Betofix R4 SR : Concrete replacement mortar

Article No. 108425

Betofix R4 SR

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

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Flexural tensile strength (28 days) ≥ 8.0 N/mm²

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

External surveillance QDB

Maximum grain size 2 mm

Capillary water uptake ≤ 0.5 kg/(m²h^0.5)

Water requirement Approx. 10.7%, equivalent to 2.7 l/25 kg

Shrinkage (28 days) ≤ 0.7 mm/m

Static modulus of elasticity ≥ 25000 N/mm²

Surface tensile strength ≥ 2.0 N/mm²

Reaction to fire class A1

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

Product details Application Usage / application examples Notes

Wet spraying method
Repair and coating mortar according to DIN 19573
Concrete replacement for structurally relevant repairs
Concrete replacement according to
- DIN 19573
- DIN EN 1504-3
- Rili-SIB DAfStb 2001
- ZTV-ING
In the drinking water sector, meets the requirements of DVGW Worksheet W 270 and W 347

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.

Reinforcement:
Degree of purity SA 2 ½ if applying corrosion protection, otherwise SA 2
Application
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
Mixing tool, trowel, smoothing trowel

Clean tools with water while the material is still fresh.
Storage / shelf life
If stored in an unopened container and in a dry place, the product will keep for approx. 12 months.

Usage
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.