Ceramic tiles: terms and definitions

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You scored -41 out of 50 points.

Your result: -82%

Question 1

Ceramic tiles and slabs are used mainly for flooring and wall cladding. As a rule, they are molded at room temperature using the extrusion method (method A) or the semi-dry pressing method (method B). Indicate what types of ceramic tiles are molded using the semi-dry pressing method (method B).

Score: -17.5 out of 10

Your Answer	Option	Right?	Result
	Gres red		1
	Majolica		1
	Porcelain tiles		0
	Clinker		0
	Cotto (terracotta)		-10
	Cottoforte		1

Information on this issue can be found on the forum Classification of tiles and area of use .

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: 5 out of 10

Your Answer	Option	Right?	Result
	Nominal size - Size used to designate a product.		1
	Non-modular dimensions - Dimensions that do not take into account the modular (M) structure. NOTE See ISO 1006, where 1M = 100 mm.		0
	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.		0
	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.		1
	The dimensions of tiles and slabs of other shapes are determined by the largest size of the rectangle in which they are inscribed		0
	Actual size - The size obtained by measuring the surface of ceramic tiles and slabs in accordance with EN ISO 10545-2.		1
	Coordination size (C) - Technological size, including the width of the seam.		0

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

Question 3

Gres porcellanato. Tiles with a light or colored base, plain (monocolor) or fine-grained with a compacted, vitrified shard, produced by pressing. The technical and commercial name for this type of tile in some countries is as follows:

Score: -30 out of 10

Your Answer	Option	Right?	Result
	France - Gres ceramic		1
	Russia – ceramic granite or porcelain stoneware		1
	Italy – Gres Porcellanato		0
	Germany – Porzellan Steinzeugfliesen		0
	Spain - Gres Porcelanico		0
	Poland - Super Gres		-10
	Portugal - Granito Porcelanato Ceramica		0
	Ukraine - Piastrella		-10
	England – Fully Vitrified Porcelain Tiles or Vitrified Stoneware		0

Material 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 Answer	Option	Right?	Result
	When exposed to water, polished tiles become very slippery.		1
	Polished Surface - The surface of glazed or unglazed ceramic tiles and slabs that is polished at the final stage of manufacture to impart shine.		0
	A matte surface is more slippery than, for example, polished or glazed.		0
	Polished porcelain tiles are less slippery than polished ones, but due to the smooth surface of such tiles, they are easy to clean.		1
	The tile that comes out of the kiln and is not subjected to additional mechanical treatment after firing has a matte surface.		1
	A polished surface is obtained by special matte polishing.		1
	Tiles with a matte surface are not only the most affordable, since they do not require additional processing, but also the most durable.		1
	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.		1
	To obtain polished tiles, their surface is polished with special diamond nozzles using a large number of chemicals.		-5

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 Answer	Option	Right?	Result
	The chemical composition of the glaze and the ceramic shard is different. Their thermal expansion also varies in size.		1
	Frit is a special type of glass that, during the firing of the tile, melts and adheres tightly to the shard.		1
	Transparent glazes are colorless and colored.		1
	Transparent glazes are also called enamels.		0
	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.		0
	Glaze, consisting of frits only, is used only to achieve a shiny surface on some types of wall tiles.		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 is a shiny or enamel glassy layer in the form of a thin film (1 - 3 mm).		-1

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

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Ceramic tiles: terms and definitions

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