The Durability Test Method for External Thermal Insulation Composite System used in Cold and Wet Climate Countries

Griciutė, Gintarė; Bliūdžius, Raimondas; Norvaišienė, Rosita

doi:10.5755/j01.sace.1.2.2778

Cited by 15 publications

(12 citation statements)

References 12 publications

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“…The lateral surfaces have been waterproof sealed by means of a bituminous layer so that water uptake can only take place by the exposed sample surface. The three samples on the left of Figure 2 have a relatively rough finishing (final render with mineral paint) and are exposed without any protection at an angle of 135 • , which is an extreme exposure compared to the common natural aging tests reported in [25][26][27]. Then there are several other samples with a smooth finishing, with some structures on them as it will be the case for structured façades.…”

Section: Weathering Of the Aerogel-based Rendering Without Reinforcement Meshmentioning

confidence: 99%

Stability Relevant Properties of an SiO2 Aerogel-Based Rendering and Its Application on Buildings

2021

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Aerogel-based renderings and plasters have been spreading throughout Europe for nearly a decade. Several national and EU-funded projects have addressed this interesting building product, both at research level within academia and at application level within R&D of renowned industrial enterprises. At present, a number of investigations into the hygro-thermal, chemical and application properties of a commercially successful aerogel-based rendering and its main ingredient, SiO2 aerogel granules, have been undertaken. Immersion in water showed that even under harsh circumstances water does not enter the aerogel granules, but rather accumulates in the porous phase surrounding the granules. A further immersion in calcium hydroxide at different temperatures did not affect the aerogel granule either, which indicates the robustness of the granules with respect to their exposure to moisture and chemical deterioration emerging from the construction materials the rendering is applied on. An executed application to a historic building with a structured finish, and without any reinforcement mesh, showed the advantage of a versatile applicability of this rendering when the external appearance and visible details of a façade must be kept unchanged. The investigation is rounded off by an infrared picture taken on a cold day showing the thermal influence of the aerogel-based rendering, and its effectiveness for reducing heat loss in buildings.

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Section: Weathering Of the Aerogel-based Rendering Without Reinforcement Meshmentioning

confidence: 99%

Stability Relevant Properties of an SiO2 Aerogel-Based Rendering and Its Application on Buildings

2021

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“…Veiga e Malanho (2010), Griciute et al (2013) e Kvande et al (2018) ainda destacam que o propósito do ensaio é avaliar a durabilidade do revestimento do isolamento térmico, usualmente argamassado ou plástico, com espessuras de 1 mm até 3 mm. Ou seja, avalia através de ensaio mais agressivo a durabilidade de revestimentos de pequena espessura que protegem isolamentos térmicos que se degradariam na presença de umidade.…”

Section: Referencial Teóricounclassified

“…Verifica-se que o enfoque da ASTM 1185-08 (ASTM, 2016), ETAG 004 (EOTA, 2013), AS/NZS-2908 (NZS, 2000) e ISO 8336 (ISO, 2017) é a avaliação de sistemas construtivos leves, seja com telhas de materiais cimentícios ou de sistemas de isolamento térmico e não para paredes em alvenaria com revestimento argamassado ou em concreto, sistemas construtivos usualmente utilizados no Brasil. Importante destacar a diferença de espessura entre 1 mm e 3 mm do revestimento argamassado ensaiado nos sistemas de isolamento térmico pela ETAG 004 (relatada na bibliografia (KVANDE et al, 2018;GRICIUTE et al, 2013) em relação à espessura de revestimento externo utilizado no Brasil, entre 20 mm e 30 mm, conforme NBR 13749 (NBR, 2013c).…”

Section: Figura 3 Comparativo Da Deformação Real Com a Máxima Permitidaunclassified

Comportamento de sistemas de vedação vertical externa frente ao ensaio de ação de calor e choque térmico

Modesti

Pereira

Silva

et al. 2020

arqimed

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Um dos requisitos abordados pela NBR 15575:2013, mais conhecida por Norma de Desempenho (ND), está relacionado com a durabilidade das edificações e estabelece como método de avaliação o ensaio de Ação de Calor e Choque Térmico (ACCT), que verifica o comportamento de Sistemas de Vedação Vertical Externa (SVVE) frente a mudanças bruscas de temperatura. O objetivo do trabalho foi verificar o item durabilidade proposto na norma brasileira e contrastar os resultados de diferentes sistemas construtivos frente ao ensaio de ACCT, bem como comparar as prescrições de ensaio de ACCT em diferentes Normas internacionais. O método envolveu a coleta de dados de ensaios já realizados de acordo com a ABNT (2013b). Assim, constatou-se a existência de diversos métodos sendo empregadas para realização do mesmo ensaio, inclusive com variação da dimensão das amostras. Em relação a outras normativas, verifica-se que a norma brasileira é mais branda, devido ao ensaio ter o menor número de ciclos e com menor duração. Constatou-se, também, a facilidade na aprovação ao requisito de desempenho previsto na norma e, que há lacunas de especificação que dificultam a padronização dos procedimentos de ensaio, tais como: tempo de aspersão e temperatura da água.

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“…In the same year, Bochen et al, (2005) performed other climatic chamber tests, also determining the equivalence to natural aging. Years later, Griciuté et al, (2013) made more experimentations involving the accelerated ageing of ETICS.…”

Section: Introduction and State Of The Artmentioning

confidence: 99%

Evaluation of the Effects of Environmental Exposure on the Performance Decay of ETICS

Nicolella¹,

Landolfi²,

Pino³

2020

XV International Conference on Durability of Building Materials and Components. eBook of Proceedings

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The performance decay of a building component is influenced by a huge variety of parameters, interacting between them and determining different results in terms of service life and performance over time. For this reason, evaluating and modeling the performance of a component requires the comprehension of the way and the measure the single factors affect it, and turning this into an analytical model is a very complex operation. Moreover, components of existing buildings are subjected to an additional incognita: the characteristics and the durability of the materials, which is hardly a certain information, and can vary between similar buildings, affecting the accuracy of the evaluation. This study, conducted according to the guidelines of ISO 15686:7 code, investigates on a common solution for interventions on existing buildings, the ETICS, surveying their current performance degree through thermographic camera tests. The aim is to appreciate the difference in the performance decay between different façades of the same buildinga homogeneity that allows to estimate this parameter alone-in order to reach an analytical expression of the variation of performance decay according to the difference in the exposure. The sample is constituted by buildings of large dimensions and well-known original projects and details of successive interventions, located in the city of Naples. The data obtained with in-field measurements were subjected to statistical analysis, to allow the quantitative determination of the impact of this parameter.

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The Durability Test Method for External Thermal Insulation Composite System used in Cold and Wet Climate Countries

Cited by 15 publications

References 12 publications

Stability Relevant Properties of an SiO2 Aerogel-Based Rendering and Its Application on Buildings

Stability Relevant Properties of an SiO2 Aerogel-Based Rendering and Its Application on Buildings

Comportamento de sistemas de vedação vertical externa frente ao ensaio de ação de calor e choque térmico

Evaluation of the Effects of Environmental Exposure on the Performance Decay of ETICS

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