Effect of redispersible emulsion powder in mortar


Release time:

2021-03-23

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Redispersible emulsion powder in the mortar is to make the traditional cement mortar brittleness, high elastic modulus and other weaknesses to be improved

the role of redispersible latex powder:
In the mortar is to make the traditional cement mortar brittleness, high elastic modulus and other weaknesses are improved, given the cement mortar better flexibility and tensile bond strength, to resist and delay the generation of cement mortar cracks, due to the polymer and mortar to form an interpenetrating network structure, the formation of a continuous polymer film in the pores, strengthen the bond between the aggregate, blocking part of the pores in the mortar, therefore, the performance of the hardened modified mortar is greatly improved than that of the cement mortar.
 
1. The redispersible latex powder is dispersed into a film and used as a second adhesive to play a reinforcing role;
2, the protective colloid is absorbed by the mortar system (after the film will not be destroyed by water, or "secondary dispersion");
3. The film-forming polymer resin is distributed as a reinforcing material in the whole mortar system, thereby increasing the cohesion of the mortar;
 
In wet mortar
Improve the construction performance; improve the flow performance; increase thixotropy and anti-sagging; improve cohesion; extend the open time; enhance water retention.
 
After curing of mortar
Improve tensile strength; Increase bending strength; Reduce elastic modulus; Improve deformability; Increase material compactness; Increase wear resistance; Improve cohesive strength; Reduce carbonization depth; Reduce water absorption of materials; Make materials have good water addition (add water addition powder)
 

Key words:

Redispersible latex powder