Ceramic tiles: terms and definitions

You scored -8 out of 50 possible points.
Your result: -16%
Question 1

The variety of types of ceramic tiles produced is quite large. It ranges from traditional terracotta to tiles with complex chromatic textures that imitate non-ceramic materials such as glass, metal, and natural stone. Below are the names of the types of ceramic tiles and their descriptions. Which of them do you think are true?

Score: 0 out of 10
Your AnswerOptionRight?Result

Gres . Gres is a name for ceramic materials that are characterized by a compact crystalline structure of a shard with partial vitrification (the process of transformation into a glassy mass), therefore tiles of this type are typologically classified as stone-ceramic tiles. Stone-ceramic tiles have a water absorption of <3%.

0
Selected

Cotto (terracotta) . Most often, unglazed tiles with a red and porous base, produced by extrusion. A mixture of different types of natural clay without special sorting and mixing. Cotto is an Italian name, generally accepted and well known to us - terracotta. The ratio to water absorption is determined by the raw material composition and process conditions and varies from 3 to 15%. Cotto tiles have a significant thickness from 15 to 25 mm.

Correct
1
Selected

Gres red . Unglazed, red-burning tile with compacted shards, produced by pressing. The raw material is a mixture of red clays with quartz, spar and fireclay. Water absorption is less than 3%. It has high strength and abrasion resistance (abrasion resistance). Strength indicators are higher than those of natural stone.

Correct
1

Faience . Glazed ceramic tiles with a porous and white base, press molded, double fired. Water absorption from 6 to 12%. The raw material is white clay, which after firing gives the shard a light tone. White sponge cake allows you to use transparent glazes or glazes in light colors. These tiles are of high artistic quality.

0

Cottoforte . Double-fired glazed tiles with a porous, colored base, press-molded. Like majolica, cottoforte is a glazed tile with a colored porous base, but in terms of its raw material composition it is close to red gres (that is, a tile with a compacted shard). Water absorption ranges from 6 to 15%. Due to its high porosity, cottoforte is not frost-resistant. The average tile thickness of 10-12 mm is quite sufficient to accommodate the loads inherent in residential premises.

0
Selected

Clinker . Unglazed and single-fired glazed tiles with compacted shards, produced by extrusion. The raw material is a mixture of various types of refractory (fireproof) clays, quartz, feldspar, fireclay. Clinker belongs to the class of tiles with enhanced physical and mechanical characteristics associated with high-quality raw materials and production technology. This type of tile can also be called extruded gres.

Correct
1

Majolica . Double fired glazed tiles with a porous and colored base, press molded. Firing is carried out in two stages, first the shard is fired, then the glaze. Water absorption ranges from 12 to 22%. Accordingly, the tiles are not frost-resistant and are not highly durable.

0
Selected

Ceramic granite . Tiles with a light or colored base, plain (monocolor) or fine-grained with a compacted, vitrified shard, produced by pressing. Water absorption <0.5%. The distinctive features of porcelain stoneware are strength, resistance to abrasion, chemical and biological influences, frost resistance, and high bending strength. At the same time, the tiles are not subject to aging and retain their original properties and are not affected by the environment.

Correct
1

Material on this issue is presented in the article Unglazed tiles .

Question 2

Ceramic tiles and rectangular slabs come in a range of sizes. The names of these sizes and definitions are given below. Which pairs - term and definition - correspond to reality?

Score: -15 out of 10
Your AnswerOptionRight?Result

Technological size (W) - A size established for the manufacturing process of ceramic tiles and slabs, which must correspond to the actual size within acceptable deviations.

0

Coordination size (C) - Technological size, including the width of the seam.

0

Actual size - The size obtained by measuring the surface of ceramic tiles and slabs in accordance with EN ISO 10545-2.

0
Selected

Modular size - Dimensions of ceramic tiles and slabs determined on the basis of module M, as well as their multiple and divisible, with the exception of tiles and slabs with a front surface area of ​​less than 9000 mm2.

NOTE See ISO 1006, where 1M = 100 mm.

Correct
1

Non-modular dimensions - Dimensions that do not take into account the modular (M) structure.

NOTE See ISO 1006, where 1M = 100 mm.

0
Selected

The dimensions of tiles and slabs of other shapes are determined by the largest size of the rectangle in which they are inscribed

Incorrect
-10

Nominal size - Size used to designate a product.

0

Material on this issue is set out in standard EN 14411 .

Question 3

Unglazed tiles consist of one layer - a ceramic shard. The color is obtained from the raw material or is colored by metal oxides throughout the tile body (tile). The surface can remain untreated (natural) or be processed, taking on various surfaces: polished, honed, rusticated, structured, etc. Unglazed tiles include:

Score: 8 out of 10
Your AnswerOptionRight?Result

Cottoforte

0
Selected

Gres Porcellanato (ceramic granite)

Correct
1

Majolica

0
Selected

Cotto (terracotta)

Correct
1
Selected

Gres red

Correct
1

Extruded gres

0
Selected

Clinker

Correct
1

Information on this issue is presented in the article Unglazed tiles .

Question 4

The existence of ceramic slabs with different types of surfaces is the result of successful experiments by manufacturers. The most popular of them can be considered surface polishing (with its variations). Select the correct definitions or statements.

Score: -1.4285714285714 out of 10
Your AnswerOptionRight?Result

To obtain polished tiles, their surface is polished with special diamond nozzles using a large number of chemicals.

0

Tiles with a matte surface are not only the most affordable, since they do not require additional processing, but also the most durable.

0

Polished porcelain tiles are less slippery than polished ones, but due to the smooth surface of such tiles, they are easy to clean.

0

When polishing, the topmost “sintered” layer is cut off. As a result, polished porcelain stoneware is slightly inferior to matte in terms of performance characteristics, in particular, wear resistance.

0
Selected

A matte surface is more slippery than, for example, polished or glazed.

Incorrect
-5
Selected

A polished surface is obtained by special matte polishing.

Correct
1
Selected

Polished Surface - The surface of glazed or unglazed ceramic tiles and slabs that is polished at the final stage of manufacture to impart shine.

Correct
1
Selected

The tile that comes out of the kiln and is not subjected to additional mechanical treatment after firing has a matte surface.

Correct
1
Selected

When exposed to water, polished tiles become very slippery.

Correct
1

Material on this issue is presented in the article Porcelain tiles - many faces and diversity .

Question 5

Glazed ceramic tiles can be used to cover walls and floors. Which of the following statements regarding glaze are true?

Score: 0 out of 10
Your AnswerOptionRight?Result

Transparent glazes are also called enamels.

0

Transparent glazes are colorless and colored.

0

The chemical composition of the glaze and the ceramic shard is different. Their thermal expansion also varies in size.

0
Selected

Glaze is a shiny or enamel glassy layer in the form of a thin film (1 - 3 mm).

Incorrect
-1
Selected

Tsek is a type of glaze defect. This occurs due to the difference in the expansion coefficients of the shard and the glaze itself. The center has the appearance of web-like cracks.

Correct
1

The fragility of the adhesion of the glaze to the shard is expressed in the formation of a network of cracks in the glaze layer (cek) or the detachment of the glaze from the shard after firing and cooling.

0

Glaze, consisting of frits only, is used only to achieve a shiny surface on some types of wall tiles.

0

Frit is a special type of glass that, during the firing of the tile, melts and adheres tightly to the shard.

0

Material on this issue is in the article Glaze general concepts and classification .

For any suggestions regarding the site: [email protected]
Для любых предложений по сайту: [email protected]