Sika® Aer Solid

Hollow polymer microspheres for artificial air pores in concrete to increase freeze-thaw resistance

Sika® Aer Solid can be utilised instead of air-entraining agents for the reliable production of mortar and concrete with high resistance to freezing/thawing and de-icing salts.

Sika® Aer Solid are tiny prefabricated air bubbles with elastic plastic envelopment. They work similar to those air pores created by air-entraining agents:
  • An expansion possibility for freezing water
  • A reduction of the capillary suction effect
  • A substitute of fines
  • This causes in mortar and concrete:
  • A high resistance to freezing/thawing and de-icing salts
  • A reduced capillary water absorption
  • An improved workability by means of "ball bearing effect"
The advantages of Sika® Aer Solid compared to conventional air-entraining agents are:
  • Easily obtaining of a high resistance to freezing/thawing and de-icing salts even under difficult conditions
  • No rising to the surface even in very flowable concretes
  • Low influence on the compressive strength