One-Part, Class R4, Multi-Purpose, Cementitious Concrete Repair Mortar Sika MonoTop-4200 Multi Use is a cementitious, one-part, Class R4, multi-consistency (controlled by water addition), hand applied, pourable or machine applied, structural, sulphate resistant concrete repair mortar with high initial and final strengths. Suitable for repairing all types of reinforced concrete buildings, civil engineering and marine structures in all orientations (i.e. horizontal, vertical and overhead). Layer thickness up to 80 mm (pourable up to 60 mm). - High early and final compressive strengths.
- Sulphate resistant.
- Good adhesion to concrete, mortar, stone and brick substrates.
- Good abrasion resistance.
- Very low shrinkage.
- Good surface finishing.
- Ready to mix with water.
- Excellent workability.
- Applied manually or mechanically (wet spray).
- High pH passivates steel reinforcement.
- Contains very low chlorides and is devoid of other corrosion promoting additives.
- Can be used for all orientations, removing the need for multiple products.
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Usage Sika MonoTop-4200 Multi Use may only be used by experienced professionals. - Repair of spalling and damaged concrete in infrastructure and superstructure works. Restoration work (Principle 3, method 3.1, 3.2 and 3.3 of EN 1504-9).
- Increasing the bearing capacity of the concrete structure by adding mortar. Structural strengthening (Principle 4, method 4.4 of EN 1504-9).
- Increasing cover with additional mortar and replacing contaminated or carbonated concrete. Preserving or restoring passivity (Principle 7, method 7.1 and 7.2 of EN 1504-9).
- Repairs to reinforced concrete structures requiring a Class R4, R3, R2, R1 mortar.
- Horizontal, vertical and overhead repairs.
Advantages - High early and final compressive strengths.
- Sulphate resistant.
- Good adhesion to concrete, mortar, stone and brick substrates.
- Good abrasion resistance.
- Very low shrinkage.
- Good surface finishing.
- Ready to mix with water.
- Excellent workability.
- Applied manually or mechanically (wet spray).
- High pH passivates steel reinforcement.
- Contains very low chlorides and is devoid of other corrosion promoting additives.
- Can be used for all orientations, removing the need for multiple products.
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Technical Information Compressive Strength | | 1 Day | 7 Days | 28 Days | | Hand Applied and Wet Spray | ~30 N/mm2 | ~50 N/mm2 | ~60 N/mm2 | | Pourable | ~25 N/mm2 | ~45 N/mm2 | ~50 N/mm2 |
Modulus of Elasticity in Compression
Flexural Strength | | 1 Day | 7 Days | 28 Days | | Hand Applied and Wet Spray | ~7 N/mm2 | ~10 N/mm2 | ~11 N/mm2 | | Pourable | ~5 N/mm2 | ~7 N/mm2 | ~9 N/mm2 |
Tensile adhesion strength
Restrained Shrinkage / Expansion
Capillary Absorption | ≤0.5 kg·m-2·h-0.5 | (EN 13057) |
Carbonation Resistance | Pass: dk ≤ control concrete MC (0.45) | (EN 13295) |
Reaction to Fire | EuroClass A1 | (EN 13501-1) |
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Application Information Mixing Ratio Hand applied and wet spray: 3.5 to 3.7 litres of water for 25 kg powder. Pourable: 4.4 to 4.6 litres of water for 25 kg powder. Fresh mortar density ~2.1 kg/l Layer Thickness | Consistency | Minimum Layer Thickness | Maximum Layer Thickness | | Hand applied and wet spray | 5 mm | 80 mm | | Pourable | 5 mm | 60 mm |
Consistency | Hand applied and wet spray | w/c: ~14 % | | Pourable | w/c: ~17.5 % |
Ambient Air Temperature +5 oC minimum / +30 oC maximum Substrate Temperature +5 oC minimum / +30 oC maximum Pot Life ~30 to 45 minutes at +20 oC |
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.
