The terms with their corresponding definitions are listed below. Indicate those for which the match is correct.
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.
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.
Pot life is the period of time after mixing the mortar mixture necessary to achieve readiness for installation.
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.
Adhesion is the ability of a layer of mortar mixture treated with a notched trowel to wet the facing tile.
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.
Material on this issue is set out in the GOST R 56387 .
The symbol of adhesive mixtures must consist of the name of the mixture in accordance with GOST 31189, class designation, values of basic quality indicators (if necessary) and standard designation. Adhesive mixtures are divided into the following classes...
S2− elastic adhesive mixtures
E – mixtures with increased resistance to slipping
T – quick-hardening adhesive mixtures
C0 – used for laying tiles with normal water absorption (at least 5% by weight) only for interior work
S1 – highly elastic mixtures
F – mixtures with extended open time
C1 – used for interior and exterior work and meeting the minimum regulated requirements
C2 - used for interior and exterior work and meeting increased requirements
Material on this issue is presented in the GOST R 56387 .
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 ready for use (freshly prepared) are ...
Average density
Maximum Density
Water holding capacity
Resistance to slippage
Minimum Density
Humidity
Open time
To mix (dilute, mix) cement adhesive mixtures of class C1, it is necessary to use...
PVA - emulsion of polyvinyl acetate in water, with a plasticizer and special additives
Primer
Adhesive milk
Synthetic oil
Vegetable oil
Water-based latex mixture
Water latex
Water
Material on this issue is presented in technical data sheets for cement adhesive mixtures.
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.
Dry construction adhesive mixture C1 FE S2, GOST R 56387
Dry construction adhesive mixture C1 TE S2, GOST R 56387
Dry construction adhesive mixture C2 TE S2, GOST R 56387
Dry construction adhesive mixture C2 TE S1, GOST R 56387
Dry construction adhesive mixture C1 TE S1, GOST R 56387
Dry construction adhesive mixture C2 FE S2, GOST R 56387
