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Effect of the preparation of lime putties on their properties
In the study of lime as the basic component of historical mortars and plasters, four lime putties prepared from various kinds of lime of various granulometry and by various ways of preparation were evaluated. The rheological properties and micro-morphologic changes, growing of calcite crystals, and...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5722907/ https://www.ncbi.nlm.nih.gov/pubmed/29222495 http://dx.doi.org/10.1038/s41598-017-17527-3 |
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author | Navrátilová, Eva Tihlaříková, Eva Neděla, Vilém Rovnaníková, Pavla Pavlík, Jaroslav |
author_facet | Navrátilová, Eva Tihlaříková, Eva Neděla, Vilém Rovnaníková, Pavla Pavlík, Jaroslav |
author_sort | Navrátilová, Eva |
collection | PubMed |
description | In the study of lime as the basic component of historical mortars and plasters, four lime putties prepared from various kinds of lime of various granulometry and by various ways of preparation were evaluated. The rheological properties and micro-morphologic changes, growing of calcite crystals, and rate of carbonation were monitored. The lime putty prepared from lump lime achieves the best rheological properties, yield stress 214.7 Pa and plastic viscosity 2.6 Pa·s. The suitability of this lime putty was checked by testing the development of calcium hydroxide and calcite crystals using scanning electron microscopy and environmental scanning electron microscopy. The disordered crystals of calcium hydroxide exhibit better carbonation resulting in the large crystals of calcite; therefore, the mortar prepared from the lump lime has the highest flexural strength and compressive strength 0.8/2.5 MPa, its carbonation is the fastest and exhibits the longest durability. Also, thanks to the micro-morphological characterization of samples in their native state by means of environmental scanning electron microscopy, the new way of lime putty preparation by mixing was proven. The preparation consists in the mechanical crash of the lime particles immediately after hydration. This enables the properties of putty prepared from lump lime to be nearly reached. |
format | Online Article Text |
id | pubmed-5722907 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-57229072017-12-12 Effect of the preparation of lime putties on their properties Navrátilová, Eva Tihlaříková, Eva Neděla, Vilém Rovnaníková, Pavla Pavlík, Jaroslav Sci Rep Article In the study of lime as the basic component of historical mortars and plasters, four lime putties prepared from various kinds of lime of various granulometry and by various ways of preparation were evaluated. The rheological properties and micro-morphologic changes, growing of calcite crystals, and rate of carbonation were monitored. The lime putty prepared from lump lime achieves the best rheological properties, yield stress 214.7 Pa and plastic viscosity 2.6 Pa·s. The suitability of this lime putty was checked by testing the development of calcium hydroxide and calcite crystals using scanning electron microscopy and environmental scanning electron microscopy. The disordered crystals of calcium hydroxide exhibit better carbonation resulting in the large crystals of calcite; therefore, the mortar prepared from the lump lime has the highest flexural strength and compressive strength 0.8/2.5 MPa, its carbonation is the fastest and exhibits the longest durability. Also, thanks to the micro-morphological characterization of samples in their native state by means of environmental scanning electron microscopy, the new way of lime putty preparation by mixing was proven. The preparation consists in the mechanical crash of the lime particles immediately after hydration. This enables the properties of putty prepared from lump lime to be nearly reached. Nature Publishing Group UK 2017-12-08 /pmc/articles/PMC5722907/ /pubmed/29222495 http://dx.doi.org/10.1038/s41598-017-17527-3 Text en © The Author(s) 2017 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Navrátilová, Eva Tihlaříková, Eva Neděla, Vilém Rovnaníková, Pavla Pavlík, Jaroslav Effect of the preparation of lime putties on their properties |
title | Effect of the preparation of lime putties on their properties |
title_full | Effect of the preparation of lime putties on their properties |
title_fullStr | Effect of the preparation of lime putties on their properties |
title_full_unstemmed | Effect of the preparation of lime putties on their properties |
title_short | Effect of the preparation of lime putties on their properties |
title_sort | effect of the preparation of lime putties on their properties |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5722907/ https://www.ncbi.nlm.nih.gov/pubmed/29222495 http://dx.doi.org/10.1038/s41598-017-17527-3 |
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