High Performance Class R4 Dry Sprayed Micro-Concrete for Large Volume Repairs Sikacrete-301 Premium (formerly SikaCem-133 S Gunite) is a cement based, polymer modified, one-component repair micro-concrete containing silica fume and high range water-reducing agents, meeting the requirements of EN 1504-3 Class R4. Formulated for machine applications using the dry process without set accelerators, repairs may be profiled and trowel finished easily where necessary. - One component, ready to use.
- Non-silica aggregates, so no risk of alkali silica reactivity (ASR).
- Easy and quick to set up.
- Low rebound losses and dust formation during the spraying process.
- High build - layer thicknesses in one application overhead up to 150mm are possible without any additional mesh reinforcement.
- Rapid strength gain without set accelerators.
- Very low shrinkage.
- Can be finished easily to a high standard.
- Overcoatable with Sika reprofiling / levelling / smoothing mortars and coatings.
- EN 1504-3 Class R4.
- Low resistivity - can be used with cathodic protection systems.
- Suitable for use in contact with potable water.
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Usage - Large volume repairs.
- Highways works.
- Bridges (columns, piers, sofits, beams, parapets, abutments, etc.).
- Marine structures (quays, piers, jetties, sea walls, docks, dry docks, marinas, offshore platforms, cofferdams, caissons, etc.).
- Water facilities (reservoirs, dams, tanks, buildings, treatment works, etc.).
- Tunnels.
- Faςades.
- For exterior and interior use.
- In place of Class R1, R2 and R3 mortars.
- Low resistivity - can be used with cathodic protection systems.
Advantages - One component, ready to use.
- Non-silica aggregates, so no risk of alkali silica reactivity (ASR).
- Easy and quick to set up.
- Low rebound losses and dust formation during the spraying process.
- High build - layer thicknesses in one application overhead up to 150mm are possible without any additional mesh reinforcement.
- Rapid strength gain without set accelerators.
- Very low shrinkage.
- Can be finished easily to a high standard.
- Overcoatable with Sika reprofiling / levelling / smoothing mortars and coatings.
- EN 1504-3 Class R4.
- Low resistivity - can be used with cathodic protection systems.
- Suitable for use in contact with potable water.
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Technical Information Compressive Strength | 1 Day | ~15 MPa | | 7 Days | ~35 MPa | | 14 Days | ~50 MPa | | 28 Days | ~60 MPa |
Modulus of Elasticity in Compression
Shear Strength µ = 60,000
Coefficient of Thermal Expansion 8 x 10-6 m/m oC
Capillary Absorption | 0.14 kg.m-2.h-0.5 | (EN 13057) |
Diffusion Resistance to Water Vapour µ = 1,000
Chloride Ion Diffusion Resistance 600 – 700 x 10-15 m2/s
Freeze Thaw De-Icing Salt Resistance 106% - good resistance with no visible change after 400 cycles. NOTE: Determined in accordance with SN 640461 - Resistivity factor WFT-L.
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Application Information Fresh mortar density ~2.2 kg/l Layer Thickness 10 mm minimum / 150 mm maximum Ambient Air Temperature +3°C minimum / +30°C maximum Substrate Temperature +3°C minimum / +30°C maximum |
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.
