Product Data Sheet Show all documents

Sika® Plastocrete® RT-6 Plus

Water Reducing and Set Retarding

A highly efficient and economical water-reducing and set-retarding concrete admixture with a wide dosage range. Complies with A.S.T.M. C 494-92 Type D

Sika® Plastocrete® RT-6 Plus is a ready to use concrete admixture which provides the following properties :
  • Controlled extension of setting times
  • Improve workability of the fresh concrete
  • Long lasting control of workability of concrete
  • Reduce shrinkage and creep
  • Chloride free – does not attack reinforcement
Product Data Sheet Show all documents

Usage

Sika® Plastocrete® RT-6 Plus is used as a water reducing-retarding admixtures in structural and mass concrete where a controlled extension of setting time and high quality structure is required, such as :
  • Large volume pours
 
  • Avoidance of cold joints
  • Difficult placing conditions
  • Long hauls
  • Revibrated concrete

Advantages

Sika® Plastocrete® RT-6 Plus is a ready to use concrete admixture which provides the following properties :
  • Controlled extension of setting times
  • Improve workability of the fresh concrete
  • Long lasting control of workability of concrete
  • Reduce shrinkage and creep
  • Chloride free – does not attack reinforcement

Packaging

Drum 200 L / 220 kg

IBC or Bulk 1000 L

Colour

Liquid / Dark brown

Product Details

Product Information

Composition

A blend of special organic agents

Shelf life

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

Storage conditions

Store in dry conditions at temperatures between +5 °C and +35 °C. Protect from direct sunlight and frost.
Technical Information

Concreting guidance

The standard rules of good concreting practice, concerning production and placing, are to be followed.
Laboratory trials before concreting on site are strongly recommended when using a new mix design or producing new concrete components.
Fresh concrete must be cured properly and as early as possible.

 

Application

Application Information

Compatibility

Sika® Plastocrete® RT-6 Plus is compatible with all types of Portland cement including SRC

DISPENSING

Sika® Plastocrete® RT-6 Plus should be dispensed directly into the mixing water prior to its addition to the aggregates.
When accidental overdosing occurs, Sika® Plastocrete® RT-6 Plus does not entrain excessive amounts of air, however the set retarding effect increases. During this period the concrete must be kept moist in order to prevent premature drying out.
Consumption

Recommended dosage

0.2 % - 0.6 % by weight of cement. The retardation rate achieved is directly dependant on the dosage rate which in turn is influenced by quality of cement and aggregates, water-cement ratio and temperatures.
It is advisable to carry out trial mixes to establish the exact dosage rate required.

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