Effects of sucrose on fresh-state and setting properties of air lime

Abstract

The use of sustainable additives such as sucrose for improving the properties of lime-based materials can contribute to a wider use of such low-carbon binders with applications in both civil engineering and conservation of the built heritage. Various sucrose-modified lime pastes were prepared, and their microstructure, fresh and hardened properties, and carbonation rate were assessed with an array of analytical techniques. It was found that sucrose acts as a water-reducing agent with relevant effects on both, fresh and hardened properties of pastes while allowing carbonation to occur homogeneously across the whole sample without the formation of carbonation rims. Such effects were enhanced when sucrose was added to the mixture after the slaking as pastes show higher mechanical strength and carbonate at a slower rate. When sucrose was added before the slaking, pastes show high elasticity, low mechanical strength, and carbonate faster due to their fine microstructure.

Metadata

Item Type:	Article
Authors/Creators:	Pesce, C. https://orcid.org/0000-0003-0266-0689 Pesce, G. https://orcid.org/0000-0001-6677-8622 Molinari, M. https://orcid.org/0000-0001-7144-6075 Corradi, M. https://orcid.org/0000-0003-3872-3303
Copyright, Publisher and Additional Information:	© The Author(s) 2023. Open Access: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Keywords:	Lime; Sucrose; Additives; Carbonation; Microstructure
Dates:	Published: September 2023 Published (online): 11 August 2023 Accepted: 1 August 2023
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield)
Depositing User:	Symplectic Sheffield
Date Deposited:	04 Oct 2023 11:41
Last Modified:	04 Oct 2023 11:41
Status:	Published
Publisher:	Springer Science and Business Media LLC
Refereed:	Yes
Identification Number:	10.1617/s11527-023-02219-4
Related URLs:	Author
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:203927

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Effects of sucrose on fresh-state and setting properties of air lime

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