Cement-Lime Plaster with PCM Addition – A Perspective Material for Moderation of Interior Climate

Abstract:

The interior temperature and relative humidity are important parameters in order to achieve healthy, comfortable, sustainable, and energy efficient indoor environment. In this paper, cement-lime plaster with PCM addition is studied as a perspective material for moderation of indoor temperature and humidity fluctuations. Commercial dry plaster mixture is modified by PCM addition based on the water dispersion of polymer microencapsulated paraffinic wax. The dosage of PCM is 4, 8, and 12 mass% related to the dry mass of plaster mixture. For the developed plasters, basic physical, thermal and hygric properties are measured. Incorporation of PCM into the cement-lime matrix lead to the substantial increase of the heat storage capacity in dependence on temperature as well as to the improvement of moisture buffer value of the newly developed composites which brings efficient way to reduce daily moisture variations. The obtained data can find use in attaining the higher indoor climate stability with lower energy consumption and operational cost.

• Periodical: Key Engineering Materials (Volume 707)
• Pages: 43-50
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.707.43
• Online since: September 2016
• Authors: Jan Fořt, Anton Trník, Zbyšek Pavlík*
• Keywords: Heat Storage Capacity, Indoor Climate Stability, Interior Climate, PCM Water Dispersion

References

[1] A.L. Pasanen, J.K. Kasanen, S. Rautiala, M. Ikaheimo, J. Rantamaki, P. Kalliokoski, Fungal growth and survival in building materials under fluctuating moisture and temperature conditions, Int. Biodeter. Biodegr. 46 (2000) 117-127.

DOI: 10.1016/s0964-8305(00)00093-7

[2] World Outlook 2010, International Energy Agency (IEA), (2010).

[3] A.H. Holm, H.M. Künzel, K. Sedlbauer, Predicting Indoor Temperature and Humidity Conditions Including Hygrothermal Interactions with the Building Envelope, ASHRAE Tran. 110 (2004) 820-828.

DOI: 10.1016/j.solener.2004.03.002

[4] S. Hameury, Moisture buffering capacity of heavy timber structures directly exposed to an indoor climate: a numerical study, Build. Environ. 40 (2005) 1400-1412.

DOI: 10.1016/j.buildenv.2004.10.017

[5] C. Rode, A. Holm, T. Padfield, A review of humidity buffering in the interior spaces, J. Therm. Envel. Build. Sci. 27 (2004) 221-226.

DOI: 10.1177/1097196304040543

[6] Z. Pavlík, A. Trník, J. Žumár, M. Keppert, M. Pavlíková, R. Černý, Experimental investigation of the properties of lime-based plaster containing PCM for enhancing the heat storage capacity of building envelopes, Int. J. Thermophys. 35 (2014).

DOI: 10.1007/s10765-013-1550-8

[7] Z. Pavlík, J. Žumár, I. Medved´,R. Černý, Water vapor adsorption in porous building materials: experimental measurement and theoretical analysis, Transport Porous Med. 91 (2012) 939-954.

DOI: 10.1007/s11242-011-9884-9

[8] C. Rode, ed., Moisture Buffering of Building Materials, Report BYG DTU R – 126 (2005).

[9] F. McGregor F, A. Heath, E. Fodde, A. Shea, The moisture buffering capacity of unfired clay masonry, Build. Environ. 82 (2014) 599-607.

DOI: 10.1016/j.buildenv.2014.09.027