Sika MonoTop-436 N - R4 High Performance Pourable Micro-Concrete Repair Mortar
Self-Compacting Repair Mortar for Concrete Restoration
Sika MonoTop-436 N is a 1-component, pre-bagged, pourable, self-compacting repair mortar meeting the requirements of class R4 of EN 1504-3. This micro-concrete offers very good flow properties and is designed for concrete restoration and structural strengthening.
Uses:
- Suitable for restoration work by recasting (Principle 3, method 3.2 of EN 1504-9). Repair of spalling and damaged concrete in buildings, bridges, infrastructure and superstructure works.
- Suitable for structural strengthening (principle 4, method 4.4 of EN 1504-9). Increasing the bearing capacity of the concrete structure by adding mortar.
- Suitable for 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.
- Repair of concrete on buildings and civil engineering structures for areas including Beams, Balconies, Columns, Stairs, Decks, Walls etc.
Characteristics and Advantages:
- Class R4 of EN 1504-3
- Very good flow properties
- Self compacting micro-concrete
- Placed from 20mm to 300mm in one pour
- Chloride Free
- Carbonation Resistant
- Excellent adhesion to host Concrete
- Low water and chloride permeability
- Low shrinkage
- Finished surface can be painted after formwork is removed
- Compatible with Sika FerroGard Sacrificial Anode System
Product Information:
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Composition: Portland cement, selected aggregates and special additives
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Packaging: 20 kg bags
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Appearance and colour: Grey powder
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Maximum grain size: Dmax: 4.0 mm
Application Information:
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Mixing ratio: 2.5 to 2.7 litres of water for 20 kg powder
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Yield: 20 kg of powder yields approximately 9.8 litres of mortar
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Layer thickness: 20mm min. / 300 mm max.
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Flowability: > 600mm (Flow trough)
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Pot Life (at +20°C): ~ 40 minutes
Application Instructions:
Substrate Quality / Pre-treatment: Concrete shall be free from dust, loose material, surface contamination. Steel reinforcement surface must be free from rust products, mill scale, etc., cleaned to Sa 2 (ISO 8501). Formwork must be adequate strength, non-absorbent, treated with release agent and sealed.
Mixing: Mix Sika MonoTop-436 N with a low speed mixer (~500 rpm) for 3 minutes, adding water gradually to achieve a homogeneous, lump-free consistency. Use the correct water dosage (2.5 - 2.7 L per 20 kg bag).
Application: Pre-wet the substrate (SSD condition). Apply reinforcement corrosion protection if required (Sika MonoTop-910 N or SikaTop 110 EpoCem). Pour the mixed mortar directly into the formwork. Avoid using vibrators. Cure for a minimum of 7 days using a curing membrane or polythene sheeting.
Cleaning of Equipment: Clean tools with water immediately after use. Hardened material can only be removed mechanically.
Ready to purchase? Pick up from our store, Sika Wetherill Park in Sydney, or any Sika warehouse nationwide. We also offer convenient online ordering with delivery across Australia.
Colour Accuracy Disclaimer: We have taken care to display the most accurate visuals of our products. However, we are not responsible for the colour accuracy of the device you are viewing our swatches on. These variations arise due to different computer monitors and devices (make, model and technology, as well as resolution, contrast and brightness control settings) in much the same way a scan will differ from an original image and a colour photocopy. Furthermore, coatings can exhibit variation in perceived colour depending on gloss level and application method. If you require a very specific colour match, please make your selection via actual swatches and colour boards available at our showroom.
Product Disclaimer: Ensure you read all product, technical and safety data sheets prior to application as liability falls on the applicator. All products must be applied in accordance with manufacturer’s recommended method.
