Impact of acidic precipitation to ageing of painted facades’ rendering

Norvaišienė, Rosita; Burlingis, Arūnas; Stankevičius, Vytautas

doi:10.1016/j.buildenv.2005.12.026

Cited by 15 publications

(12 citation statements)

References 5 publications

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“…The recommended average irradiation intensity I UV is 40 W/m 2 [6]. Such intensity of UV radiation is close to the intensity on summer midday.…”

Section: Artificial Uv Radiation Effect Modelmentioning

confidence: 83%

Study on the microstructure and water absorption changes of exterior thin-layer polymer renders during natural and artificial ageing

Griciutė¹,

Bliūdžius²

2015

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This paper presents the experimental investigation results of finishing render of external thermal insulation composite systems (ETICS). The study involved natural (long-term) and artificially accelerated (short-term) ageing including effect of UV radiation. The cycle of accelerated UV radiation ageing test, imitating the impact of one natural year in Lithuanian climate conditions, have been used. In order to determine the visual, microstructure and water absorption changes and find out the correlation between the natural and artificial weathering, the results of tested aged and untreated samples have been compared. The main attention was focused on the changes of structure and physical properties after short-term and long-term ageing tests. The structural changes of render surface of ETICS after UV tests were determined using scanning electron microscope (SEM). The water absorption of ETIC system was determined by partially submersion. Analysis of render surface microstructure showed that UV rays destroy the continuous polymer film on the acrylic and silicone render surface, but water absorption of ETICS does not increase in both cases. Water absorption rates of acrylic, silicon and silicate renders after one natural year of exposure become similar. The polymer film formed on exterior acrylic and silicone render surface was destroyed during one year natural and equivalent laboratory ageing. In conjunction, the carbonization process was taking place, the newly formed calcite crystals covering pores and capillaries, consequently the water absorption rate of all ETICS samples decreased.

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“…The recommended average irradiation intensity I UV is 40 W/m 2 [6]. Such intensity of UV radiation is close to the intensity on summer midday.…”

Section: Artificial Uv Radiation Effect Modelmentioning

confidence: 83%

Study on the microstructure and water absorption changes of exterior thin-layer polymer renders during natural and artificial ageing

Griciutė¹,

Bliūdžius²

2015

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“…Literature Source Substrate (S) [6,9,10,56,64,68,73] Adhesive (D) [6,7,[9][10][11][12]14,15,46,56,69,73,76] Insulation (I) [6,9,10,13,49,50,58,72,73] Mechanical anchors (A) [6,9,10,40,41] Reinforcement (R) [2,6,9,10,55] Finishing layer (F) [6,[9][10][11]14,69] Additional details (X) [6,9,10,53,62] To reveal questionnaire errors, one declared and one undeclared pre-test were conducted. Similarly, individual pre-testing has been used by other researchers…”

Section: Layermentioning

confidence: 99%

Construction Process Technical Impact Factors on Degradation of the External Thermal Insulation Composite System

Sulakatko

Vogdt

2018

Sustainability

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The European climate strategy has encouraged the usage of the External Thermal Insulation Composite System (ETICS) to increase the energy efficiency of external building envelopes. This externally and relatively easily applicable façade solution must meet various technical requirements. This paper develops a technical severity evaluation model of on-site construction activities of ETICS to prioritize the risks of the construction process. The model can be used independently by any stakeholder of the construction process. The relevance of the activities is assessed with the Failure Mode Effects Analysis method. The model weights the impact of the essential technical requirements and simulates an integrated weighted technical severity value, which is derived from the analysis of experts’ judgments validated with the non-parametric Friedman’s test. The data collection for probability of occurrence and difficulty of detectability follows the Delphi technique to quantify the opinions of a group. The simulation, conducted on 103 degradation factors, shows that the on-site construction activities of ETICS strongly influence the decrease in the technical resilience of long-term durability, mechanical resistance, and stability, as well as the ability to bypass tensions. The highest risk is detected by the shortcomings in the layers of substrate, reinforcement, adhesive, and additional details.

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“…It is important to define the laboratory parameters of the cyclic artificial ageing [35] of the painting materials in order to find out the relation between artificial climatic ageing and natural weathering thus affording the opportunity to predict the real durability of the painting under natural ageing conditions. On the other hand, temperature fluctuation causes the deformations in the painted rendering's external layer.…”

Section: Artificial Ageing (Heating-drying Cycles)mentioning

confidence: 99%

Libs Tool to Diagnose the Egyptian Deteriorated Wall Paintings During Laser Cleaning Process, an Experimental Study

Sayed

Omran

Den

et al. 2011

Egyptian Journal of Archaeological and Restoration Studies

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Impact of acidic precipitation to ageing of painted facades’ rendering

Cited by 15 publications

References 5 publications

Study on the microstructure and water absorption changes of exterior thin-layer polymer renders during natural and artificial ageing

Study on the microstructure and water absorption changes of exterior thin-layer polymer renders during natural and artificial ageing

Construction Process Technical Impact Factors on Degradation of the External Thermal Insulation Composite System

Libs Tool to Diagnose the Egyptian Deteriorated Wall Paintings During Laser Cleaning Process, an Experimental Study

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