Ceramic tiles: terms and definitions

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You scored -53 out of 50 possible points.

Your result: -106%

Question 1

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: 2 out of 10

Your Answer	Option	Right?	Result
	Cotto (terracotta)		0
	Cottoforte		0
	Extruded gres		0
	Gres red		0
	Clinker		1
	Gres Porcellanato (ceramic granite)		0
	Majolica		0

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

Question 2

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: -47.5 out of 10

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

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

Question 3

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: -16.666666666667 out of 10

Your Answer	Option	Right?	Result
	Coordination size (C) - Technological size, including the width of the seam.		0
	Nominal size - Size used to designate a product.		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
	The dimensions of tiles and slabs of other shapes are determined by the largest size of the rectangle in which they are inscribed		-10
	Non-modular dimensions - Dimensions that do not take into account the modular (M) structure. 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.		0
	Actual size - The size obtained by measuring the surface of ceramic tiles and slabs in accordance with EN ISO 10545-2.		0

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

Question 4

Standards, articles and books use specialized ceramic tile terms. Below are such terms and their definitions. Which pairs - term and definition - correspond to reality?

Score: 6 out of 10

Your Answer	Option	Right?	Result
	Extruded ceramic tiles and slabs - Ceramic tiles and slabs cut to a specified length from a strip formed by an extruder from a plastic mass.		1
	Glaze - A thin glassy sintered layer covering the surface of a ceramic tile or slab that is waterproof		1
	Angobed Surface - A thin layer of clay slurry applied to the surface of a ceramic tile or slab that has a matte appearance and may be permeable or waterproof.		1
	Semi-dry pressed ceramic tiles and slabs - Ceramic tiles and slabs produced by pressing a powdered mass into molds under high pressure.		0
	Ceramic tiles and slabs with an engobed surface are considered glazed.		0
	Water absorption (E) - Water absorption is determined as a percentage by mass in accordance with EN ISO 10545-3.		0

Material on this issue is presented in standard EN 14411 .

Question 5

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: 2.8571428571429 out of 10

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

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

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Ceramic tiles: terms and definitions

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