MasterRheobuild® 834

MasterRheobuild® 834 is a synthetic polymer-based product designed to provide rheoplastic properties to concrete. Rheoplastic concrete is a fluid mix with a slump of at least 200mm, allowing it to flow easily while preventing segregation. Despite its fluidity, it maintains the same water/cement ratio as low slump concrete (25mm) without the need for admixtures.

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USES
Sikament® RB 834 significantly enhances the properties of both fresh and hardened concrete, and is ideal for:

  • Microsilica concrete
  • Mass concrete pours
  • Ready-mixed concrete
  • Long-distance transport
  • Pumped concrete
  • Casting in hot climates

CHARACTERISTICS / ADVANTAGES

  • Reduced thermal peaks
  • Extended workability for longer periods
  • Reduced pumping pressure
  • Delayed setting for extended workability
  • Increased ultimate strengths
  • Lower permeability
  • Improved durability

APPROVALS / STANDARDS

  • ASTM C-494 Type A, B, D, & G
  • BS 5075 Part 1

PRODUCT INFORMATION

  • Packaging: Available in IBC containers and 210-liter drums
  • Shelf Life: 12 months from the production date, if kept in unopened, undamaged, and sealed packaging
  • Storage Conditions: Store at temperatures above +5°C. If frozen, thaw at +5°C or higher and reconstitute gently using mechanical agitation (do not use pressurized air). Keep out of direct sunlight and protect from temperature extremes.
  • Appearance/Colour: Dark brown liquid
  • Specific Gravity: 1.15 ± 0.02 at 25°C
  • pH Value: > 6
  • Total Chloride Ion Content: < 0.2%

APPLICATION INFORMATION

  • Recommended Dosage: The optimal dosage should be determined via trial mixes. As a guideline, a starting range of 800ml to 2000ml per 100kg of cementitious material is suggested. For high-performance concrete, up to 2000ml per 100kg may be used, subject to prior site trials.
  • Compatibility: Sikament® RB 834 is compatible with all types of cement and most air-entraining agents that meet ASTM standards. It is recommended for use with SikaControl®-720 AER (air-entraining agent) for concrete exposed to freeze-thaw conditions.
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