Influence of mineralogy and firing temperature on the porosity of bricks

Cultrone, Giuseppe; Sebastián, Eduardo; Elert, Kerstin; Torre, María José de la; Cazalla, Olga; Rodríguez-Navarro, Carlos

doi:10.1016/s0955-2219(03)00249-8

Cited by 362 publications

(230 citation statements)

References 27 publications

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“…These factors comprise, inter alia: uniformity of component distribution in the ceramic material, pore structure (density), the presence of inclusions, scratches (technological cracks) and micro-defects in the vitreous phase structure (18,24). The ceramic texture is determined by the type of raw materials used, and the brick production method (forming, seasoning before firing, firing technology) (7)(8)(9)(10)25).…”

Section: Discussion Of Resultsmentioning

confidence: 99%

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The influence of water saturation on mechanical properties of ceramic bricks – tests on 19th- century and contemporary bricks

et al. 2016

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ABSTRACT:The paper presents test results concerning ceramic bricks produced in 1880's. Bricks were obtained from a building erected as part of Archduke Rudolf barracks in Krakow. The tests helped to specify changes in brick compressive strength and hardness, caused by water saturation in the ceramic material. For comparison purposes, tests were also carried out on contemporary bricks. Tests showed that mechanical properties of the ceramic bricks in the water saturation state were worse than in the dry state. The impact of strong brick moisture on changes of mechanical parameters is essential in terms of safety assessment for brick structures. RESUMEN: El impacto sobre las propiedades mecánicas de la saturación de agua de los ladrillos cerámicos contemporáneos y del siglo XIX.En el artículo se presentan los resultados del estudio de los ladrillos cerámicos producidos en los años 80 del siglo XIX. Los ladrillos se obtuvieron del edificio que forma parte de un conjunto de cuarteles del archiduque Rudolfo en Cracovia en Polonia. En los estudios se han determinado los cambios de la resistencia a la compresión y la dureza de los ladrillos, por efecto de la saturación de agua del material cerámico. A efectos comparativos, se han realizado también estudios de ladrillos producidos en la actualidad. Se ha comprobado que la saturación de agua de los ladrillos cerámicos lleva consigo una considerable disminución de las propiedades mecánicas. Por lo tanto, el impacto de la alta humedad de los ladrillos sobre el cambio de las propiedades mecánicas constituye un factor significativo en la evaluación de la seguridad en las construcciones de ladrillo.

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Section: Discussion Of Resultsmentioning

confidence: 99%

“…Depending on the raw material used, the method of forming and firing, ceramic bricks can have highly varied properties (5)(6)(7)(8)(9)(10). Ceramic bricks belong to a group of capillary-porous materials, which are characterized by open porosity from a few to several dozen percent (11,12).…”

Section: Introductionmentioning

confidence: 99%

The influence of water saturation on mechanical properties of ceramic bricks – tests on 19th- century and contemporary bricks

et al. 2016

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“…In the results of the mineralogical characterization of ceramic parts, it was possible to observe the presence of minerals belonging to the raw material and formed by the firing because of mineral transformations that occur with increasing temperature [15,[20][21][22]. The mineralogical variety of samples indicated that the raw material of the samples was composed primarily of quartz, calcite and/or dolomite, hematite or goethite, and clay minerals, such as kaolinite, common results for Portuguese samples from the nineteenth century [16].…”

Section: Mineralogical Composition Of Ceramic Layermentioning

confidence: 86%

The historical glazed tiles from Nossa Senhora da Soledade Cemetery, Northern Brazil: microstructural, physical and mineralogical characterization

Gasparetto

Sanjad

2018

Cerâmica

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During the nineteenth century, historical glazed tiles were used in the mortuary architecture of Nossa Senhora da Soledade Cemetery, in Belém. These ceramic pieces are an extraordinary part of Brazilian cultural heritage but are at a high deterioration stage due to conditions to which they are subjected. The aim of this research was the microstructural, physical and mineralogical characterization of glazed tiles from Nossa Senhora da Soledade Cemetery. The samples consisted of Portuguese fragments from the nineteenth century, decorated by stamping. The characterization was performed by optical microscopy, scanning electron microscopy with energy dispersive spectroscopy, water absorption test, and X-ray diffractometry. The results indicated that glazed and ceramic layers have manufacturing defects and a heterogeneous character due to the handmade production process. The porosities vary from 13.3% to 22.9%. The ceramics are composed of quartz, gehlenite, calcite, rutile, cristobalite, diopside, anorthite, hematite and wollastonite. According to the results, despite many similarities (country of origin, century of production, decorative technique), the samples have variations in their microstructure and mineralogy. Information regarding the compositions of the tiles and their variation is important to support future restorative interventions. Keywords: historical glazed tiles, mortuary architecture, microstructure, mineralogy. Resumo

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“…It must possess several important physical properties such as a specific gravity of 3.06 and Blaine fineness of 2888cm 2 /g. The use of Portland cement in this research conformed to ASTM C150, Standard Specifications for Portland cement [4].…”

Section: Portland Cementmentioning

confidence: 99%

Effect of Vacuum Intrusion Compaction on the Mechanical Properties of Mortar

Chung

Sulieman

2014

MATEC Web of Conferences

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Abstract. The Vacuum Intrusion Compaction Method (VICM) can be defined as a mortar or cement based material compaction method which applies the principle of air pressure in extracting air bubbles trapped in mortar in order to achieve the objective of compaction. This alternative compaction method is able to prevent segregation from happening in mortar and other cement based materials. It also provides better control over the orientation of the elements inside the mortar. Laboratory tests on the physical and mechanical properties of mortars were conducted to study bulk density, porosity, compressive strength, and flexural strength in the early stages of strength development of different mortars. Through such testing, the effectiveness of the vacuum intrusion method on the effect of compaction could be observed. The outcome of this research shows that the VICM is capable of compacting mortar and extracting macro pores, thereby providing a relatively similar compressive strength and flexural strength to that of the standard compaction method. However, it is not efficient in extracting micro pores, therefore, leading to high porosity of the mortar specimens. As a conclusion, the vibration compaction method is still considered a good compaction method when compared to VICM.

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Influence of mineralogy and firing temperature on the porosity of bricks

Cited by 362 publications

References 27 publications

The influence of water saturation on mechanical properties of ceramic bricks – tests on 19th- century and contemporary bricks

The influence of water saturation on mechanical properties of ceramic bricks – tests on 19th- century and contemporary bricks

The historical glazed tiles from Nossa Senhora da Soledade Cemetery, Northern Brazil: microstructural, physical and mineralogical characterization

Effect of Vacuum Intrusion Compaction on the Mechanical Properties of Mortar

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