Evaluation of service frost resistance of ceramic facing tiles

Mačiulaitis, Romualdas; Kičaitė, Asta; Nagrockienė, Džigita; Kudabiene, Gema

doi:10.1080/13923730.2004.9636321

Cited by 4 publications

(3 citation statements)

References 2 publications

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“…Thus, the authors of [8] proposed to use strength criteria to predict the fracture tendencies of a ceramic product: residual mass, residual surface, pore and capillary parameters and their irregularity. The larger the residual surface and the residual mass, the more frost-resistant the ceramic product is.…”

Section: Research Of Existing Solutions To the Problemmentioning

confidence: 99%

Influence of forming pressure on frost resistance of ceramics

Subota

Spasonova

Sholom

2021

TAPR

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The object of research is low-melting clays of the Kyiv region (Ukraine). The work is devoted to the study of obtaining ceramic materials resistant to low temperatures. Frost resistance is one of the most important characteristics for regions in which ceramic materials are used with frequent temperature transitions through 0 °C. The production of frost-resistant ceramic wall materials is determined by the type of raw materials and technological production parameters. The main technological methods for increasing frost resistance are: the use of less dispersed clays; batch homogenization; formation of raw material without textural defects and prevention of cracks during drying and firing. The work shows that the existing methods for increasing frost resistance can be implemented by reducing water absorption due to the creation of a microporous structure with predominantly closed pores by increased pressure of a semi-dry method of formation. An increase in the pressing pressure leads to an increase in the number of contacts of the molecules of the ceramic mass at the stage of formation. Due to this, the strength of the molded samples at a pressing pressure of more than 30 MPa is higher compared to samples molded by the plastic method. It was also found that an increase in the pressing pressure makes it possible to speed up the drying process of ceramic products, reducing energy consumption for their production. Due to an increase in the pressing pressure to 50 MPa, the strength of samples obtained by semi-dry pressing is 55.4 MPa, while for samples during plastic formation it is 22.9 MPa. Water absorption, on the contrary, for dry pressing is 9.3 %, while for plastic pressing it is 12.2 % at a firing temperature of 1000 °C. It is shown that increasing the pressing pressure is an effective way to improve the quality of ceramic materials based on local low-plasticity clay raw materials. Saving natural and energy resources, developing new sources of raw materials and comprehensive improvement of products with environmental friendliness of production remain important today.

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Section: Research Of Existing Solutions To the Problemmentioning

confidence: 99%

Influence of forming pressure on frost resistance of ceramics

Subota

Spasonova

Sholom

2021

TAPR

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“…After more than 50 years from its first use, most of the ceramic finishing shows damage due to weathering/pollution in the mortar joints and the mortar underneath the tiles [1][2][3] that cause the tiles detachment.…”

Section: Introductionmentioning

confidence: 99%

Heat Diffusion in Klinker Facade: The Study Case of a Gio Ponti Building

Ludwig

Rosina

Caglio

et al. 2012

Advances in Optical Technologies

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The researchers focus on the IRT procedure of heat diffusion in ceramic finishing materials of contemporary architecture. The aim of the research is the development of a method for the thermal characterization of clinkers, a very common ceramic finishing material of buildings. The first experimental phase was performed in laboratory on clinkers of different shapes, thickness, colors, and glazing surface. The researchers determined two characteristic parameters related to thickness and thermal conductivity, by the interpolation of the heating curve in function of time with an analytical curve (resulted from a particular solution of Fourier’s equation). This curve allows to obtain a parameter characteristic of the material of the specimens under investigation. At present time, the researchers have been studying the correlation between this parameter and the damage level in the specimens; they will be testing the model on real-scale study cases in the second experimental phase.

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“…The durability of the ceramic materials, their low cost, stainless and apparently low sensitivity to the effects of pollution, low requirement for maintenance are some of the reasons of their diffused application in the middle-southern region of Europe, as an effective alternative to brick faced masonry, timber cladding and stucco. After more than 50 years since its early use, most of the ceramic finishing shows damage due to weathering/pollution in the mortar joints and the mortar underneath the tiles [30][31][32] that cause the tiles' detachment.…”

Section: Application To Clinker Assessment: the "Trifoglio" Building mentioning

confidence: 99%

Mapping Infrared Data on Terrestrial Laser Scanning 3D Models of Buildings

et al. 2011

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Abstract:A new 3D acquisition and processing procedure to map RGB, thermal IR and near infrared images (NIR) on a detailed 3D model of a building is presented. The combination and fusion of different data sources allows the generation of 3D thermal data useful for different purposes such as localization, visualization, and analysis of anomalies in contemporary architecture. The classic approach, which is currently used to map IR images on 3D models, is based on the direct registration of each single image by using space resection or homography. This approach is largely time consuming and in many cases suffers from poor object texture. To overcome these drawbacks, a "bi-camera" system coupling a thermal IR camera to a RGB camera has been setup. The second sensor is used to orient the "bi-camera" through a photogrammetric network also including free-handled camera stations to strengthen the block geometry. In many cases the bundle adjustment can be executed through a procedure for automatic extraction of tie points. Terrestrial laser scanning is adopted to retrieve the 3D model building. The integration of a low-cost NIR camera accumulates further radiometric information on the final 3D model. The use of such a sensor has not been exploited until now to assess the conservation state of buildings. Here some interesting findings from this kind of analysis are reported. The paper shows the methodology and its experimental application to a couple of buildings in the main Campus of Politecnico di Milano University, where IR thermography has previously been carried out for conservation and maintenance purposes. OPEN ACCESS

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Evaluation of service frost resistance of ceramic facing tiles

Cited by 4 publications

References 2 publications

Influence of forming pressure on frost resistance of ceramics

Influence of forming pressure on frost resistance of ceramics

Heat Diffusion in Klinker Facade: The Study Case of a Gio Ponti Building

Mapping Infrared Data on Terrestrial Laser Scanning 3D Models of Buildings

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