Chitosan as a carbonation catalyst in lime mortars

The investigation evaluates the influence of unmodified chitosan on the carbonation behavior of aerial lime mortars, determining the main properties in hardened state. The work was developed experimentally, starting from lime pastes elaborated according to European Standards. Initially, different co...

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Main Authors: Marisa Carmona-Carmona, Patricia Acedo-Fuentes, Antonio Romero-Casado, Juan-Miguel Meneses-Rodríguez, Mario Trujillo-Gómez, Juan-José Tejado-Ramos
Format: Article
Language:English
Published: Elsevier 2023-03-01
Series:Results in Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590123023000397
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author Marisa Carmona-Carmona
Patricia Acedo-Fuentes
Antonio Romero-Casado
Juan-Miguel Meneses-Rodríguez
Mario Trujillo-Gómez
Juan-José Tejado-Ramos
author_facet Marisa Carmona-Carmona
Patricia Acedo-Fuentes
Antonio Romero-Casado
Juan-Miguel Meneses-Rodríguez
Mario Trujillo-Gómez
Juan-José Tejado-Ramos
author_sort Marisa Carmona-Carmona
collection DOAJ
description The investigation evaluates the influence of unmodified chitosan on the carbonation behavior of aerial lime mortars, determining the main properties in hardened state. The work was developed experimentally, starting from lime pastes elaborated according to European Standards. Initially, different contents of chitosan were dissolved in the mixing water, keeping constant the quantity of aerial lime and water, according to the consistency standardized by the type of lime. The samples cured for 4 days in an oven at 30 °C, were subjected to a carbonation process. The carbonation conditions established for the lime samples, with and without chitosan, were in all cases the same. It was observed that the chitosan content positively influences the kinetic reactions of lime with CO2, modifying its mineralogical, macro and microstructural properties and improving its mechanical behavior.
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spelling doaj.art-b32045ebb0f14bdc9df8f831dddb8bf42023-01-26T04:47:26ZengElsevierResults in Engineering2590-12302023-03-0117100912Chitosan as a carbonation catalyst in lime mortarsMarisa Carmona-Carmona0Patricia Acedo-Fuentes1Antonio Romero-Casado2Juan-Miguel Meneses-Rodríguez3Mario Trujillo-Gómez4Juan-José Tejado-Ramos5Corresponding author..; Technological Institute of Ornamental Rocks and Building Materials, INTROMAC, SpainTechnological Institute of Ornamental Rocks and Building Materials, INTROMAC, SpainTechnological Institute of Ornamental Rocks and Building Materials, INTROMAC, SpainTechnological Institute of Ornamental Rocks and Building Materials, INTROMAC, SpainTechnological Institute of Ornamental Rocks and Building Materials, INTROMAC, SpainTechnological Institute of Ornamental Rocks and Building Materials, INTROMAC, SpainThe investigation evaluates the influence of unmodified chitosan on the carbonation behavior of aerial lime mortars, determining the main properties in hardened state. The work was developed experimentally, starting from lime pastes elaborated according to European Standards. Initially, different contents of chitosan were dissolved in the mixing water, keeping constant the quantity of aerial lime and water, according to the consistency standardized by the type of lime. The samples cured for 4 days in an oven at 30 °C, were subjected to a carbonation process. The carbonation conditions established for the lime samples, with and without chitosan, were in all cases the same. It was observed that the chitosan content positively influences the kinetic reactions of lime with CO2, modifying its mineralogical, macro and microstructural properties and improving its mechanical behavior.http://www.sciencedirect.com/science/article/pii/S2590123023000397ChitosanLime mortarCarbonationConstruction
spellingShingle Marisa Carmona-Carmona
Patricia Acedo-Fuentes
Antonio Romero-Casado
Juan-Miguel Meneses-Rodríguez
Mario Trujillo-Gómez
Juan-José Tejado-Ramos
Chitosan as a carbonation catalyst in lime mortars
Results in Engineering
Chitosan
Lime mortar
Carbonation
Construction
title Chitosan as a carbonation catalyst in lime mortars
title_full Chitosan as a carbonation catalyst in lime mortars
title_fullStr Chitosan as a carbonation catalyst in lime mortars
title_full_unstemmed Chitosan as a carbonation catalyst in lime mortars
title_short Chitosan as a carbonation catalyst in lime mortars
title_sort chitosan as a carbonation catalyst in lime mortars
topic Chitosan
Lime mortar
Carbonation
Construction
url http://www.sciencedirect.com/science/article/pii/S2590123023000397
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AT juanmiguelmenesesrodriguez chitosanasacarbonationcatalystinlimemortars
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