Cit:Kyriakou.etal:2017
| Author | Kyriakou, Loucas; Theodoridou, Magdalini; Ioannou, Ioannis |
| Year | 2017 |
| Title | Assessment of the durability of lime renders with Phase Change Material (PCM) additives against salt crystallization |
| Bibtex | @inproceedings {Kyriakou.etal:2017,
title = {Assessment of the durability of lime renders with Phase Change Material (PCM) additives against salt crystallization}, booktitle = {Proceedings of SWBSS 2017. Fourth International Conference on Salt Weathering of Buildings and Stone Sculptures, University of Applied Sciences Potsdam, Germany, 20-22 September 2017}, year = {2017}, editor = {Laue, Steffen}, pages = {81-89}, month = {september}, organization = {Fachhochschule Potsdam}, publisher = {Verlag der Fachhochschule Potsdam}, note = {fulltext, conference paper}, key = {SWBSS2017}, doi = {10.5165/hawk-hhg/324}, author = {Kyriakou, Loucas; Theodoridou, Magdalini; Ioannou, Ioannis} } |
| DOI | 10.5165/hawk-hhg/324 |
| Link | File:SWBSS 2017 Proceedings 81-89 Kyriakou Theodoridou Ioannou.pdf |
| Notes | in: Proceedings of SWBSS 2017 - Fourth International Conference on Salt Weathering of Buildings and Stone Sculptures. University of Applied Sciences, Potsdam, Germany, 20-22 September 2017 |
Bibliography
| [Kyriakou.etal:2017] | Kyriakou, Loucas; Theodoridou, Magdalini; Ioannou, Ioannis (2017): Assessment of the durability of lime renders with Phase Change Material (PCM) additives against salt crystallization. In: Laue, Steffen (eds.): Proceedings of SWBSS 2017. Fourth International Conference on Salt Weathering of Buildings and Stone Sculptures, University of Applied Sciences Potsdam, Germany, 20-22 September 2017,Verlag der Fachhochschule Potsdam 81-89, 10.5165/hawk-hhg/324. |   |
Abstract[edit]
Energy consumption in buildings is mostly associated with the use of heating and cooling systems. Renders with the addition of Phase Change Materials (PCMs) have the ability to absorb and release thermal energy, when the temperature changes accordingly, thus enhancing the thermal comfort and energy efficiency of buildings. Nevertheless, the performance of such renders with traditional binders lacks international experimental data, especially regarding their durability against salt weathering. This paper focuses on the effect of different percentages of commercial microencapsulated powder PCMs on the properties of hydrated and hydraulic lime renders, investigating at the same time the durability of the end-products against salt crystallization. The aim is to produce energy efficient and durable lime-based renders for the upgrading of contemporary buildings, as well as for conservation purposes. The modified composites have significantly lower thermal conductivity and increased specific heat capacity at 90 days after laboratory production, thus confirming the great potential of PCMs in enhancing the thermal performance of the aforementioned renders. Comparative tests show that the addition of PCMs has an adverse effect on the mechanical properties of the renders and a noteworthy reduction of their bulk density. Nevertheless, the salt crystallization resistance of the modified renders improves with the percentage of PCM addition, when assessed both quantitatively and qualitatively following 15 full immersion wetting and drying cycles in Na2SO4 solution.