Microencapsulated spores and growth media for self-healing mortars

Kevin Paine; Ilaria Horne; Linzhen Tan; Trupti Sharma; Andrew Heath; Richard Cooper; Jon Virgoe; David Palmer; Alex Kerr

Microencapsulated spores and growth media for self-healing mortars

Kevin Paine, Ilaria Horne, Linzhen Tan, Trupti Sharma, Andrew Heath, Richard Cooper, Jon Virgoe, David Palmer, Alex Kerr

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

8 Citations (SciVal)

Abstract

The paper reports on a study to use synthesised gelatin/acacia gum microcapsules as a carrier for spores and growth media for self-healing mortar. The microcapsules were created using complex coacervation. It was found that encapsulation of spores of Bacillus pseudofirmus was relatively straightforward. However, because elements of the growth media were water-soluble it was necessary to use an emulsion stabiliser to create suitable microcapsules. The microcapsules were added to cement mortars and pastes to investigate their effect on early-age properties and their self-healing capability. Isothermal conduction calorimetry showed that the microcapsules had few effects on the hydration of cement and that they survived the mixing process as designed. Tests were carried out to determine the self-healing capability by means of capillary absorption. Cal-cite precipitation and crack closure was observed in the mortar that contained both encapsulated spores and growth media.

Original language	English
Title of host publication	Life-Cycle Analysis and Assessment in Civil Engineering
Subtitle of host publication	Towards an Integrated Vision
Editors	Robby Caspeele, Luc Taerwe, Dan M. Frangopol
Place of Publication	London, U. K.
Publisher	CRC Press
Pages	2247-2254
Number of pages	8
ISBN (Electronic)	9781315228914
ISBN (Print)	9781138626331
Publication status	Published - 10 Oct 2018
Event	Sixth International Symposium on Life-Cycle Civil Engineering - Ghent, Belgium Duration: 28 Oct 2018 → 31 Oct 2018

Publication series

Name	Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision - Proceedings of the 6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018

Conference

Conference	Sixth International Symposium on Life-Cycle Civil Engineering
Abbreviated title	IALCCE 2018
Country/Territory	Belgium
City	Ghent
Period	28/10/18 → 31/10/18

Cite this

Paine, K., Horne, I., Tan, L., Sharma, T., Heath, A., Cooper, R., Virgoe, J., Palmer, D., & Kerr, A. (2018). Microencapsulated spores and growth media for self-healing mortars. In R. Caspeele, L. Taerwe, & D. M. Frangopol (Eds.), Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision (pp. 2247-2254). (Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision - Proceedings of the 6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018). CRC Press.

Microencapsulated spores and growth media for self-healing mortars. / Paine, Kevin; Horne, Ilaria; Tan, Linzhen et al.
Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision. ed. / Robby Caspeele; Luc Taerwe; Dan M. Frangopol. London, U. K.: CRC Press, 2018. p. 2247-2254 (Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision - Proceedings of the 6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018).

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

Paine, K, Horne, I, Tan, L, Sharma, T, Heath, A, Cooper, R, Virgoe, J, Palmer, D & Kerr, A 2018, Microencapsulated spores and growth media for self-healing mortars. in R Caspeele, L Taerwe & DM Frangopol (eds), Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision. Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision - Proceedings of the 6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018, CRC Press, London, U. K., pp. 2247-2254, Sixth International Symposium on Life-Cycle Civil Engineering, Ghent, Belgium, 28/10/18.

Paine K, Horne I, Tan L, Sharma T, Heath A, Cooper R et al. Microencapsulated spores and growth media for self-healing mortars. In Caspeele R, Taerwe L, Frangopol DM, editors, Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision. London, U. K.: CRC Press. 2018. p. 2247-2254. (Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision - Proceedings of the 6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018).

Paine, Kevin ; Horne, Ilaria ; Tan, Linzhen et al. / Microencapsulated spores and growth media for self-healing mortars. Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision. editor / Robby Caspeele ; Luc Taerwe ; Dan M. Frangopol. London, U. K. : CRC Press, 2018. pp. 2247-2254 (Life-Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision - Proceedings of the 6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018).

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abstract = "The paper reports on a study to use synthesised gelatin/acacia gum microcapsules as a carrier for spores and growth media for self-healing mortar. The microcapsules were created using complex coacervation. It was found that encapsulation of spores of Bacillus pseudofirmus was relatively straightforward. However, because elements of the growth media were water-soluble it was necessary to use an emulsion stabiliser to create suitable microcapsules. The microcapsules were added to cement mortars and pastes to investigate their effect on early-age properties and their self-healing capability. Isothermal conduction calorimetry showed that the microcapsules had few effects on the hydration of cement and that they survived the mixing process as designed. Tests were carried out to determine the self-healing capability by means of capillary absorption. Cal-cite precipitation and crack closure was observed in the mortar that contained both encapsulated spores and growth media.",

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AU - Cooper, Richard

AU - Virgoe, Jon

AU - Palmer, David

AU - Kerr, Alex

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AB - The paper reports on a study to use synthesised gelatin/acacia gum microcapsules as a carrier for spores and growth media for self-healing mortar. The microcapsules were created using complex coacervation. It was found that encapsulation of spores of Bacillus pseudofirmus was relatively straightforward. However, because elements of the growth media were water-soluble it was necessary to use an emulsion stabiliser to create suitable microcapsules. The microcapsules were added to cement mortars and pastes to investigate their effect on early-age properties and their self-healing capability. Isothermal conduction calorimetry showed that the microcapsules had few effects on the hydration of cement and that they survived the mixing process as designed. Tests were carried out to determine the self-healing capability by means of capillary absorption. Cal-cite precipitation and crack closure was observed in the mortar that contained both encapsulated spores and growth media.

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T2 - Sixth International Symposium on Life-Cycle Civil Engineering

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ER -

Microencapsulated spores and growth media for self-healing mortars

Abstract

Publication series

Conference

Other files and links

Fingerprint

RM4L - Resilient Materials for Life

Bacteria based self-healing concrete

M4L: Materials for Life

Cite this

Microencapsulated spores and growth media for self-healing mortars

Abstract

Publication series

Conference

Other files and links

Fingerprint

Projects

RM4L - Resilient Materials for Life

Bacteria based self-healing concrete

M4L: Materials for Life

Cite this