Contact us if document is not available

Show all documents

Sika® Plastiment® PZ 383 NT

LOW DOSAGE RETARDING AND PLASTICIZING ADMIXTURE FOR CONCRETE

Sika® Plastiment® PZ 383 NT is a liquid admixture which acts on the cement particles in the mix, combining the effects of a powerful plasticizer and deflocculating agent with controlled retardation. Suitable for use in hot and tropical climatic conditions.

  • Considerably extends vibration limit of concrete mixes thus reducing incidence of honeycombing and cold joints
  • Reduces placing challenges in hot weather concreting by improving workability and workability retention
  • Improves trowellability and surface finish
  • Improves pumpability of concrete
  • Considerably reduces permeability
  • Cost effective
Inquire Now

Contact us if document is not available

Show all documents

Usage

  • Hot weather concreting where controlled delay to initial set is of prime importance
  • Ready mix concrete where workability retention coupled with retardation of initial set are beneficial
  • To improve cohesion, workability and compaction in concretes when using poorly graded / shaped fine aggregates
  • Large slabs or bridge decks, etc. where extended  vibration is needed to avoid cold joints
  • As a synergy admixture in combination with a a Non-PCE basedsuperplasticizer
 

Advantages

  • Considerably extends vibration limit of concrete mixes thus reducing incidence of honeycombing and cold joints
  • Reduces placing challenges in hot weather concreting by improving workability and workability retention
  • Improves trowellability and surface finish
  • Improves pumpability of concrete
  • Considerably reduces permeability
  • Cost effective

Packaging

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

Colour

Dark brown liquid

Product Details

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

~1.07 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 383 NT 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 383 NT 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 to perform trial mixes to establish the required performance when combining Sika® Plastiment® PZ 383 NT with the above products or other admixtures. Please consult our Sika Technical Department for further assistance.

Dispensing

Sika® Plastiment® PZ 383 NT is added to the gauging water or simultaneously poured with it into the concrete mixer at the batching plant. Do not
add Sika® Plastiment® PZ 383 NT directly to the dry mix. The addition of the remaining gauging water (to fine tune concrete consistency) may only
be started after two-thirds of the wet mixing time to avoid surplus water in the concrete.
Consumption

Recommended dosage

In all cases, we recommend to conduct trial mixes to determine the correct levels of admixture required to achieve the desired concrete properties. The following figures should be utilized as a starting point for these trials. For site batched concrete where extended vibration time and improved finishing properties are of prime importance, a dosage of between 200 ml and 300 ml per 100 kg of binder shall be used as a starting point for the trials. For ready mixed concrete, extended concrete workability is of prime importance, a dosage of between 300 ml to 600 ml per 100 kg of binder shall be used as a starting point. Dependent on the desired properties, a dosage of up to 800 ml per 100 kg of binder may be utilized. Higher dosages may be required when certain combinations of materials and conditions are present.

Documents