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Shrinkage reducers

Shrinkage is defined here in the context of the volume reduction of the mortar or concrete during the drying and setting stages of hydration.

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Shrinkage is defined here in the context of the volume reduction of the mortar or concrete during the drying and setting stages of hydration.

Excessive shrinkage of cement with resulting cracks and curing appearance are the most severe problems in the field of cement-based construction materials. The resulting cracks do have negative influence on the job-site quality such as:

  • Appearance
  • Usability of product
  • Adhesion problems such as debonding
  • Durability

Peramin® SRA offers the means to control the dimensional variations of cementitious binder systems in demanding applications such as self-levelling flooring compounds, screeds and technical mortars.

  • Significant reduction of both plastic and drying shrinkage in drymix mortars
  • Prevention of curling
  • Full compatibility with other Peramin additives

Products in this range

Main application of Peramin® SRA for building chemistry

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The Peramin® SRA range can also be used in combination or association with Peramin® SMF, CONPAC, DEFOAM and AXL additives.

Comparative table


Product
Additive Types
Active matter (%)
Dry content (% by mass)
Lithium sulfate monohydrate (%)
Bulk density
Density
pH (5% solution)
Particle size (% > 600 µm)
Particle size (% > 500 µm)
Particle size (% < 125 µm)
Particle size (% > 200 µm)
Viscosity (mPas)
Alkali as Na2O eq (% by mass)
Chloride content (% by mass)
Ash Content (ppm)
Water content (%)
Hydroxyl number (mg KOH/g)
Color
Form
CE Marking
Formaldehyde regulation
Reach
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