Cementitious R4 mortar for repairing, protecting and waterproofing concrete structures Sika MonoTop-4100 Protect is a one-part, cementitious, fibre reinforced, low shrinkage, R4 Classification concrete repair mortar. It is suitable for repairing, protecting and waterproofing concrete structures.
- Does not require a bonding primer ('all-in-one' product).
- Sulphate resistant.
- Layer thickness 4–60 mm.
- Hand and machine application (wet spray technique).
- Easy to apply.
- Very low shrinkage behaviour.
- Low permeability.
- Suitable for contact with drinking water.
- EuroClass A1 reaction to fire rating.
- Class R4 of EN 1504-3.
- Restoration work (Principle 3, method 3.1 and 3.3 of EN 1504-9). Repair of spalling and damaged concrete in infrastructure and superstructure works.
- Structural strengthening (Principle 4, method 4.4 pf EN 1504-9). Increasing the bearing capacity of the concrete structure by adding mortar.
- Preserving or restoring passivity (Principle 7, method 7.1 and 7.2 of EN 1504-9) - Increasing cover with additional mortar and replacing contaminated or carbonated concrete.
- Moisture control (Principle 2, method 2.3 of EN 1504-9) - Coating.
- Increasing resistivity (Principle 8, method 8.3 of EN 1504-9) - Coating.
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Usage Sika MonoTop-4100 Protect may only be used by experienced professionals. Repairs, protects and waterproofs all types of reinforced concrete structures and components for: - Bridges
- Buildings
- Civil engineering structures
- Marine structures
- Dams
- Potable water structures
- Waste water systems unexposed to biogenic sulphuric acid corrosion (for areas subject to this, use Sika MonoTop-4400 MIC)
- Structures requiring a Class R4, R3, R2, R1 mortar
- Interior and exterior use
Advantages - Does not require a bonding primer ('all-in-one' product).
- Sulphate resistant.
- Layer thickness 4–60 mm.
- Hand and machine application (wet spray technique).
- Easy to apply.
- Very low shrinkage behaviour.
- Low permeability.
- Suitable for contact with drinking water.
- EuroClass A1 reaction to fire rating.
- Class R4 of EN 1504-3.
- Restoration work (Principle 3, method 3.1 and 3.3 of EN 1504-9). Repair of spalling and damaged concrete in infrastructure and superstructure works.
- Structural strengthening (Principle 4, method 4.4 pf EN 1504-9). Increasing the bearing capacity of the concrete structure by adding mortar.
- Preserving or restoring passivity (Principle 7, method 7.1 and 7.2 of EN 1504-9) - Increasing cover with additional mortar and replacing contaminated or carbonated concrete.
- Moisture control (Principle 2, method 2.3 of EN 1504-9) - Coating.
- Increasing resistivity (Principle 8, method 8.3 of EN 1504-9) - Coating.
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Technical Information Compressive Strength | Time | Strength | | 1 day | ~15 MPa | | 7 days | ~40 MPa | | 28 days | ~50 MPa |
Modulus of Elasticity in Compression
Flexural Strength | Time | Strength | | 1 day | ~4 MPa | | 7 days | ~5 MPa | | 28 days | ~6 MPa |
Tensile adhesion strength
Shrinkage | ~500 μm/m (+20 °C / 65 % relative humidity at 28 days) | (EN 12617-4) |
Restrained Shrinkage / Expansion
Capillary Absorption | ≤ 0.1 kg·m-2·h-0.5 | (EN 1062-3) |
Water Penetration under Pressure
Water Penetration under Negative Pressure No humidity in the surface
Permeability to Water Vapour | SD= 1 m, Class I | (EN ISO 7783) |
Carbonation Resistance | dk ≤ control concrete MC (0.45) | (EN 13295) |
Reaction to Fire | EuroClass A1 | (EN 1504-3 cl. 5.5) |
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Application Information Mixing Ratio 4.4 to 4.5 litres of water for 25 kg bag Fresh mortar density ~2.1 kg/l Layer Thickness 4 mm minimum / 60 mm maximum Ambient Air Temperature +5 °C minimum / +30 °C maximum Substrate Temperature +5 °C minimum / +30 °C maximum Pot Life ~45 minutes at +20 °C |
The above design is only a sample of the options available, for reference purposes only. Our policy of continuous improvement may result in a change of specifications without notice. If any discrepencies might be between the data sheet values and standards, we reserve the rights to make technical changes. Our company will not be held responsible, as all or any of pictures, drawings, weights and dimensions details or other elements in this document are only indicative and must not be considered contractual. Contact our sales team for other specifications or custom made products.
Contact our sales team for other specifications or custom made products.
