Sikament RB 850 PK

USES
▪ Microsilica concrete
▪ Mass concrete pours
▪ Ready mixed concrete
▪ Long-distance transport
▪ Pumped concrete
▪ Casting in hot climates

To obtain
▪ Reduced thermal peaks
▪ High workability for longer periods
▪ Lower pumping pressure
▪ Delayed setting with longer workability
▪ Higher ultimate strengths.
▪ Reduced permeability
▪ Improved durability
CHARACTERISTICS / ADVANTAGES
Sikament RB 850 PK considerably improves the properties of fresh and hardened concrete.
APPROVALS / STANDARDS
▪ EN 934-2 Tables 3.1, 3.2, 11.1 and 11.2
▪ ASTM C-494 Type A, B, D, F, and G

PRODUCT INFORMATION
Chemical Base Organic polymer blend
Packaging 05 ltr jerry can
20 ltr plastic can
200 ltr drum
1000 ltr IBC
Bulk supply in tanker is possible on demand
Appearance / Colour Brown Liquid
Shelf Life 12 months minimum from production date if stored properly in original
unopened 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)

APPLICATION INFORMATION
Recommended Dosage Optimum dosage of Sikament RB 850 PK should be determined in trial
mixes. As a guide the following dosages are recommended as a starting
point for any trial. In normal concrete a dosage of between 0.8-2.0 litre /
100kg total cementitious material. In high performance micro silica concrete a dosage of between 1.5-3.0 litre / 100kg total cementitious material. Dependant upon mix requirement, it is possible to use a higher dosage
of Sikament RB 850 PK without causing any adverse effects upon the concrete.
Compatibility Sikament RB 850 PK is compatible with all cements and most air entraining agents meeting the ASTM standards. The addition of Sikament RB 850
PK and air entraining agent to concrete is recommended where it is required to withstand freezing and thawing cycles.
Dispensing Sikament RB 850 PK is a ready-to-use liquid which is dispensed into the
concrete together with the mixing water. The plasticising effect and water
reduction are higher if the admixture is added to the concrete after 50 to
70% of the mixing water has been added. The addition of Sikament RB
850 PK to dry aggregate or cement is not recommended.

BASIS OF PRODUCT DATA
All technical data stated in this Product Data Sheet are
based on laboratory tests. Actual measured data may
vary due to circumstances beyond our control.
ECOLOGY HEALTH AND SAFETY
For information and advice on the safe handling, storage and disposal of chemical products, users shall
refer to the most recent Safety Data Sheet (SDS) containing physical, ecological, toxicological and other
safety-related data.
LOCAL RESTRICTIONS
Please note that as a result of specific local regulations
the performance of this product may vary from country to country. Please consult the local Product Data
Sheet for the exact description of the application
fields.
LEGAL NOTES
The information, and, in particular, the recommendations relating to the application and end-use of Sika
products, are given in good faith based on Sika’s current knowledge and experience of the products when
properly stored, handled and applied under normal
conditions in accordance with Sika’s recommendations. In practice, the differences in materials, substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for a
particular purpose, nor any liability arising out of any
legal relationship whatsoever, can be inferred either
from this information, or from any written recommendations, or from any other advice offered. The
user of the product must test the product’s suitability
for the intended application and purpose. Sika reserves the right to change the properties of its
products. The proprietary rights of third parties must
be observed. All orders are accepted subject to our
current terms of sale and delivery. Users must always
refer to the most recent issue of the local Product
Data Sheet for the product concerned, copies of which
will be supplied on request. It may be necessary to adapt the above disclaimer to specific local laws and regulations. Any changes to this disclaimer may only be
implemented with permission of Sika® Corporate Legal
in Baar.