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Sika® Plastiment® PZ 327

(former MPozzolith 327)

HIGH PERFORMACE RETARDING PLASTICISER FOR CONCRETE

Sika® Plastiment® PZ 327 is a high performance plasticising retarder, beneficial in maintaining workability especially in high ambient temperatures. Suitable for use in hot and tropical climatic conditions.

  • Considerably improves the cohesion of concrete, reducing segregation and bleeding
  • Suitable for concrete where fine aggregates of poorly graded particle are part of the mix
  • Reduces concrete placing challenges in hot weather by improved workability and workability retention in conjunction with extended setting times
  • Improved surface finish
  • Improved trowellability
  • Reduces honeycombs and cold joint
  • Improves pumpability of concrete
  • Improves durability due to the reduction in permeability in hardened concrete
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Usage

  • Ready mix concrete where workability retention coupled with retardation of initial set are beneficial
  • Reduction in permeability helps reducing effect of groundwater salts on concrete and steel
  • To improve cohesion, workability and compactability in concretes using poorly graded/shaped fine aggregates
  • Hot weather concreting where controlled delay to initial set is of prime importance
  • Large slabs or bridge decks, etc. where the extension of vibration is needed to avoid cold joints
  • As a synergy admixture in combination with Sika superplasticizer
  • Ideal for site batches, precast and ready mixed concrete
 

Advantages

  • Considerably improves the cohesion of concrete, reducing segregation and bleeding
  • Suitable for concrete where fine aggregates of poorly graded particle are part of the mix
  • Reduces concrete placing challenges in hot weather by improved workability and workability retention in conjunction with extended setting times
  • Improved surface finish
  • Improved trowellability
  • Reduces honeycombs and cold joint
  • Improves pumpability of concrete
  • Improves durability due to the reduction in permeability in hardened concrete

Packaging

210 L drums, 1000 L flowbin or bulk supply in tanker

Colour

Dark brown/black liquid

Product Details

Sustainability / Certifications / Approvals

CERTIFICATES AND TEST REPORTS

Sika® Plastiment® PZ 327 follows the requirements of ASTM C494; Types A,B and D and BS EN 934-2
Product Information

Composition

Modified organic compounds

Shelf life

12 months from date of production if stored properly

Storage conditions

Store in undamaged, unopened, original sealed packaging in dry conditions at temperatures between +5°C and +45°C. Mix well before use.

Density

~1.12 kg/l (+25°C)

Total chloride ion content

Nil

(BS EN 934-2)

 
Technical Information

Concreting guidance

The standard rules of good concreting practice for production and placing must be observed when using Sika® Plastiment® PZ 327 in concrete. Refer to relevant standards. Fresh concrete must be cured properly especially at high temperatures in order to prevent plastic and drying shrinkage. Use Sika® Antisol® products as a curing agent or apply wet hessian.

Application

Application Information

Compatibility

Sika® Plastiment® PZ 327 is suitable for mixes containing all types of cement and supplementary cementitious materials such as: Microsilica (Silica Fume), Fly Ash (PFA), GGBS (Ground Granulated Blast Furnace Slag) and the following Sika products:
▪ Sikament®
▪ SikaPump®
▪ Sika®FerroGard®,
▪ SikaFume®
▪ SikaFiber®
▪ Sika® Aer
▪ Sika® Stabilizer
▪ SikaControl®

We recommend for trial mixes to be performed to establish the required performance when combining Sika® Plastiment® PZ 327 with the above products or other admixtures. Please consult our Sika Technical Department for further assistance.

Dispensing

Sika® Plastiment® PZ 327 should be added to the concrete mix during the mixing cycle at the same time as the water or the aggregate. Never add Sika® Plastiment® PZ 327 to the dry cement. No extension to normal mixing times is necessary.
Consumption

Recommended dosage

As a general guide, a dosage range of 200 ml to 850 ml per 100 kg of total binder is recommended. Depending on the desired properties, a dosage of up to 1000 ml per 100 kg of binder shall be used. Trials should be carried out to determine the optimum dosage of Sika® Plastiment® PZ 327.

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