Product Data Sheet Safety Data Sheet Show all documents
Sika® ViscoCrete® Duo MZ-1

Sika® ViscoCrete® Duo MZ-1

Combined Superplasticiser / Viscosity Modifying Admixture for Precast Concrete Production

Sika® ViscoCrete® Duo MZ-1 is a liquid high performance superplasticiser and viscosity modifying admixture providing improved rheology and robustness to high workability concretes. Sika® ViscoCrete® Duo MZ-1 is based on polycarboxylate polymers.

  • High-range water reductions resulting in higher strengths and densities
  • Improved cohesion properties in highly fluid concrete or SCC
  • Improved durability
  • Improved early and ultimate strengths
  • Optimal rheology properties for SCC production
  • Reduced segregation and bleeding
  • Reduced drying shrinkage
  • Improved consistence retention
  • Improved surface finish
Product Data Sheet Safety Data Sheet Show all documents

Usage

  • Sika® ViscoCrete® Duo MZ-1 is a unique product that is suitable for the production of precast concrete
  • High performance concrete
  • Self-compacting concrete
  • Concrete requiring high early strength
 

Advantages

  • High-range water reductions resulting in higher strengths and densities
  • Improved cohesion properties in highly fluid concrete or SCC
  • Improved durability
  • Improved early and ultimate strengths
  • Optimal rheology properties for SCC production
  • Reduced segregation and bleeding
  • Reduced drying shrinkage
  • Improved consistence retention
  • Improved surface finish

Packaging

20 litre drum, 1000 litre IBC

Colour

Clear / straw coloured liquid

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Conforms to the requirements of BS EN 934-2 Tables 3.1 & 3.2

DoP 88808048, certified by Factory Production Control Body 1029 and provided with the CE mark
DoC 53439669, certified by Factory Production Control Body 0120 and provided with the UKCA mark
Product Information

Chemical Base

Modified polycarboxylate

Shelf Life

12 months from date of production if stored properly in undamaged containers.

Storage Conditions

Dry conditions at temperatures between +5°C and +25°C. Protect from direct sunlight and frost (freezing point +1°C).

Density

1.06 kg/l (at +20°C)

pH-Value

5.0 +/- 1.0

Total Chloride Ion Content

<0.10% w/w (chloride free)

Equivalent Sodium Oxide

<0.40% w/w (alkali content)
Technical Information

Specific Advice

Air Entrainment: Negligible, normally minimal increase
Effect on Setting: Minimal effect
Effect of Overdosing: Increased workability and segregation
 

Application

Application Information

Compatibility

Sika® ViscoCrete® Duo MZ-1 may be combined with many other Sika products.

Important: Always conduct trials before combining products in specific mixes and contact our Technical Service Department for information and advice about any specific combinations.

Dispensing

Sika® ViscoCrete® Duo MZ-1 is added to the gauging water or added with it into the concrete mixer.
To take advantage of the high water reduction, a wet mixing time, which is depending on the mixing conditions and mixer performance, of at least 60 seconds is recommended.
When added on site the truck mixer shall rotate its drums at maximum revolutions for at least 1 minute per m3 concrete and a minimum of 5 minutes to achieve a uniform mix.

Restrictions

When using Sika® ViscoCrete® Duo MZ-1 a suitable mix design has to be taken into account and local material sources shall be trialled.
Sika® ViscoCrete® Duo MZ-1 shall not be added to dry cement.
Excessive water addition or overdosing may cause bleeding or segregation.
Support from our Technical Service Department is recommended
Consumption

Recommended Dosage

0.5 – 1.5% by weight of cement

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