Product Data Sheet Show all documents

Sika® Retarder-47 PK

Set retarding admixture for concrete

Sika® Retarder-47 PK is a liquid admixture developed for the control of cement hydration. Sika® Retarder-47 PK retards and stabilizes concrete mixes without negatively influencing their final strength.

Sika® Retarder-47 PK retards the hydration of cement.
  • Strong retardation to facilitate long haulage duration
  • High resistance to segregation with reduced bleed
  • Extended workability
Find a Store
Product Data Sheet Show all documents

Usage

Sika® Retarder-47 PK retards the initial set in concrete to allow and extended period of workability.  

Advantages

Sika® Retarder-47 PK retards the hydration of cement.
  • Strong retardation to facilitate long haulage duration
  • High resistance to segregation with reduced bleed
  • Extended workability

Packaging

05 ltr jerry can
20 ltr plastic can
200 ltr drum
1000 ltr IBC
Bulk supply in tanker is possible on demand

Colour

Light Brown Liquid

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Conforms to the requirements of ASTM C 494 Type B and BS EN 934-2 Table 8.
Product Information

Chemical Base

Organic polymer blend 

Shelf Life

12 months from date of production if stored properly in undamaged unopened, original sealed packaging.

Storage Conditions

The product must be stored properly in undamaged, unopened original sealed packaging in dry conditions at temperatures between +5° C and
+35° C. Protect from direct sunlight and frost.

pH-Value

≥ 6

Total Chloride Ion Content

≤ 0.2% (EN934-2)

Specific gravity

1.16 ± 0.03

Application

Application Information

Compatibility

Sika® Retarder-47 PK should not be mixed directly with the following admix- tures prior to dispensing as solids can form in the mixture. This can cause increased viscosity and pump / pipe blockages:

  • Sika® Plastiment®-190
  • SikaRapid®-1
  • SikaRapid®-800 ECO
  • Sika® Viscoflow®-1000
  • Sika® Viscoflow®-2000

Important: Always conduct trials before combining products in specific mixes and contact our Technical Service Department for information and advice about any specific combinations.

Dispensing

Sika® Retarder-47 PK should be dispensed through suitably calibrated dosing equipment.
Consumption

Recommended Dosage

0.2–2.0 % by weight of cement
Application steps

APPLICATION

  • The standard rules of good concreting practice, con- cerning production and placing, are to be followed.
  • Laboratory trials shall be carried out before concreting on site, especially when using a new mix design or producing new concrete components.
  • Fresh concrete must be cured properly and curing applied as early as possible.
  • Sika® Retarder-47 PK shall not be added to dry cement
  • Overdosing will result in an increase in setting time

Documents