Mitigating salt damage in lime-based mortars with mixed-in crystallization modifiers

Sanne Granneman; Barbara Lubelli; Rob van Hees

Mitigating salt damage in lime-based mortars with mixed-in crystallization modifiers

Sanne Granneman, Barbara Lubelli, Rob van Hees

Heritage & Technology

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

35 Downloads (Pure)

Abstract

This paper presents the most important results of a research project which
focused on the use of crystallization modifiers mixed in lime mortar to mitigate
salt crystallization damage. The research focused on two of the most damaging
salts, sodium chloride and sodium sulfate, and suitable crystallization modifiers (sodium ferrocyanide and borax). We report the major findings related to the effectiveness of the modifiers when mixed in the mortar, and the results of characterization of the additivated mortars in comparison with reference mortars. Moreover, the durability of the developed mortars to salt decay is discussed, based on the results of an accelerated salt weathering test carried out in laboratory. No major effects of the modifiers on the fresh and hardened mortar properties were observed which might restrain the application of crystallization modifiers in restoration mortars. Additionally, the mortars with mixed-in modifiers showed a considerable improvement of the salt resistance when compared to reference mortars. Considering these results an outlook for future research pathways is given.

Original language	English
Title of host publication	Proceedings of SWBSS 2017
Subtitle of host publication	Fourth International Conference on Salt Weathering of Buildings and Stone Sculptures
Editors	S. Laue
Publisher	Fachhochschule Potsdam
Pages	100-107
ISBN (Print)	978-3-934329-88-1
Publication status	Published - 2017
Event	SWBSS 2017: 4th International Conference on Salt Weathering of Buildings and Stone Sculptures - Potsdam, Germany Duration: 20 Sept 2017 → 22 Sept 2017

Publication series

Name	Potsdamer Beiträge zur Konservierung und Restaurierung
Volume	6

Conference

Conference	SWBSS 2017: 4th International Conference on Salt Weathering of Buildings and Stone Sculptures
Country/Territory	Germany
City	Potsdam
Period	20/09/17 → 22/09/17

Bibliographical note

This paper was previously presented at and published in the Proceedings of the 4th WTA International PhD Symposium, 13-16 September, Delft, The Netherlands. The paper was reproduced for the SWBSS conference with permission of the organizing committee.

Keywords

crystallization modifiers
self-healing
lime mortar

Access to Document

SWBSS_2017_Proceedings_GrannemanFinal published version, 326 KBLicence: CC BY

Cite this

Granneman, S., Lubelli, B., & van Hees, R. (2017). Mitigating salt damage in lime-based mortars with mixed-in crystallization modifiers. In S. Laue (Ed.), Proceedings of SWBSS 2017: Fourth International Conference on Salt Weathering of Buildings and Stone Sculptures (pp. 100-107). (Potsdamer Beiträge zur Konservierung und Restaurierung; Vol. 6). Fachhochschule Potsdam.

Granneman, Sanne ; Lubelli, Barbara ; van Hees, Rob. / Mitigating salt damage in lime-based mortars with mixed-in crystallization modifiers. Proceedings of SWBSS 2017: Fourth International Conference on Salt Weathering of Buildings and Stone Sculptures. editor / S. Laue. Fachhochschule Potsdam, 2017. pp. 100-107 (Potsdamer Beiträge zur Konservierung und Restaurierung).

@inproceedings{038f0cfacbb74581b40c54f0045685ba,

title = "Mitigating salt damage in lime-based mortars with mixed-in crystallization modifiers",

abstract = "This paper presents the most important results of a research project whichfocused on the use of crystallization modifiers mixed in lime mortar to mitigatesalt crystallization damage. The research focused on two of the most damagingsalts, sodium chloride and sodium sulfate, and suitable crystallization modifiers (sodium ferrocyanide and borax). We report the major findings related to the effectiveness of the modifiers when mixed in the mortar, and the results of characterization of the additivated mortars in comparison with reference mortars. Moreover, the durability of the developed mortars to salt decay is discussed, based on the results of an accelerated salt weathering test carried out in laboratory. No major effects of the modifiers on the fresh and hardened mortar properties were observed which might restrain the application of crystallization modifiers in restoration mortars. Additionally, the mortars with mixed-in modifiers showed a considerable improvement of the salt resistance when compared to reference mortars. Considering these results an outlook for future research pathways is given.",

keywords = "crystallization modifiers, self-healing, lime mortar",

author = "Sanne Granneman and Barbara Lubelli and {van Hees}, Rob",

note = "This paper was previously presented at and published in the Proceedings of the 4th WTA International PhD Symposium, 13-16 September, Delft, The Netherlands. The paper was reproduced for the SWBSS conference with permission of the organizing committee.; SWBSS 2017: 4th International Conference on Salt Weathering of Buildings and Stone Sculptures ; Conference date: 20-09-2017 Through 22-09-2017",

year = "2017",

language = "English",

isbn = "978-3-934329-88-1",

series = "Potsdamer Beitr{\"a}ge zur Konservierung und Restaurierung",

publisher = "Fachhochschule Potsdam",

pages = "100--107",

editor = "S. Laue",

booktitle = "Proceedings of SWBSS 2017",

}

Granneman, S, Lubelli, B & van Hees, R 2017, Mitigating salt damage in lime-based mortars with mixed-in crystallization modifiers. in S Laue (ed.), Proceedings of SWBSS 2017: Fourth International Conference on Salt Weathering of Buildings and Stone Sculptures. Potsdamer Beiträge zur Konservierung und Restaurierung, vol. 6, Fachhochschule Potsdam, pp. 100-107, SWBSS 2017: 4th International Conference on Salt Weathering of Buildings and Stone Sculptures, Potsdam, Germany, 20/09/17.

Mitigating salt damage in lime-based mortars with mixed-in crystallization modifiers. / Granneman, Sanne; Lubelli, Barbara ; van Hees, Rob.
Proceedings of SWBSS 2017: Fourth International Conference on Salt Weathering of Buildings and Stone Sculptures. ed. / S. Laue. Fachhochschule Potsdam, 2017. p. 100-107 (Potsdamer Beiträge zur Konservierung und Restaurierung; Vol. 6).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Mitigating salt damage in lime-based mortars with mixed-in crystallization modifiers

AU - Granneman, Sanne

AU - Lubelli, Barbara

AU - van Hees, Rob

N1 - This paper was previously presented at and published in the Proceedings of the 4th WTA International PhD Symposium, 13-16 September, Delft, The Netherlands. The paper was reproduced for the SWBSS conference with permission of the organizing committee.

PY - 2017

Y1 - 2017

N2 - This paper presents the most important results of a research project whichfocused on the use of crystallization modifiers mixed in lime mortar to mitigatesalt crystallization damage. The research focused on two of the most damagingsalts, sodium chloride and sodium sulfate, and suitable crystallization modifiers (sodium ferrocyanide and borax). We report the major findings related to the effectiveness of the modifiers when mixed in the mortar, and the results of characterization of the additivated mortars in comparison with reference mortars. Moreover, the durability of the developed mortars to salt decay is discussed, based on the results of an accelerated salt weathering test carried out in laboratory. No major effects of the modifiers on the fresh and hardened mortar properties were observed which might restrain the application of crystallization modifiers in restoration mortars. Additionally, the mortars with mixed-in modifiers showed a considerable improvement of the salt resistance when compared to reference mortars. Considering these results an outlook for future research pathways is given.

AB - This paper presents the most important results of a research project whichfocused on the use of crystallization modifiers mixed in lime mortar to mitigatesalt crystallization damage. The research focused on two of the most damagingsalts, sodium chloride and sodium sulfate, and suitable crystallization modifiers (sodium ferrocyanide and borax). We report the major findings related to the effectiveness of the modifiers when mixed in the mortar, and the results of characterization of the additivated mortars in comparison with reference mortars. Moreover, the durability of the developed mortars to salt decay is discussed, based on the results of an accelerated salt weathering test carried out in laboratory. No major effects of the modifiers on the fresh and hardened mortar properties were observed which might restrain the application of crystallization modifiers in restoration mortars. Additionally, the mortars with mixed-in modifiers showed a considerable improvement of the salt resistance when compared to reference mortars. Considering these results an outlook for future research pathways is given.

KW - crystallization modifiers

KW - self-healing

KW - lime mortar

M3 - Conference contribution

SN - 978-3-934329-88-1

T3 - Potsdamer Beiträge zur Konservierung und Restaurierung

SP - 100

EP - 107

BT - Proceedings of SWBSS 2017

A2 - Laue, S.

PB - Fachhochschule Potsdam

T2 - SWBSS 2017: 4th International Conference on Salt Weathering of Buildings and Stone Sculptures

Y2 - 20 September 2017 through 22 September 2017

ER -

Mitigating salt damage in lime-based mortars with mixed-in crystallization modifiers

Abstract

Publication series

Conference

Bibliographical note

Keywords

Access to Document

Fingerprint

Cite this