Influence of Adding Encapsulated Phase Change Materials in Aerial Lime Based Mortars

Cunha, Sandra; Aguiar, José; Ferreira, Victor; Tadeu, A.

doi:10.4028/www.scientific.net/amr.687.255

Cited by 31 publications

(47 citation statements)

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“…The incorporation of PCM in mortars based on aerial lime has already being developed by this research group (Cunha, Aguiar, Ferreira, & Tadeu, 2013;Cunha, Aguiar, Kheradmend, Bragança, & Ferreira, 2013;Cunha, Alves, Aguiar, & Ferreira, 2012).…”

Section: Introductionmentioning

confidence: 99%

Mortars based in different binders with incorporation of phase-change materials: Physical and mechanical properties

Cunha

Aguiar

Ferreira

et al. 2015

European Journal of Environmental and Civil Engineering

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In a society with a high growth rate and increased standards of comfort arises the need to minimise the currently high-energy consumption by taking advantage of renewable energy sources. The mortars with incorporation of phase-change materials (PCM) have the ability to regulate the temperature inside buildings, contributing to the thermal comfort and reduction in the use of heating and cooling equipment, using only the energy supplied by the sun. However, the incorporation of phase-change materials in mortars modifies its characteristics. The main purpose of this study was the production and characterisation in the fresh and hardened state of mortars with incorporation of different contents of PCM in mortars based in different binders. The binders studied were aerial lime, hydraulic lime, gypsum and cement. For each type of binder, different mortars were developed with different content of PCM. The proportion of PCM studied was 0, 20, 40 and 60% of the mass of the sand. It was possible to observe that the incorporation of PCM in mortars caused differences in properties such as workability, microstructure, compressive strength, flexural strength and adhesion.

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Section: Introductionmentioning

confidence: 99%

Mortars based in different binders with incorporation of phase-change materials: Physical and mechanical properties

Cunha

Aguiar

Ferreira

et al. 2015

European Journal of Environmental and Civil Engineering

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“…Foram caracterizadas nove composições distintas, com o principal objetivo de determinar o seu desempenho geral (Tabela 1). A selecção das mesmas foi baseada em trabalhos anteriores dos autores [4,14,[21][22][23][24].…”

Section: Composiçõesunclassified

“…A incorporação de microcápsulas de PCM em betão e argamassas também foi alvo de investigação [14][15][16][17]. Existem também outros estudos com incorporação de PCM em materiais de construção, como por exemplo painéis de PVC, blocos e tijolos [18][19][20].…”

Section: Introductionunclassified

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Classificação de argamassas com incorporação de materiais de mudança de fase com base nas suas propriedades físicas, mecânicas e térmicas

et al. 2019

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RESUMOActualmente, existem várias argamassas disponiveis para aplicação na industria da construção. Estas argamassas podem ser baseadas em diferentes ligantes, possuir diferentes propriedades fisicas e mecânicas e até mesmo outras propriedades especificas. Contudo, a correta selecção de uma argamassa torna-se cada vez mais dificil. Assim, surge a necessidade de classificar diferentes argamassas com base em critérios especificos e num procedimento único. Desta forma, será possivel identificar as argamassas mais apropriadas de acordo com a sua função. Neste trabalho foi utilizado um procedimento de classificação de materiais desenvolvido por Czarnecki e Lukowski, com base numa função de usabilidade. O procedimento de classificação transforma os resultados experimentais de várias propriedades num único valor numérico. Desta forma, os produtos de construção podem ser classificados de acordo com as suas propriedades individuais ou uma combinação optimizada de várias propriedades. Assim, o principal objectivo deste estudo consiste na classificação de argamassas à base de diferentes ligantes com incorporação de materiais de mudança de fase (PCM). Os ligantes estudados foram a cal hidráulica, gesso e cimento. Para cada ligante foram desenvolvidas três argamassas distintas, uma argamassa de referência (0% PCM), uma argamassa com incorporação de 40% de PCM e uma argamassa com incorporação de 40% de PCM e 1% de fibras. Com base nos resultados foi possivel concluir que a incorporação de PCM afecta o desempenho global das argamassas.Palavras-chave: Argamassas, Materiais de mudança de fase (PCM), Propriedades mêcanicas, Propriedades físicas, Propriedades térmicas. ABSTRACTCurrently, there are several mortars available for application in the construction industry. These mortars can be based on different binders, have different physical and mechanical properties and even other specific properties. However, the correct selection of a mortar becomes increasingly difficult. Thus, comes up the need to classify different mortars based on a specific criteria and a single procedure. In this way, it will be possible to identify the most appropriate mortars according to their function. In this research, a materials ranking procedure developed by Czarnecki and Lukowski is applied, based on an usability function. The ranking procedure transforms experimental results of properties into one numerical value. The products can be classified according to their individual properties or even an optimized combination of different properties. Thus, the main purpose of this study was the ranking of mortars based in different binders with incorporation CUNHA, S.; AGUIAR, J.; FERREIRA, V.; TADEU, A. revista Matéria, v.24, n.2, 2019. of phase change materials. Hydraulic lime, gypsum and cement were the binders studied. For each binder, three different mortars were developed, reference mortars (0% PCM), mortars with incorporation of 40% of PCM and mortars with incorporation of 40% of PCM and 1% of fibers. Based on the results it was possible to conclu...

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“…The selection of the mortars takes into account some previous work (10,11,(19)(20)(21). Mortars were based on the following binders: aerial lime, hydraulic lime, gypsum and cement.…”

Section: Methodsmentioning

confidence: 99%

Ranking procedure based on mechanical, durability and thermal behavior of mortars with incorporation of phase change materials

Cunha¹,

Aguiar²,

Tadeu³

2015

Mater. construcc.

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Nowadays, considering the high variety of construction products, adequate material selection, based on their properties and function, becomes increasingly important. In this research, a ranking procedure developed by Czarnecki and Lukowski is applied in mortars with incorporation of phase change materials (PCM). The ranking procedure transforms experimental results of properties into one numerical value. The products can be classified according to their individual properties or even an optimized combination of different properties. The main purpose of this study was the ranking of mortars with incorporation of different contents of PCM based in different binders. Aerial lime, hydraulic lime, gypsum and cement were the binders studied. For each binder, three different mortars were developed. Reference mortars, mortars with incorporation of 40% of PCM and mortars with incorporation of 40% of PCM and 1% of fibers, were tested. Results show that the incorporation of PCM in mortars changes their global performance. RESUMEN: Procedimiento de clasificación de morteros con incorporación de materiales de cambio de fase basado en el comportamiento mecánico, durabilidad y comportamiento térmico.Actualmente, existen varios productos de construcción, siendo importante una adecuada selección, con base en sus principales propiedades y funciones. En esta investigación se aplicó un procedimiento de clasificación desarrollado por Czarnecki y Lukowski, en morteros con incorporación de materiales de cambio de fase (PCM). Este procedimiento transforma los resultados experimentales de las propiedades en un único valor numérico. Los productos se clasifican de acuerdo con sus propiedades individuales o en una combinación optimizada de diferentes propiedades. El principal objetivo de este estudio fue la clasificación de morteros basado en los diferentes aglutinantes con incorporación de diferentes cantidades de PCM. Los aglutinantes utilizados fueran la cal aérea, cal hidráulica, yeso y cemento. Para cada aglutinante se han desarrollado tres morteros, siendo morteros de referencia, con incorporación de 40% de PCM y con incorporación de 40% de PCM y 1% de fibras. Fue observado que la incorporación de PCM en morteros cambia su comportamiento global.

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Influence of Adding Encapsulated Phase Change Materials in Aerial Lime Based Mortars

Cited by 31 publications

References 3 publications

Mortars based in different binders with incorporation of phase-change materials: Physical and mechanical properties

Mortars based in different binders with incorporation of phase-change materials: Physical and mechanical properties

Classificação de argamassas com incorporação de materiais de mudança de fase com base nas suas propriedades físicas, mecânicas e térmicas

Ranking procedure based on mechanical, durability and thermal behavior of mortars with incorporation of phase change materials

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