Modification of High-Lime Dry Mixes for Restoration

Lime dry mixes for plaster and masonry are widely used for the restoration of architectural monuments. At the same time, lime mortars in modern conditions can be considered as insufficiently technological, since their hardening largely depends on the relative humidity of the ambient air and requires...

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Main Authors: Cherevko Sergey, Kharitonov Aleksey, Pukharenko Yuri, Kharitonova Tatiana
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/08/e3sconf_afe2023_02020.pdf
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author Cherevko Sergey
Kharitonov Aleksey
Pukharenko Yuri
Kharitonova Tatiana
author_facet Cherevko Sergey
Kharitonov Aleksey
Pukharenko Yuri
Kharitonova Tatiana
author_sort Cherevko Sergey
collection DOAJ
description Lime dry mixes for plaster and masonry are widely used for the restoration of architectural monuments. At the same time, lime mortars in modern conditions can be considered as insufficiently technological, since their hardening largely depends on the relative humidity of the ambient air and requires a rather long period of exposure to achieve normalized strength. This leads to a slowdown in the pace of work and a general increase in the cost of restoration. To overcome this shortcoming while maintaining other performance characteristics of the lime mortar unchanged, it is proposed to modify the composition of the mix by introducing an additive that accelerates setting and hardening in the optimal quality. In this paper, additives of various nature are considered. The most effective additives from the point of view of setting and hardening acceleration, but not radically changing the basic operational properties of the solidified mortar, have been determined. Compressive strength and vapor permeability were considered as the main properties of solutions.
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spelling doaj.art-705578b6759e4fb6bfcfc3a157b6e9862023-03-09T11:17:43ZengEDP SciencesE3S Web of Conferences2267-12422023-01-013710202010.1051/e3sconf/202337102020e3sconf_afe2023_02020Modification of High-Lime Dry Mixes for RestorationCherevko Sergey0Kharitonov Aleksey1Pukharenko Yuri2Kharitonova Tatiana3Saint-Petersburg State University of Architecture and Civil EngineeringSaint-Petersburg State University of Architecture and Civil EngineeringSaint-Petersburg State University of Architecture and Civil EngineeringSaint-Petersburg State University of Architecture and Civil EngineeringLime dry mixes for plaster and masonry are widely used for the restoration of architectural monuments. At the same time, lime mortars in modern conditions can be considered as insufficiently technological, since their hardening largely depends on the relative humidity of the ambient air and requires a rather long period of exposure to achieve normalized strength. This leads to a slowdown in the pace of work and a general increase in the cost of restoration. To overcome this shortcoming while maintaining other performance characteristics of the lime mortar unchanged, it is proposed to modify the composition of the mix by introducing an additive that accelerates setting and hardening in the optimal quality. In this paper, additives of various nature are considered. The most effective additives from the point of view of setting and hardening acceleration, but not radically changing the basic operational properties of the solidified mortar, have been determined. Compressive strength and vapor permeability were considered as the main properties of solutions.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/08/e3sconf_afe2023_02020.pdf
spellingShingle Cherevko Sergey
Kharitonov Aleksey
Pukharenko Yuri
Kharitonova Tatiana
Modification of High-Lime Dry Mixes for Restoration
E3S Web of Conferences
title Modification of High-Lime Dry Mixes for Restoration
title_full Modification of High-Lime Dry Mixes for Restoration
title_fullStr Modification of High-Lime Dry Mixes for Restoration
title_full_unstemmed Modification of High-Lime Dry Mixes for Restoration
title_short Modification of High-Lime Dry Mixes for Restoration
title_sort modification of high lime dry mixes for restoration
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/08/e3sconf_afe2023_02020.pdf
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