• Betofix R4 SR

    Article No. 108425

    Betofix R4 SR

    Fibre-reinforced PCC/SPCC (RM/SRM) for the static repair of concrete structures

    Colour: grey | 1084
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    Product specifications

    On delivery

    Flexural tensile strength (28 days) ≥ 8.0 N/mm²
    Reaction to fire Class A1
    Chloride migration coefficient after 28 days 1.17 x 10-12 m²/s
    Compressive strength 1 d = ≥ 15 N/mm²
    7 d = ≥ 40 N/mm²
    28 d = ≥ 50 N/mm²
    Dynamic E-modulus ≥ 25000 N/mm²
    External surveillance QDB
    Maximum grain size 2 mm
    Capillary water uptake ≤ 0.5 kg/(m²h0.5)
    Water requirement Approx. 10.7%, equivalent to 2.7 l/25 kg
    Shrinkage (28 days) ≤ 0.55 mm/m

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

    Field of application

    • For use on floors/walls/ceilings indoors and outdoors
    • Wet spraying method
    • Repair and coating mortar according to DIN 19573
    • Concrete replacement for structurally relevant repairs
    • Concrete replacement according to
      - DIN EN 1504-3
      - Rili-SIB DAfStb 2001
      - ZTV-ING
      - DIN 19573


    • High resistance to chloride penetration
    • Sulphate-resistant
    • Freeze/thaw-resistant
    • Low effective alkali content (SR/NA)
    • Spraying and centrifuge application
    • Well suited to overhead working
    • Preparation
      • Substrate requirements

        Concrete surface:
        Stable, clean, dust-free
        Observe the applicable technical regulations for the following parameters:
        - Adhesive pull strength of the substrate
        - Minimum roughness/roughness depth

        Pre-wet the substrate so that it is slightly moist.

        Degree of purity SA 2 ½ if applying corrosion protection, otherwise SA 2

    • Application
      • Application temperature: min. 5 °C max. 30 °C
      • Mortar pump/ Trowel / Filling knife / Smoothing trowel / Mortar pump
      • Application requirements

        Temperature of the material, air and substrate: from min. 5 °C to max. 30 °C. Low temperatures will extend the working and hardening times and high temperatures shorten them.

      • Working time (+20 °C): Approx. 60 minutes


        Layer thickness
        Single layer 5 - 25 mm
        Two layers < 50 mm, apply wet on wet
        Single layer in broken-out areas < 80 mm


        Subsequent processing

        Protect fresh mortar surfaces from wind, direct sunlight, rain and/or frost for at least 3 days so that they do not dry too quickly.


        Machine working

        Please contact Remmers Technical Service (phone +49 5432 83900) before applying with machine processing.


    • Application instructions
      • Automatic mixing only.

    • Working tools / cleaning
      • Mortar pump/ Trowel / Filling knife / Smoothing trowel / Mortar pump
      • Mixing tool, trowel, smoothing trowel

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

    • Storage / shelf life
      • Protect form moisture
      • Shelf-life 12 months
      • If stored in an unopened container and in a dry place, the product will keep for approx. 12 months.

    • Usage
      • 2.0 kg / mm thick layer / m²
      • Approx. 2.0 kg/m²/mm layer thickness, or approx. 2.0 kg/dm³

      • Apply to a large enough trial area to determine the precise amount required.

    • 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.

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