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SikaPlast® PH 8393

Retarding superplasticizer based on PCE for Ready-Mix Concrete

SikaPlast® PH 8393 is an economical admixture based on modified polycarboxylate ether. The product has been primarily developed for applications in ready mix and site-batched concrete. SikaPlast® PH 8393 is specially designed to allow considerable reduction of mixing water while
maintaining control on extend of set retardation.
SikaPlast® PH 8393 is free of chloride & low alkali. It is compatible with all types of cements.

  • Good dispersion even in mixes with high fines
  • High workability for longer periods
  • Lower pumping pressure
  • Resistance to segregation even at high workability
  • Extended setting with longer workability
  • Reduced water content for a given workability
  • Higher ultimate strengths
  • Increased ease in finishing concrete
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Usage

  • Ready mixed concrete
  • Long-distance transporting
  • Pumped concrete
  • High workability without segregation or bleeding
  • High performance concrete for durability
  • Congested/complex reinforced sections
  • Mixes requiring >20% water reductions
 

Advantages

  • Good dispersion even in mixes with high fines
  • High workability for longer periods
  • Lower pumping pressure
  • Resistance to segregation even at high workability
  • Extended setting with longer workability
  • Reduced water content for a given workability
  • Higher ultimate strengths
  • Increased ease in finishing concrete

Packaging

SikaPlast® PH 8393 is supplied in 225 Kg, 1000 Kg or bulk on request.

Colour

Reddish brown liquid

Product Details

Sustainability / Certifications / Approvals

CERTIFICATES AND TEST REPORTS

Complies with ASTM C494 Type B, D & G, EN 934-2 T3.1/3.2, IS 9103
Product Information

Composition

Modified Poly-Carboxylate Ether (PCE)

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 +10°C and +40°C. Protect from direct sunlight and frost.

Density

~1.08 ± 0.02 kg/l at 25°C

(ISO 758)

pH-Value

≥ 6

Total chloride ion content

Nil

Application

Application Information

Compatibility

SikaPlast® PH 8393 may be combined with many other Sika® Products.
Compatible with all types of cement and cementitious materials.
Important: Always conduct trials before combining products in specific mixes and contact our Technical Service Department for information about specific combinations.
Consumption

Recommended dosage

Optimum dosage of SikaPlast® PH 8393 should be determined with trial mixes. As a guide, a dosage range of 300 ml to 1800ml per 100kg of cementitious material is normally recommended. Because of variations in concrete materials, job site conditions, and/or applications, dosages outside of the recommended range may be required. In such cases, contact your local Sika representative.
For additional information on SikaPlast® PH 8393 admixture or on its use in developing concrete mixes with special performance characteristics, contact your local Sika representative.

 
Effects of over dosage

A severe over-dosage of SikaPlast® PH 8393 can result in the following:

  • Reduced permeability
  • Long extension of initial and final set
  • Increase in air entrainment
  • Bleed/segregation of mix, quick loss of workability
  • Increased plastic shrinkage

A slight overdosing may not adversely affect the ultimate strength of the concrete and can achieve higher strengths than normal concrete, provided it is properly compacted and cured. Due allowance should be made for the effect of fluid concrete pressure on form work, and stripping times should be monitored.
In the event of over dosage, consult your Sika representative immediately.
Application steps

CLEANING OF EQUIPMENT

Clean all tools and application equipment with water immediately after use. Hardened / cured material can only be mechanically removed.

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