High-performance, more sustainable, Class R4 concrete repair mortar Sika MonoTop-4012 is a one-part, cementitious, fibre reinforced, low shrinkage repair mortar. It contains recycled raw materials and can reduce the carbon footprint application activity calculations. - Uses recycled raw materials.
- Layer thickness 6 to 120 mm.
- Sulphate resistant.
- Hand and machine application (wet spray technique).
- Easy to apply.
- Very low shrinkage.
- Dust reduced for a cleaner, healthier environment.
- Good resistance to sea water.
- Does not require a bonding primer.
- Can be safely used in contact with steel (very low chloride content).
- Low permeability.
- EuroClass A1 reaction to fire rating.
- Class R4 of EN 1504-3.
- Resistant to sulfuric acid attack (exposure classes XWW1 and XWW3).
- Drinking Water Certified.
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Usage Sika MonoTop-4012 is used to repair all types of reinforced concrete structures and components for: - Buildings.
- Civil engineering structures.
- Dams.
- Marine structures.
- Suitable for interior or exterior applications.
- Sewage and waste water treatment plants.
The product is used for: - 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 of 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.
Advantages - Uses recycled raw materials.
- Layer thickness 6 to 120 mm.
- Sulphate resistant.
- Hand and machine application (wet spray technique).
- Easy to apply.
- Very low shrinkage.
- Dust reduced for a cleaner, healthier environment.
- Good resistance to sea water.
- Does not require a bonding primer.
- Can be safely used in contact with steel (very low chloride content).
- Low permeability.
- EuroClass A1 reaction to fire rating.
- Class R4 of EN 1504-3.
- Resistant to sulfuric acid attack (exposure classes XWW1 and XWW3).
- Drinking Water Certified.
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Technical Information Abrasion Resistance Wear Resistance Böhme, wet procedure | < 12 cm3/50 cm2 |
Compressive Strength | Time | Compressive strength | | 1 day | ~19 MPa | | 7 days | ~43 MPa | | 28 days | ~56 MPa |
Modulus of Elasticity in Compression
Flexural Strength | Time | Tensile strength in flexure | | 1 day | ~4.4 MPa | | 7 days | ~7.0 MPa | | 28 days | ~8.0 MPa |
Tensile adhesion strength
Shrinkage ~500 μm/m (+20 °C / 65 % relative humidity at 28 days) | (EN 12617-4) |
Restrained Shrinkage / Expansion
Electrical Resistivity | ~32 kΩ·cm at 100% relative humidity @ 20°C | (ISO 12696) |
Thermal Compatibility ≥ 2.0 MPa (Part 1 - Freeze-Thaw) | (EN 13687-1) |
Capillary Absorption ≤ 0.5 kg∙m-2·h-0.5 | (EN 13057) |
Water Penetration under Pressure
Chloride Ion Diffusion Resistance | Low: < 2000 coulombs | (ASTM C 1202) |
| Chloride diffusion coefficient: 4.8 x 10-12 m2/s | (EN 12390-11) |
Carbonation Resistance | dk ≤ control concrete MC (0.45) | (EN 13295) |
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Application Information Fresh mortar density ~2.1 kg/L Layer Thickness | Orientation | Minimum | Maximum | | Horizontal | 6 mm | 120 mm | | Vertical | 6 mm | ~85 mm (~120 mm in localised areas) | | Overhead | 6 mm | ~30 mm (~50 mm in localised areas) |
Product Temperature Maximum | +30 °C | Minimum | +5 °C |
Ambient Air Temperature Maximum | +30 °C | Minimum | +5 °C |
Mixing Ratio 3.75 to 3.9 L of water for a 25 kg bag Substrate Temperature Maximum | +30 °C | Minimum | +5 °C |
Pot Life ~60 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.
