to self-desiccation. Bacterial self-healing of cracks represents an environmentally friendly and sustainable approach compatible with concrete. Sporosarcina Pasteurii can form endospores which are resistant to the alkaline environment of the concrete matrix. As a porous cementitious supplementary material, natural zeolite is used to immobilize bacteria without disrupting the matrix. This study investigates the effect of incorporating natural zeolite-immobilized S. Pasteurii into non-proprietary UHPC on mechanical properties and self-healing performance via compressive strength tests and crack healing assessments. Four mixtures containing different BZP content levels were prepared and assessed up to 56 days of age. Results show that cracks up to 0.38 mm can be completely healed by 28 days of age. Moreover, S. Pasteurii in UHPC remained viable after 56 days.

Original language	English
Title of host publication	Proceedings of the 2nd International Conference on Net-Zero Built Environment - Innovations in Materials, Structures, and Management Practices Net-Zero Future 2025
Editors	Hans Beushausen, Mahdi Kioumarsi, Behrouz Shafei
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	234-245
Number of pages	12
ISBN (Print)	9783032276971
DOIs	https://doi.org/10.1007/978-3-032-27698-8_22
Publication status	Published - 2026
Event	2nd International Conference on Net-Zero Built Environment: Innovations in Materials, Structures, and Management Practices, NTZR 2025 - Cape Town, South Africa Duration: 5 Nov 2025 → 7 Nov 2025

Publication series

Name	Lecture Notes in Civil Engineering
Volume	873 LNCE
ISSN (Print)	2366-2557
ISSN (Electronic)	2366-2565

Conference

Conference	2nd International Conference on Net-Zero Built Environment: Innovations in Materials, Structures, and Management Practices, NTZR 2025
Country/Territory	South Africa
City	Cape Town
Period	5/11/25 → 7/11/25

Free Keywords

bacteria
self-healing
ultra-high performance concrete

ASJC Scopus subject areas

Civil and Structural Engineering

Access to Document

10.1007/978-3-032-27698-8_22

Cite this

Tan, Y., Mattedi, A., Marsili, E., & Shi, W. (2026). Self-healing and Mechanical Property of UHPC Incorporating Sporosarcina Pasteurii. In H. Beushausen, M. Kioumarsi, & B. Shafei (Eds.), Proceedings of the 2nd International Conference on Net-Zero Built Environment - Innovations in Materials, Structures, and Management Practices Net-Zero Future 2025 (pp. 234-245). (Lecture Notes in Civil Engineering; Vol. 873 LNCE). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-3-032-27698-8_22

Tan, Yuxiang ; Mattedi, Alessandro ; Marsili, Enrico et al. / Self-healing and Mechanical Property of UHPC Incorporating Sporosarcina Pasteurii. Proceedings of the 2nd International Conference on Net-Zero Built Environment - Innovations in Materials, Structures, and Management Practices Net-Zero Future 2025. editor / Hans Beushausen ; Mahdi Kioumarsi ; Behrouz Shafei. Springer Science and Business Media Deutschland GmbH, 2026. pp. 234-245 (Lecture Notes in Civil Engineering).

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abstract = "The low water-to-binder ratio of ultra-high performance concrete (UHPC) can result in early-age shrinkage and cracking due to self-desiccation. Bacterial self-healing of cracks represents an environmentally friendly and sustainable approach compatible with concrete. Sporosarcina Pasteurii can form endospores which are resistant to the alkaline environment of the concrete matrix. As a porous cementitious supplementary material, natural zeolite is used to immobilize bacteria without disrupting the matrix. This study investigates the effect of incorporating natural zeolite-immobilized S. Pasteurii into non-proprietary UHPC on mechanical properties and self-healing performance via compressive strength tests and crack healing assessments. Four mixtures containing different BZP content levels were prepared and assessed up to 56 days of age. Results show that cracks up to 0.38 mm can be completely healed by 28 days of age. Moreover, S. Pasteurii in UHPC remained viable after 56 days.",

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author = "Yuxiang Tan and Alessandro Mattedi and Enrico Marsili and Weizhuo Shi",

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Tan, Y, Mattedi, A, Marsili, E & Shi, W 2026, Self-healing and Mechanical Property of UHPC Incorporating Sporosarcina Pasteurii. in H Beushausen, M Kioumarsi & B Shafei (eds), Proceedings of the 2nd International Conference on Net-Zero Built Environment - Innovations in Materials, Structures, and Management Practices Net-Zero Future 2025. Lecture Notes in Civil Engineering, vol. 873 LNCE, Springer Science and Business Media Deutschland GmbH, pp. 234-245, 2nd International Conference on Net-Zero Built Environment: Innovations in Materials, Structures, and Management Practices, NTZR 2025, Cape Town, South Africa, 5/11/25. https://doi.org/10.1007/978-3-032-27698-8_22

Self-healing and Mechanical Property of UHPC Incorporating Sporosarcina Pasteurii. / Tan, Yuxiang; Mattedi, Alessandro; Marsili, Enrico et al.
Proceedings of the 2nd International Conference on Net-Zero Built Environment - Innovations in Materials, Structures, and Management Practices Net-Zero Future 2025. ed. / Hans Beushausen; Mahdi Kioumarsi; Behrouz Shafei. Springer Science and Business Media Deutschland GmbH, 2026. p. 234-245 (Lecture Notes in Civil Engineering; Vol. 873 LNCE).

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

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T1 - Self-healing and Mechanical Property of UHPC Incorporating Sporosarcina Pasteurii

AU - Tan, Yuxiang

AU - Mattedi, Alessandro

AU - Marsili, Enrico

AU - Shi, Weizhuo

N1 - Publisher Copyright: © The Author(s) 2026.

PY - 2026

Y1 - 2026

N2 - The low water-to-binder ratio of ultra-high performance concrete (UHPC) can result in early-age shrinkage and cracking due to self-desiccation. Bacterial self-healing of cracks represents an environmentally friendly and sustainable approach compatible with concrete. Sporosarcina Pasteurii can form endospores which are resistant to the alkaline environment of the concrete matrix. As a porous cementitious supplementary material, natural zeolite is used to immobilize bacteria without disrupting the matrix. This study investigates the effect of incorporating natural zeolite-immobilized S. Pasteurii into non-proprietary UHPC on mechanical properties and self-healing performance via compressive strength tests and crack healing assessments. Four mixtures containing different BZP content levels were prepared and assessed up to 56 days of age. Results show that cracks up to 0.38 mm can be completely healed by 28 days of age. Moreover, S. Pasteurii in UHPC remained viable after 56 days.

AB - The low water-to-binder ratio of ultra-high performance concrete (UHPC) can result in early-age shrinkage and cracking due to self-desiccation. Bacterial self-healing of cracks represents an environmentally friendly and sustainable approach compatible with concrete. Sporosarcina Pasteurii can form endospores which are resistant to the alkaline environment of the concrete matrix. As a porous cementitious supplementary material, natural zeolite is used to immobilize bacteria without disrupting the matrix. This study investigates the effect of incorporating natural zeolite-immobilized S. Pasteurii into non-proprietary UHPC on mechanical properties and self-healing performance via compressive strength tests and crack healing assessments. Four mixtures containing different BZP content levels were prepared and assessed up to 56 days of age. Results show that cracks up to 0.38 mm can be completely healed by 28 days of age. Moreover, S. Pasteurii in UHPC remained viable after 56 days.

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Tan Y, Mattedi A, Marsili E , Shi W. Self-healing and Mechanical Property of UHPC Incorporating Sporosarcina Pasteurii. In Beushausen H, Kioumarsi M, Shafei B, editors, Proceedings of the 2nd International Conference on Net-Zero Built Environment - Innovations in Materials, Structures, and Management Practices Net-Zero Future 2025. Springer Science and Business Media Deutschland GmbH. 2026. p. 234-245. (Lecture Notes in Civil Engineering). doi: 10.1007/978-3-032-27698-8_22

Self-healing and Mechanical Property of UHPC Incorporating Sporosarcina Pasteurii

Abstract

Publication series

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Free Keywords

ASJC Scopus subject areas

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