Betofix XWW4 : Concrete substitute mortar

Article No. 110925

Betofix XWW4

Coating mortar conforming to DIN 19573 in areas with biogenic sulphuric acid corrosion

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Flexural tensile strength (28 days) ≥ 4.0 N/mm²

Compressive strength 1 d = > 10 N/mm²
7 d = > 25 N/mm²
28 d = > 30 N/mm²

Dynamic E-modulus ≥ 25000 N/mm²

Maximum grain size 2 mm

Bond strength (28 d) ≥ 1.5 N/mm²

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

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

Minimum layer thickness 10 mm (for BSA attack)

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

Product details Application Usage / application examples Notes

Repair and coating mortar for wastewater facilities
In sewage systems exposed to high level of chemical attack, such as settling tanks, sludge thickeners and intakes
For building elements subjected to chemical loads in agricultural and biogas facilities
Concrete replacement according to
- DIN EN 1504-3

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
Bonding layer

Create and apply bonding layer of Betofix XWW4

Working time
(+20 °C): approx. 20 minutes

Layer thickness

Single layer 6 - 15 mm
Two layers < 30 mm, apply wet on wet

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.
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.

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.