What requirements must be met for adhesive mortar mixtures (ready-to-use)?
The average density of adhesive mortar mixtures is set by the manufacturer at the request of the consumer
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.
The water-holding capacity of adhesive mortar mixtures, ready for use, must be at least 85%
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 water-holding capacity of ready-to-use adhesive mortar mixtures must be at least 98%
The average density of adhesive mortar mixtures must exceed 1800 kg/m3
Material on this issue is presented in the GOST R 56387 .
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 C2 TE S1, GOST R 56387
Dry construction adhesive mixture C1 TE S2, GOST R 56387
Dry construction adhesive mixture C2 FE S2, GOST R 56387
Dry construction adhesive mixture C1 TE S1, GOST R 56387
Dry construction adhesive mixture C2 TE S2, GOST R 56387
To mix (dilute, mix) cement adhesive mixtures of class C1, it is necessary to use...
Synthetic oil
PVA - emulsion of polyvinyl acetate in water, with a plasticizer and special additives
Adhesive milk
Water-based latex mixture
Primer
Water latex
Water
Vegetable oil
Material on this issue is presented in technical data sheets for cement adhesive mixtures.
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...
F – mixtures with extended open time
S2− elastic adhesive mixtures
T – quick-hardening adhesive mixtures
S1 – highly elastic mixtures
C0 – used for laying tiles with normal water absorption (at least 5% by weight) only for interior work
C1 – used for interior and exterior work and meeting the minimum regulated requirements
C2 - used for interior and exterior work and meeting increased requirements
E – mixtures with increased resistance to slipping
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 ...
Open time
Resistance to slippage
Maximum Density
Humidity
Minimum Density
Water holding capacity
Average density
