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Fosroc Renderoc DSR is a polymer modified, fibre reinforced, low rebound, rapid setting dry spray repair mortar designed for concrete repairs to buildings, bridges, tunnels and marine structures such as culverts. Complies with class R4 according to BS EN 1504-3 Class R4.
- Suitable for both isolated and large area repairs to beams, columns and panels, and can be used as wide scale overlay system to increase cover to the reinforcement
- Rapid setting and rapid early strength gain characteristics make it ideal for possession works where a fast turnaround is required
- Price on application - enquire with our team on 0113 2455450 or send a message to [email protected]
This product is a rapid setting version of Renderoc DS.
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Features & Benefits
- Supplied as aready to use blend of dry powders which is formulated for application using the dry spray process
- Based on Portland cements, graded aggregates, silica fume, chemical additives and polymer modifiers, providing a spray mortar with low rebound and good handling characteristics
- Low water requirement ensures good strength gain and long term durability
- Low rebound
- Can be applied at 3°C and above
- Rapid early strength gain
- High resistance to carbon dioxide
- Excellent bond to concrete
- Available in 25KG bags
- Single application up to 200mm vertically and 140mm overhead can be achieved. Thicker sections can be applied in multiple layers
Application Notes
- Extra protection to the reinforcing steel can be achieved by application of one full coat of Nitoprime Zincrich Plus prior to application
- Exposed steel reinforcing bars should be firmly secured to avoid movement during the application process as this will affect mortar compaction, build and bond. Additional reinforcement can be fixed using a suitable Lokfix product
- The product should be emptied from the bags directly into the hopper of the dry spray process machine
- Wooden, steel or plastic floats, or damp sponges may be used to achieve the desired surface texture
- Should not be applied at an air / substrate temperature of 3°C and falling. At a static 3°C, or 3°C and rising, application may proceed
- At ambient temperatures above 35°C, the material should be stored in the shade
- In common with all cementitious materials, Renderoc DSR must be cured immediately after finishing in accordance with good concrete practice, i.e. using Concure WB, Fosroc Cure B, wet hessian or polythene.
- If the finished surface is to be overcoated then Nitobond AR should be used in lieu of Concure WB and Cure B
- Renderoc DS should be removed from tools, equipment and mixers with clean water immediately after use. Cured material can only be removed mechanically
- Approx. 12.5 litres / 25 kg bag (approx. 80 bags/m³)
Note: The actual yield per bag will depend on the water addition during application. The coverage figures are theoretical — due to wastage factors and the variety and nature of possible substrates, practical coverage figures will be reduced.
Limitations
- Should not be used when the temperature is 3°C and falling
- Should not be exposed to moving water during application
- Exposure to heavy rainfall prior to the final set may result in surface scour
- Non-flammable
Data sheet
- Manufacturer
- Fosroc
- For Use By
- Professional Use
- For Use On
- Concrete
- Minimum Applied Thickness
- 10mm
- Maximum Applied Thickness
- Overhead: Up to 140mm per layer
Vertical: Up to 200mm per layer - Coverage
- Approx. 12.5 litres / 25 kg bag (approx. 80 bags/m³)
- Recommended Thinner/Cleaner
- Water
- Compressive Strength (at 20°C)
- 7-10 MPa @ 3 hrs
15 MPa @ 1 day
40 MPa @ 7 days
50 MPa @ 28 days - Max. Application Temperature
- 35°C
- Min. Application Temperature
- 3°C
- Shelf Life (from date of manufacture)
- 12 months
- Resistance to chemicals
- The low permeability of Renderoc DSR retards chemical attack in aggressive environments. The cured mortar restricts permeation of acid gases, waterborne chloride ions and oxygen.
- Suitable For Use On
- Concrete
- Application Method
- Spray
- Manufacturer
- Fosroc
- Usages
- Cementitious Repair Systems
- Product Usage Type
- Mortar
- Product Range
- Renderoc
Questions
Question about the product
Ian Fawcus on 2024-03-28 11:16:59 | Question:
What material are the fibres in this product? |
Answer from Rawlins’ Technical Team:
The fibres are Polypropylene which help in preventing crack formation and improve fire rating performance. | |
IMPORTANT SHIPPING & DELIVERY INFORMATION
Fosroc Renderoc DSR is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
All delivery costs below are excluding VAT
Fosroc Concure WB
Fosroc Concure WB is a water based concrete curing compound based on a low viscosity wax emulsion. For use as a spray applied membrane to retain moisture in concrete for effective curing. Suitable for all general concreting applications and of particular benefit for large area concrete surfaces, such as airport runways, roads and...
Fosroc Cure B
Fosroc Cure B is a spray on temporary curing membrane to retain moisture in freshly placed concrete. Ideal for use as a spray applied membrane to retain moisture in concrete for effective curing Suitable for all general concreting applications and of particular benefit for large area concrete surfaces, such as airport runways, roads and...
Fosroc Nitobond AR
Fosroc Nitobond AR is a single component polymer emulsion and recommended primer for the Renderoc cementitious repair systems. Nitobond AR can be used as a curing membrane and also a concrete surface sealer in non-traffic areas May also be used as an economical dust proofer and surface sealer for non-trafficked cementitious surfaces...
Fosroc Nitoprime Zincrich Plus
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