Thermal behavior of cement based plastering mortar containing hybrid microencapsulated phase change materials

Kheradmand, Mohammad; Azenha, Miguel; Aguiar, J. L. Barroso de; Krakowiak, Konrad J.

doi:10.1016/j.enbuild.2014.08.010

Cited by 80 publications

(48 citation statements)

References 28 publications

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“…The used aerial lime has a purity of 90% and density of 2450 kg/m gypsum is a traditional one, with high fineness and density of 2740 kg/m 3 . The hydraulic lime is a natural lime (NHL5), with density of 2550 kg/m 3 . The used cement is a CEM II B-L 32.5N with density of 3030 kg/m 3 .…”

Section: Methodsmentioning

confidence: 99%

“…The mortars with incorporation of phase change materials (PCM) emerge as a possible solution in an attempt to solve, or minimize, the massive energetic consumption related to buildings. The use of this material allows the regulation of frequency of temperatures fluctuations, keeping them closer to the desired temperature range for a longer period, or at least reducing the need to use heating and cooling equipment, increasing the thermal inertia (1)(2)(3). This technique results in buildings with higher comfort parameters, improving the life conditions of their occupants, and preventing negative environmental impact.…”

Section: Introductionmentioning

confidence: 99%

“…For each composition, 3 prismatic specimens with 40×40×160 mm 3 were prepared. After their preparation, all the specimens were stored during 7 days in polyethylene bags, and subsequently placed in the laboratory at regular room temperature (about 22 °C) during 21 days.…”

Section: Flexural and Compression Strengthsmentioning

confidence: 99%

“…The obtained results allowed us to determine the water absorption by capillary of the different mortars. The capillary absorption coefficient was determined according to expression [3]:…”

Section: Water Absorption By Capillaritymentioning

confidence: 99%

See 3 more Smart Citations

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.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Flexural and Compression Strengthsmentioning

confidence: 99%

“…The obtained results allowed us to determine the water absorption by capillary of the different mortars. The capillary absorption coefficient was determined according to expression [3]:…”

Section: Water Absorption By Capillaritymentioning

confidence: 99%

See 2 more Smart Citations

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

Cunha¹,

Aguiar²,

Tadeu³

2015

Mater. construcc.

View full text Add to dashboard Cite

show abstract

“…In some cases, when mortar pumps of existing designs are used for applying plaster mixtures [1,2] on construction structures, residual pulsations of supply pressure take place at the main line exit. This leads to a loss of plastering mortar which no longer has necessary spraying properties after its bouncing from the plastered surfaces and falling on the floor.…”

Section: Introductionmentioning

confidence: 99%

Study of the operating element motion law for a hydraulic-driven diaphragm mortar pump

Korobko

Zadvorkin

Vasyliev

2017

EEJET

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Phase Change Materials as Smart Nanomaterials for Thermal Energy Storage in Buildings

Kheradmand

Abdollahzadeh

Azenha

et al. 2016

Intelligent Nanomaterials

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Nowadays, energy production and consumption in buildings play an important role in the economic development of countries. For instance, buildings are central to the EU's energy efficiency policy, as nearly 40% of final energy consumption and 36% of greenhouse gas emissions are attributable to houses, offices, shops, and other buildings. For achievement of highly energy-efficient buildings, significant paradigm shifts are necessary, particularly in the production requirements for cost-effective, durable, energy-efficient building envelopes. The application of phase change materials (PCMs) for thermal energy storage (TES) in building envelopes can assist the reduction of energy demands associated to the heating/ cooling necessary to ensure adequate inner thermal comfort. PCMs are defined as a group of materials that can store/release relevant quantities of thermal energy upon a change in their physical phase (latent heat). In many applications, such storage of energy leads to energy conservation within the system (i.e. the building), thus resulting in improved energy efficiency. Heat is absorbed or released when

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Thermal behavior of cement based plastering mortar containing hybrid microencapsulated phase change materials

Cited by 80 publications

References 28 publications

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

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

Study of the operating element motion law for a hydraulic-driven diaphragm mortar pump

Phase Change Materials as Smart Nanomaterials for Thermal Energy Storage in Buildings

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