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 ...
Content of grains of the largest coarseness
Color
Largest aggregate grain size
Low dust generation
Humidity
Bulk density
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 in the hardened state are ...
Strength of adhesive bond (adhesion) after exposure to high temperatures
Transverse deformation
Strength of the adhesive bond (adhesion) after exposure to an aqueous environment
Open time
Strength of adhesive bond (adhesion) after cyclic freezing and thawing
Strength of the adhesive bond (adhesion) after exposure to an air-dry environment
Wetting ability
What requirements must be met for adhesive mortar mixtures (ready-to-use)?
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
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.
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 adhesive mortar mixtures, ready for use, must be at least 85%
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
C1 – used for interior and exterior work and meeting the minimum regulated requirements
E – mixtures with increased resistance to slipping
S1 – highly elastic mixtures
C0 – used for laying tiles with normal water absorption (at least 5% by weight) only for interior work
T – quick-hardening adhesive mixtures
C2 - used for interior and exterior work and meeting increased requirements
S2− elastic adhesive mixtures
What requirements must be met for hardened solutions of adhesive mixtures?
The transverse deformation of class S1 adhesives must be at least 2.5 mm, class S2 – at least 5 mm.
The open time to achieve an adhesive joint strength of at least 0.5 MPa should be for adhesives of the following class:
C0 and F – when gluing tiles after 10 minutes; C1 and C2 – when gluing tiles after 20 minutes; E – when gluing tiles after 30 minutes.
The strength of the adhesive connection to the base of fast-hardening class F adhesives after exposure in an air-dry environment for 6 hours should be no more than 0.5 MPa
The strength of the adhesive joint after cyclic freezing and thawing must be no less than:
0.5 MPa for C1; 1.0 MPa for C2.
The strength of the adhesive joint after exposure to an air-dry environment for 28 days must be no less than:
0.5 MPa for C0; 0.5 MPa for C1; 1.0 MPa for C2.
The strength of the adhesive joint after exposure to an aqueous environment must be no less than:
The strength of the adhesive joint after exposure to high temperatures must be no less than:
