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    MasterSet R 300 

    Set retarding admixture 

    MasterSet R 300 description:

    MasterSet R 300 ready-to-use liquid admixture is used for making more uniform and predictable high-performance concrete while retarding its setting time to facilitate placing and finishing operations.

    Recommended uses:

    • Prestressed concrete
    • Precast concrete
    • Reinforced concrete
    • Shotcrete
    • Lightweight concrete
    • Pumped concrete
    • 4x4 Concrete
    • Pervious concrete
    • Self-consolidating concrete (SCC)

    What are the unique features of MasterSet R 300?

    • Reduced water content required for a given workability
    • Retarded setting characteristics
    • Improved workability
    • Reduced segregation
    • Superior finishing characteristics for flatwork and cast surfaces
    • Moderate to extended retardation – depending on the dosage rate
    • Full-form deflection can take place (before concrete sets) in extended pours for bridge decks, cantilevers, non-shored structural elements, etc
    • Meets ASTM C 494/C 494M requirements for Type B, retarding, and Type D, water-reducing and retarding, admixtures

    What are the benefits of MasterSet R 300?

    • Flexibility in scheduling of placing and finishing operations
    • Offsets effects of early concrete hardening during extended delays between mixing and placing
    • Helps eliminate cold joints
    • Peak temperature and/or rate of temperature rise in mass concrete lowered thereby reducing thermal cracking
    • Increased compressive and flexural strengths​

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