SikaGrout®-3350
SikaGrout®-3350 is a 1-part, cementitious, fast hardening, free flowing grout which is shrinkage compensated and achieves ultra-high early and final strengths. Specifically designed for onshore steel and precast concrete wind towers.
- Application thickness: 20–500 mm.
- Fast early strength development, even at low temperatures.
- Ultra-high final strength >120 N/mm2.
- Very low shrinkage.
- Fatigue certified.
- Good flowability.
- High adhesion to concrete.
- Ready to use (just add water).
- Suitable for pumping long distances.
Usage
SikaGrout®-3350 may only be used by experienced professionals.- Ultra-high performance precision grouting of joints.
- Filling horizontal joints between tower bases and foundations.
- Horizontal joints between precast concrete elements.
Advantages
- Application thickness: 20–500 mm.
- Fast early strength development, even at low temperatures.
- Ultra-high final strength >120 N/mm2.
- Very low shrinkage.
- Fatigue certified.
- Good flowability.
- High adhesion to concrete.
- Ready to use (just add water).
- Suitable for pumping long distances.
Packaging
25 kg and 500 kg bags.
Refer to current price list for packaging variations.
Colour
Light grey powder
Product Details
APPROVALS / STANDARDS
- Fatigue Resistance SikaGrout®-3350, Applus, Certificate No. 19/32301074-S.
Product Declaration
EN 1504-6: Anchoring of reinforcing steel bar.
EN 1504-3: Structural and non-structural repair product for concrete.
Shelf Life
12 months from date of production
Storage Conditions
Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +35 °C. Always refer to packaging.
Maximum Grain Size
Dmax: ~3 mm
Compressive Strength
| Time | Compressive strength |
| 1 day | ~65 N/mm2 |
| 3 days | ~90 N/mm2 |
| 7 days | ~100 N/mm2 |
| 28 days | ~120 N/mm2 |
| Compressive Strength Class | >C100/115 |
| Characteristic Compressive Strength at 28 days | >120 N/mm2 (150 x 300 mm cylinders) |
Early strength: ≥40 N/mm2 after 24 hours (class A), according Guideline DAfStb.
| Air and Concrete Temperature | Time | Compressive strength |
| +5 °C | 24 hours | >3 N/mm2 |
| For concrete exposure classes: X0, XC 1-4, XD 1-3, XS 1-3, XF 1-4, XA 1-2/WA. | (DIN EN 206-1/ DIN 1045-2) |
Modulus of Elasticity in Compression
| ~56'000 N/mm2 | (EN 13412) |
Flexural Strength
| Time | Strength |
| 1 day | ~10 N/mm2 |
| 28 days | ~20 N/mm2 |
Tensile adhesion strength
| > 2,0 N/mm2 | (EN 1542) |
Shrinkage
< 0,25 mm/m
Shrinkage Class SVKM 0 according to DAfStb Guideline
Expansion
> 0,1 % volume after 24 hours. Max 2 %
Application
Mixing Ratio
6,5–8,0 %
1,63–2,0 Litres of water for 25 kg of powder
32,5–40,0 Litres of water for 500 kg of powder
Fresh mortar density
~2,5 kg/l
Layer Thickness
20 mm minimum / 500 mm maximum
Flowability
| a3 (≥ 700 mm diameter) | (DAfStb 2011) |
Ambient Air Temperature
+5 °C minimum / +35 °C maximum
Substrate Temperature
+5 °C minimum / +35 °C maximum
Pot Life
~180 minutes at +20 °C
Yield
25 kg of powder yields ~10,70 Litres of grout
MIXING
Drill and Spiral Mixer
Pour the correct amount of water into a suitable clean mixing container. Stir slowly with an electric single or double mixer (200–500 rpm) and spiral paddle then add the complete bag of powder into the water. Mix continuously for 5 minutes to achieve a uniform and lump free smooth consistency. Do not add more water than the maximum specified.
Grout mixer
SikaGrout®-3350 must be mixed using suitable grout mixing equipment combined with agitator for continuous large volume mixing. Volume capacity of equipment must be applicable to the volume of material being mixed for a continuous operation. Equipment trials must be considered to ensure product can be mixed satisfactory before full project application.
Pour the first bag and add the minimum water ratio in the correct proportion into the grout mixer. Mix for around 1 minute. While stirring the mix, slowly add the rest of the powder. Add more water within the mixing time up to the maximum allowed until the desired consistency is achieved.
Mix continuously for a minimum of 4 minutes more. For larger mixes the mixing time must be extended to approximately 6 minutes or as necessary until the grout achieves a lump free smooth consistency. Do not add more water than the maximum specified.
Note: Do NOT use continuous mixing equipment.
APPLICATION
Strictly follow installation procedures as defined in method statements, application manuals and working instructions which must always be adjusted to the actual site conditions.
Pre-wetting
The prepared concrete substrate must be thoroughly saturated with clean water for a recommended 12 hours before application of the grout. The surface must not be allowed to dry within this time. Prior to application of the grout, all water must be removed from within formwork, cavities or pockets and the final surface must achieve a dark matt appearance (saturated surface dry) without glistening.
Placing: Grout pump application
For large volume placement, grout pumps are recommended. Equipment trials must be considered to ensure product can be pumped satisfactory.
Surface finishing
Finish exposed grout surfaces to the required surface texture as soon as the grout has started to stiffen. Do not add additional water on the surface. Do not overwork the surface as this may cause surface discolouration and cracking. After the grout has initially hardened, remove formwork and trim edges while concrete is ‘green’.
Cold weather working
Consider storing bags in a warm environment and using warm water to assist with achieving strength gain and maintaining physical properties.
Hot weather working
Consider storing bags in a cool environment and using cold water to assist with controlling the exothermic reaction to reduce cracking and maintaining physical properties.
CURING TREATMENT
Protect exposed grout surfaces after finishing (immediately after levelling) from premature drying and cracking by curing under water for at least 72 hours. In cold weather apply insulated blankets to maintain a constant temperature to prevent surface damage from freezing and frost.
CLEANING OF TOOLS
Clean all tools and application equipment with water immediately after use. Hardened material can only be mechanically removed.