SikaViscoCrete-3355

Description

Uses

Sika® ViscoCrete®-3355 facilitates significant water reduction, ensuring excellent flowability with optimal cohesion and strong self-compacting behavior. It is suitable for the following types of concrete:

• High-flow concrete
• Self-compacting concrete (S.C.C.)
• Concrete with high water reduction (up to 30%)
• High-strength concrete

The combination of high-water reduction, superior flowability, and increased early strength offers clear advantages in the applications listed above.

Characteristics / Advantages

Sika® ViscoCrete®-3355 works by absorbing onto cement particles, creating a steric separation effect. Concrete mixed with this superplasticizer exhibits the following properties:

• Excellent flowability, reducing the effort required for placement and compaction
• Strong self-compacting characteristics
• Exceptional water reduction (greater than 25%), leading to high-density and strength concrete
• Enhanced early strength development
• Improved shrinkage and creep performance
• Slower carbonation rate

Sika® ViscoCrete®-3355 is chloride-free and does not contain ingredients that promote steel corrosion, making it suitable for reinforced and pre-stressed concrete. It provides extended workability, and, depending on mix design and material quality, self-compacting properties can be maintained for over 1 hour at 30°C.

Approvals / Standards

Sika® ViscoCrete®-3355 meets the requirements of ASTM C494; Type G.

Product Information

• Chemical Base: Aqueous solution of modified Polycarboxylate co-polymers
• Packaging:
  • 5 ltr jerry can
  • 20 ltr plastic can
  • 200 ltr drum
  • 1000 ltr IBC
  • Bulk supply via tanker available on request
• Shelf Life: Minimum 12 months from production, if stored correctly in unopened packaging
• Storage Conditions: Store in a dry area between 5°C and 35°C, away from direct sunlight
• Appearance / Colour: Clear, colorless to yellowish liquid
• Specific Gravity: 1.02 – 1.1 at 25°C
• pH-Value: 3 – 7 at 25°C
• Chloride Ion Content: Nil

Application Information

• Recommended Dosage:
  • For soft plastic concrete: 0.3% – 1% by weight of binder
  • For flowing and self-compacting concrete: 0.6% – 1.5% by weight of binder
  • Higher dosages (up to 2%) can be used depending on mix design and concrete requirements
    Pre-trials with local materials should be conducted to confirm the exact dosage.
    Note: Dosages greater than 1.0% may cause set retardation with certain binders.
• Dispensing: Sika® ViscoCrete®-3355 should be added to the gauging water or poured simultaneously with it into the concrete mixer. For optimal water reduction, mix thoroughly for a minimum of 60 seconds. The remaining gauging water can be added after two-thirds of the wet mixing time to avoid excess water in the concrete.
• Compatibility: Sika® ViscoCrete®-3355 can be combined with many other Sika products, including:
  • Sika Pump
  • Sika Fume
  • Sika Retarder and Sika Retardol-25
    Trial mixes should be performed before combining products to ensure compatibility. For further advice, consult Sika’s technical services department.