Centro de Território, Ambiente e Construção
Escola de Engenharia da Universidade do Minho
Campus de Azurém
4800-058 Guimarães, Portugal
Phone: + 351 253 510 200 (517 206)
Fax: + 351 253 510 217
Email: geral@ctac.uminho.pt
@JournalArticle {3132, title = {Characterization of innovative mortars with direct incorporation of phase change materials}, journal = {Journal of Energy Storage}, volume = {30}, year = {2020}, month = {2020-04-01 00:00:00}, abstract = {The utilization of innovative cement mortars with direct incorporation of non-encapsulated phase change materials (PCM) is a solution for minimize the high energetic consumption of buildings, due their ability in regulate the temperature inside the buildings. The development of construction material with PCM, based in macro and microencapsulation techniques has been developed. However, the utilization of these techniques has a high cost.
}, keywords = {Direct incorporation, Energy Efficiency, mechanical behaviour, Phase change materials, Physical behaviour, Thermal behaviour}, doi = {10.1016/j.est.2020.101439}, author = {Cunha, S. and Leite, P. and Aguiar, J. B.} }
The direct incorporation of non-encapsulated PCM allows the cost reduction, due to the absence of PCM encapsulation and complex incorporation techniques, representing an innovative and promising way to contribute significantly for the energy efficiency of buildings. Four different compositions were developed and characterized according to their physical, mechanical and thermal properties. The physical behaviour was evaluated based in some properties in the fresh and hardened state such as workability, density and water absorption. The mechanical performance was evaluated based in the flexural and compressive strengths. Finally, the developed mortars were thermally tested based in temperature laws representative of the north part of Portugal, with a resource to a climatic chamber and a data acquisition system. The obtained results showed a decrease in the water absorption due to the partial PCM occupation of the mortar pores. On the other hand, it was observed a slight decrease in the mechanical properties do to the presence of higher liquid binder ratio. Finally, regarding to the thermal tests it was verified a decrease in the extreme temperatures and cooling and heating needs. The mortar with 20\% of PCM presented the higher impact in the interior temperature regulation.
The Centre for Territory, Environment and Construction (CTAC) is a research unit of the School of Engineering of University of Minho (UMinho), recognised by the “FCT – Fundação para a Ciência e Tecnologia” (Foundation for Science and Technology), associated to the Department of Civil Engineering (DEC), with whom it shares resources and namely human resources.
Currently CTAC aggregates 25 researchers holding a PhD of which 20 are faculty professors of the Civil Engineering Department. Read more
Centro de Território, Ambiente e Construção
Escola de Engenharia da Universidade do Minho
Campus de Azurém
4800-058 Guimarães, Portugal
Phone: + 351 253 510 200 (517 206)
Fax: + 351 253 510 217
Email: geral@ctac.uminho.pt