Dry adhesive mixtures based on cement binder

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Question 1

An example of a symbol for an adhesive mixture based on a cement binder, intended for interior and exterior work, meeting increased requirements, with increased resistance to slipping, increased open time and high elasticity.

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Dry construction adhesive mixture C2 TE S1, GOST R 56387

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Dry construction adhesive mixture C1 FE S2, GOST R 56387

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Dry construction adhesive mixture C2 FE S2, GOST R 56387

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Dry construction adhesive mixture C2 TE S2, GOST R 56387

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Dry construction adhesive mixture C1 TE S2, GOST R 56387

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Dry construction adhesive mixture C1 TE S1, GOST R 56387

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Material on this issue is presented in the GOST R 56387 .

Question 2

To mix (dilute, mix) cement adhesive mixtures of class C1, it is necessary to use...

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Vegetable oil

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Primer

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PVA - emulsion of polyvinyl acetate in water, with a plasticizer and special additives

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Water

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Adhesive milk

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Water-based latex mixture

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Water latex

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Synthetic oil

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Material on this issue is presented in technical data sheets for cement adhesive mixtures.

Question 3

Adhesive mixtures must comply with the requirements of the GOST R 56387 standard and be manufactured according to technological documentation approved by the manufacturer. The main indicators of the quality of adhesive mixtures in a dry state are ...

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Low dust generation

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Color

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Content of grains of the largest coarseness

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Largest aggregate grain size

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Humidity

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Bulk density

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Material on this issue is presented in the GOST R 56387 .

Question 4

Adhesive mixtures must comply with the requirements of the GOST R 56387 standard and be manufactured according to technological documentation approved by the manufacturer. The main indicators of the quality of adhesive mixtures in the hardened state are ...

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Open time

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Strength of the adhesive bond (adhesion) after exposure to an aqueous environment

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Strength of the adhesive bond (adhesion) after exposure to an air-dry environment

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Transverse deformation

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Wetting ability

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Strength of adhesive bond (adhesion) after exposure to high temperatures

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Strength of adhesive bond (adhesion) after cyclic freezing and thawing

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Material on this issue is presented in the GOST R 56387 .

Question 5

The terms with their corresponding definitions are listed below. Indicate those for which the match is correct.

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A notched trowel is a toothed tool that allows you to create a layer of mortar mixture on the base in the form of grooves of the same thickness.

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Pot life is the period of time after mixing the mortar mixture necessary to achieve readiness for installation.

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Open time - the maximum period of time after applying a layer of mortar mixture of a given adhesion strength to the base on the base, during which it is allowed to lay facing tiles on the applied mortar mixture.

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Holding time after preparation is the maximum period of time during which a freshly prepared mortar mixture (after additional mixing without adding water) retains its technological properties.

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Sliding is the displacement under the influence of gravity of tiles or slabs laid on a layer of mortar mixture treated with a notched trowel applied to a vertical or inclined surface.

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Adhesion is the ability of a layer of mortar mixture treated with a notched trowel to wet the facing tile.

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Material on this issue is set out in the GOST R 56387 .

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