Mortars with Phase Change Materials - Part II: Durability Evaluation

Article Preview

Abstract:

The industry of construction is responsible for the high consumption of raw materials, energy and waste production. As such, it becomes imperative to develop and study new constructive solutions with greater sustainable value. The mortars with incorporation of phase change materials (PCM) have the ability to regulate the temperature inside buildings, contributing to the thermal comfort and reducing 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 focus of this study was the durability of mortars with PCM incorporation 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% and 40% of the mass of the sand. It was possible to observe that the incorporation of PCM in mortars caused differences in properties such as water absorption by capillarity, water absorption by immersion and degradation after freeze-thaw cycles.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

33-45

Citation:

Online since:

December 2014

Export:

Price:

* - Corresponding Author

[1] A. Azevedo, Betões de elevado desempenho com incorporação de cinzas volantes, PhD Thesis, Department of Civil Engineering, University of Minho (2002).

Google Scholar

[2] A. Izaguirre, J. Lanas, J. Álvarez, Ageing of lime mortars with admixtures: Durability and strength assessment, Cement and Concrete Research. 40 (2010) 1081-1095.

DOI: 10.1016/j.cemconres.2010.02.013

Google Scholar

[3] Y. Zhang, G. Zhou, K. Lin, K. Zhang, H. Di, Application of latent heat thermal energy storage in buildings: State-of-the-art and outlook, Build Environ. 42 (2007) 2197-2209.

DOI: 10.1016/j.buildenv.2006.07.023

Google Scholar

[4] B. Zalba, J. Marín, L. Cabeza, H. Mehling, Review on thermal energy storage with phase change: materials, heat transfer analysis and applications, Appl Therm Eng. 23 (2003) 251-283.

DOI: 10.1016/s1359-4311(02)00192-8

Google Scholar

[5] L. Cabeza, A. Castell, C. Barreneche, A. Gracia, A. Fernández, Materials used as PCM in thermal energy storage in buildings: A review, Renew Sustainable Energy Reviews. 15 (2011) 1675-1695.

DOI: 10.1016/j.rser.2010.11.018

Google Scholar

[6] V. Tyagi, S. Kaushik, S. Tyagi, T. Akiyama, Development of phase change materials based microencapsulated technology for buildings: A review, Renew Sustainable Energy Reviews. 15 (2011) 1373-1391.

DOI: 10.1016/j.rser.2010.10.006

Google Scholar

[7] A. Sharma, V. Tyagi, C. Chen, D. Buddhi, Review on thermal energy storage with phase change materials and applications, Renew Sustainable Energy Reviews. 13 (2009) 318-345.

DOI: 10.1016/j.rser.2007.10.005

Google Scholar

[8] S. Cunha, V. Alves, J. B. Aguiar, V. M. Ferreira, Use of phase change materials microcapsules in aerial lime and gypsum mortars, Cement Wapno Beton. Special Issue (2012) 17-21.

Google Scholar

[9] S. Cunha, J. B. Aguiar, M. Kheradmend, L. Bragança, V. M. Ferreira, Thermal mortars with incorporation of PCM microcapsules, Restoration of Buildings and Monuments. 19 (2013) 171-177.

DOI: 10.1515/rbm-2013-6592

Google Scholar

[10] S. Cunha, J. B. Aguiar, V. M. Ferreira, A. Tadeu, Influence of adding encapsulated phase change materials in aerial lime based mortars, Advanced Materials Research. 687 (2013) 255-261.

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

Google Scholar

[11] European Committee for Standardization (CEN). EN 1015-11: 1999. Methods of test for mortar for masonry - Part 11: Determination of flexural and compressive strength of hardened mortar (1999).

DOI: 10.3403/01905442

Google Scholar

[12] European Committee for Standardization (CEN). EN 1015-18: 2002. Methods of test for mortar for masonry - Part 18: Determination of water absorption coefficient due to capillary action of hardened mortar (2002).

DOI: 10.3403/02720093u

Google Scholar

[13] Portuguese Institute for Quality (IPQ). NP EN 998-1: 2013. Specification for masonry mortars -Part 1: Plastering mortars for interior and exterior (2013) (in Portuguese).

Google Scholar

[14] National Laboratory of Civil Engineering (LNEC). Specification E 394, Concrete–Determination of water absorption by immersion (1993) (in Portuguese).

Google Scholar

[15] European Committee for Standardization (CEN). CEN/TS 12390-9: 2006. Testing hardened concrete - Part 9: Freeze-thaw resistance (2006).

Google Scholar