Simulation technique for service life assessment of façade refurbishment

Erkki Vesikari, Miguel Ferreira

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

The EU Research Project SUSREF proposes as its outcome sustainable concepts and technologies for the refurbishment of building facades and external walls. One of the tasks in the SUSREF project was to predict the performance and service life of the proposed refurbishment concepts. A simulation software developed at VTT in the 1990s was updated and used to evaluate possible degradation in refurbished concrete facades. The software is able to emulate the temperature and moisture content in a cross-section of a sandwich wall and to apply temperature and moisture sensitive degradation models at critical points of the wall throughout its service life. Five different refurbishment concepts of building facades were analyzed for predicting possible moisture and degradation problems. The analyses were conducted in various European climates and with various materials as thermal insulation and outer core. The results show that the risk of mould growth and continued corrosion of reinforcement should be considered when using dense insulation materials, such as expanded polystyrene and polyurethane. The concepts where the original outer core and thermal insulation are replaced by new ones seem to be relatively risk free. In addition, in cold weather countries the risk of frost attack should always be considered with concretes and mortars. The use of dense coatings on original outer core or rendering may increase the mould risk
Original languageEnglish
Title of host publicationLife-Cycle and Sustainability of Civil Infrastructure Systems
Subtitle of host publicationProceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012
EditorsAlfred Strauss, Dan Frangopol, Konrad Bergmeister
Pages837-844
Publication statusPublished - 2012
MoE publication typeA4 Article in a conference publication
Event3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012 - Vienna, Austria
Duration: 3 Oct 20126 Oct 2012

Conference

Conference3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012
Abbreviated titleIALCCE 2012
CountryAustria
CityVienna
Period3/10/126/10/12

Fingerprint

Service life
Facades
Moisture
Thermal insulation
Degradation
Concretes
Mortar
Polyurethanes
Insulation
Polystyrenes
Reinforcement
Corrosion
Coatings
Temperature

Cite this

Vesikari, E., & Ferreira, M. (2012). Simulation technique for service life assessment of façade refurbishment. In A. Strauss, D. Frangopol, & K. Bergmeister (Eds.), Life-Cycle and Sustainability of Civil Infrastructure Systems: Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012 (pp. 837-844)
Vesikari, Erkki ; Ferreira, Miguel. / Simulation technique for service life assessment of façade refurbishment. Life-Cycle and Sustainability of Civil Infrastructure Systems: Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012. editor / Alfred Strauss ; Dan Frangopol ; Konrad Bergmeister. 2012. pp. 837-844
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title = "Simulation technique for service life assessment of fa{\cc}ade refurbishment",
abstract = "The EU Research Project SUSREF proposes as its outcome sustainable concepts and technologies for the refurbishment of building facades and external walls. One of the tasks in the SUSREF project was to predict the performance and service life of the proposed refurbishment concepts. A simulation software developed at VTT in the 1990s was updated and used to evaluate possible degradation in refurbished concrete facades. The software is able to emulate the temperature and moisture content in a cross-section of a sandwich wall and to apply temperature and moisture sensitive degradation models at critical points of the wall throughout its service life. Five different refurbishment concepts of building facades were analyzed for predicting possible moisture and degradation problems. The analyses were conducted in various European climates and with various materials as thermal insulation and outer core. The results show that the risk of mould growth and continued corrosion of reinforcement should be considered when using dense insulation materials, such as expanded polystyrene and polyurethane. The concepts where the original outer core and thermal insulation are replaced by new ones seem to be relatively risk free. In addition, in cold weather countries the risk of frost attack should always be considered with concretes and mortars. The use of dense coatings on original outer core or rendering may increase the mould risk",
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Vesikari, E & Ferreira, M 2012, Simulation technique for service life assessment of façade refurbishment. in A Strauss, D Frangopol & K Bergmeister (eds), Life-Cycle and Sustainability of Civil Infrastructure Systems: Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012. pp. 837-844, 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012, Vienna, Austria, 3/10/12.

Simulation technique for service life assessment of façade refurbishment. / Vesikari, Erkki; Ferreira, Miguel.

Life-Cycle and Sustainability of Civil Infrastructure Systems: Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012. ed. / Alfred Strauss; Dan Frangopol; Konrad Bergmeister. 2012. p. 837-844.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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AU - Ferreira, Miguel

PY - 2012

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N2 - The EU Research Project SUSREF proposes as its outcome sustainable concepts and technologies for the refurbishment of building facades and external walls. One of the tasks in the SUSREF project was to predict the performance and service life of the proposed refurbishment concepts. A simulation software developed at VTT in the 1990s was updated and used to evaluate possible degradation in refurbished concrete facades. The software is able to emulate the temperature and moisture content in a cross-section of a sandwich wall and to apply temperature and moisture sensitive degradation models at critical points of the wall throughout its service life. Five different refurbishment concepts of building facades were analyzed for predicting possible moisture and degradation problems. The analyses were conducted in various European climates and with various materials as thermal insulation and outer core. The results show that the risk of mould growth and continued corrosion of reinforcement should be considered when using dense insulation materials, such as expanded polystyrene and polyurethane. The concepts where the original outer core and thermal insulation are replaced by new ones seem to be relatively risk free. In addition, in cold weather countries the risk of frost attack should always be considered with concretes and mortars. The use of dense coatings on original outer core or rendering may increase the mould risk

AB - The EU Research Project SUSREF proposes as its outcome sustainable concepts and technologies for the refurbishment of building facades and external walls. One of the tasks in the SUSREF project was to predict the performance and service life of the proposed refurbishment concepts. A simulation software developed at VTT in the 1990s was updated and used to evaluate possible degradation in refurbished concrete facades. The software is able to emulate the temperature and moisture content in a cross-section of a sandwich wall and to apply temperature and moisture sensitive degradation models at critical points of the wall throughout its service life. Five different refurbishment concepts of building facades were analyzed for predicting possible moisture and degradation problems. The analyses were conducted in various European climates and with various materials as thermal insulation and outer core. The results show that the risk of mould growth and continued corrosion of reinforcement should be considered when using dense insulation materials, such as expanded polystyrene and polyurethane. The concepts where the original outer core and thermal insulation are replaced by new ones seem to be relatively risk free. In addition, in cold weather countries the risk of frost attack should always be considered with concretes and mortars. The use of dense coatings on original outer core or rendering may increase the mould risk

M3 - Conference article in proceedings

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Vesikari E, Ferreira M. Simulation technique for service life assessment of façade refurbishment. In Strauss A, Frangopol D, Bergmeister K, editors, Life-Cycle and Sustainability of Civil Infrastructure Systems: Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012. 2012. p. 837-844