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
Humidity
Maximum Density
Minimum Density
Water holding capacity
Open time
Resistance to slippage
Material on this issue is presented in the GOST R 56387 .
What requirements must be met for adhesive mortar mixtures (ready-to-use)?
The average density of adhesive mortar mixtures must exceed 1800 kg/m3
Resistance to slipping of adhesive mixtures is characterized by the value of displacement under the influence of gravity of facing tiles laid on a vertical or inclined surface. For adhesive mixtures, the offset value should be no more than 1.5 mm.
Resistance to slipping of adhesive mixtures is characterized by the value of displacement under the influence of gravity of facing tiles laid on a vertical or inclined surface. For adhesive mixtures of class T, the displacement value should be no more than 0.5 mm, for mixtures of other classes - no more than 0.7 mm.
The average density of adhesive mortar mixtures is set by the manufacturer at the request of the consumer
The water-holding capacity of ready-to-use adhesive mortar mixtures must be at least 98%
The water-holding capacity of adhesive mortar mixtures, ready for use, must be at least 85%
The terms with their corresponding definitions are listed below. Indicate those for which the match is correct.
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.
Pot life is the period of time after mixing the mortar mixture necessary to achieve readiness for installation.
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.
Adhesion is the ability of a layer of mortar mixture treated with a notched trowel to wet the facing tile.
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.
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 .
To mix (dilute, mix) cement adhesive mixtures of class C1, it is necessary to use...
Vegetable oil
Water
PVA - emulsion of polyvinyl acetate in water, with a plasticizer and special additives
Adhesive milk
Water latex
Synthetic oil
Primer
Water-based latex mixture
Material on this issue is presented in technical data sheets for cement adhesive mixtures.
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 ...
Wetting ability
Strength of the adhesive bond (adhesion) after exposure to an aqueous environment
Strength of adhesive bond (adhesion) after cyclic freezing and thawing
Strength of the adhesive bond (adhesion) after exposure to an air-dry environment
Transverse deformation
Strength of adhesive bond (adhesion) after exposure to high temperatures
