• Retarder (VZ)

    Article No. 013030

    Retarder (VZ)

    Set retarding admixture for concrete, reinforced concrete and prestressed concrete

    0130 | Retarder (VZ)
    Size / Quantity

    Product specifications

    On delivery

    Composition Liquid
    Density (20°C) Approx. 1.06 g/cm³
    Colour Red-orange
    Solids content % by mass 8%
    pH value Approx. 11
    Water-soluble chloride content ≤ 0.10% by mass
    Alkali content ≤ 6.0% by mass

    The stated values represent typical product characteristics and are not to be construed as binding product specifications.

    Field of application

    • For use indoors and outdoors
    • Concrete, reinforced concrete
    • Ready-mix concrete
    • Construction, civil engineering and hydraulic engineering
    • Cementitious screeds
    • Floating and bonded screeds


    • Water-based
    • Delays the initial setting of cement
    • Extends the working time
    • Reduces temperature stress during hardening
    • Monitored according to EN 934-2
    • Application
      • Application temperature: min. 5 °C max. 25 °C
      • Application requirements

        Temperature of the material, air and substrate: from min. +5 °C to max. +25 °C

      • Add the product to the mixing water.

    • Application instructions
      • To determine the exact quantity to be added, a suitability test pursuant to DIN EN 206-1 in conjunction with DIN 1045-2 is required before use.

    • Working tools / cleaning
      • Dosage aid, suitable machine technology

      • Clean tools with water while the material is still fresh.

    • Storage / shelf life
      • Shelf-life 24 months
      • Store cool / close containers
      • If stored unopened in its original container in a cool, dry place and protected against frost, the product will keep for at least 24 months.

    • Usage
      • Cement 1 kg / concrete admixture 2 - 20 ml
      • Approx. 0.2 – 20.0 ml/kg cement, 0.2 – 2.2% by mass of cement weight

    • Application examples

      • Retarder 
        added to
        CEM I
        32.5 R
        CEM I
        42.5 R
        CEM III
        32.5 A
        cementtime in hrstime in hrstime in hrs
        noneapprox. 2.5approx. 2approx. 3
        0.5%approx.  4approx. 3approx. 5
        1.0%approx. 5approx. 4approx. 7
        2.0%approx. 7approx. 6approx. 9

    • General information
      • Deviations from applicable regulations must be agreed separately.

    • Disposal instructions
      • Larger quantities of leftover product should be disposed of in the original containers in accordance with the applicable regulations. Completely empty, clean containers should be recycled. Do not dispose of together with household waste. Do not allow to enter the sewage system. Do not empty into drains.

    • Safety / regulations
      • For further information on the safety aspects of transporting, storing and handling the product and on disposal and environmental matters, please see the current Safety Data Sheet.