SikaGrout®-3350

• Fatigue Resistance SikaGrout®-3350, Applus, Certificate No. 19/32301074-S

12 months from date of production

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.

D_max: ~3 mm

Early strength: ≥ 40 MPa after 24 hours (class A), according Guideline DAfStb

< 0,25 mm/m

Shrinkage class SVKM 0 according to DAfStb Guideline

> 0,1 % volume after 24 hours. Max 2 %

6.5–8,0 %

1,63–2,0 L of water for 25 kg of powder

32,5–40,0 L of water for 500 kg of powder

~2,5 kg/l

20 mm min. / 500 mm max.

+5 °C min. to +35 °C max.

+5 °C min. to +35 °C max.

~180 minutes at +20 °C

25 kg of powder yields ~10,70 L of grout

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.

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 over work 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.

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.

Clean all tools and application equipment with water immediately after use. Hardened material can only be mechanically removed.