Ceramic tiles: terms and definitions

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You scored -20 out of 50 possible points.

Your result: -40%

Question 1

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

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

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: -11.666666666667 out of 10

Your Answer	Option	Right?	Result
	Nominal size - Size used to designate a product.		1
	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
	Coordination size (C) - Technological size, including the width of the seam.		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
	Non-modular dimensions - Dimensions that do not take into account the modular (M) structure. 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
	Actual size - The size obtained by measuring the surface of ceramic tiles and slabs in accordance with EN ISO 10545-2.		1

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

Question 3

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
	Glaze - A thin glassy sintered layer covering the surface of a ceramic tile or slab that is waterproof		1
	Ceramic tiles and slabs with an engobed surface are considered glazed.		0
	Semi-dry pressed ceramic tiles and slabs - Ceramic tiles and slabs produced by pressing a powdered mass into molds under high pressure.		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.		0
	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
	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 4

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: -15 out of 10

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

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

Question 5

Ceramic products can be divided into three groups:

building ceramics;
facing ceramics;
art ceramics.

Which of the following products can be classified as veneer ceramics?

Score: 0 out of 10

Your Answer	Option	Right?	Result
	Dishes		0
	Pipes		0
	Facing brick		0
	Ceramic tile		1
	Tile		1
	Roof tiles		-1
	Compositions, for example, a vase with flowers, a girl on a swing, etc.		0
	Expanded clay		0
	Brick		0

Information on this issue is presented in the article Ceramic products, facing ceramics .

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Ceramic tiles: terms and definitions

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