weberfloor 4640 external screed - R4 external repair and levelling screed
Verified by manufacturer 5 days ago
14% Water Demand as a Repair Mortar
14% Water Demand as a Repair Mortar
Flowable, polymer modified R4 concrete repair mortar and levelling compound.
Application
Suitable for concrete floor surfaces which are subject to damp, frost and de-icing salts as well as high mechanical loads.
Description
R4 concrete repair and levelling screed that is fibre-reinforced and polymer-modified. Weberfloor 4640 external screed is a combination product used to renovate concrete substrates. It can be used as a concrete repair mortar or as a levelling compound in external concrete areas such as underground car parks, warehouses, manufacturing facilities etc.
Features and benefits:
- CE marked: CT - C50 - F7.
- Class R4 repair mortar according to EN 1504-3.
- Floor levelling compound according to EN 13813.
- Can be mixed by hand or pump applied.
- Resistant to frost and de-icing salts.
- Can be used as a top wear layer for direct use.
- Fibre-reinforced.
- High mechanical strength.
General information
Color | Grey |
Finish | Cement |
Material | Cementitious Fibre cement Polymer-modified cement |
Shape | Formless |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | Ten year |
Uniclass | |
CAWS | C42/320 Levelling/ smoothing coats C42/310 Repair mortar |
Specification data - Concrete repair mortars
Classification data | |
Standard | To BS EN 1504-3. |
Mortar type | Cement-based polymer-modified fibre-reinforced. |
Performance requirement class | R4. |
Water:cement ratio | 3.5–3.75 litres/25kg. Guidance for specification option: 14–15%. |
Compressive strength | To EN 12190, >50 MPa. |
Chloride Ion content | To EN 1015-17, ≤0.05%. |
Adhesive bond | To EN 1542, ≥2.0 MPa. |
Elastic modulus | To EN 13412, ≥20 GPa. |
Thermal compatibility | To EN 13687-1, ≥2.0 MPa. |
Capillary absorption | To EN 13057, ≤0.5 kg/m²·√h. |
Skid resistance | To EN 13036-4, Class III. |
Reaction to fire | To EN 13501-1: Class A2-s1. |
Application temperature range | 8–25°C. |
Thickness | 10–80 mm. Guidance for specification option: Minimum–maximum thickness. |
Curing time | (Open to full load) 7 days at +20°C. Guidance for specification option:
|
Sustainability data
Contains Red List materials | No |
Country of material origin | Europe |
Country of product manufacture | United Kingdom |
Manufacturing plant location | |
Material | Cementitious Fibre cement Polymer-modified cement |
Literature
Literature type
weberfloor 4640 external screed 18-11-24
DOP-DE-016196-EN-weber.floor_4640_1504-3_V_3.0
weberfloor 4640 external screed flyer
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