SikaGrout®-3200 VN

Available internal & external test reports 

6 months from the date of production if stored properly

The product must be stored properly in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5°C and +30°C. Always refer to packaging.

~11.5 %
~2.875 l of water for 25 kg of powder

~2.3 kg/l

10 mm min./ 150 mm max.

+5°C min. / +35°C max.

+5°C min. / +35°C max.

~60 minutes at +20°C

25 kg of powder yields ~12.1 litres of grout

Concrete
Concrete must be structurally sound, thoroughly clean, free from oil, grease, dust, loose material, surface contamination and materials which will impair the grout flow or reduce adhesion strength. Laitance, delaminated, weak, damaged and deteriorated concrete and where necessary unsound concrete must be removed by suitable mechanical preparation as directed by the engineer or supervising officer. Any pockets or holes for structural fixings should also be cleaned of all debris.
 

Shutter Formwork

Where formwork is to be used, it must be of adequate strength, treated with release agent and sealed to prevent leakage of pre-wetting water and grout. Ensure formwork includes outlets for removal of the pre-soaking water if vacuum extraction equipment to remove water will not be used.
For manual grout application, a header box or hopper should be constructed on one side of the formwork so that a grout head of 150–200 mm can be maintained during the grouting operation.

Note: pumping method is recommended.

Drill and Spiral Mixer
Pour the correct amount of water into a suitable clean mixing container. While stirring slowly with drill and spiral mixer (200–500 rpm), add the complete bag of powder into the water. Mix continuously for 3 minutes to achieve a uniform and lump free smooth consistency. Do not add more water than the specified. Wait for 1-2 minutes to allow the entrapped air to escape and then mix again for 2 more minutes.

Grout Mixer

SikaGrout®-3200 VN must be mixed using suitable grout mixing equipment combined with agitator for continuous large volume mixing. Volume capacity of equipment should be applicable to the volume of material being mixed for a continuous operation. Equipment trials should be considered to ensure product can be mixed satisfactory.

Pour about 90% of the specified water amount into the grout mixer. While stirring the water, slowly add the powder to the water. Add more water within the mixing time up to the specified allowed until the desired consistency is achieved. Mix continuously for a minimum of 3 minutes. For larger mixes the mixing time can be extended until the grout achieves a lump free smooth consistency. Do not add more water than the specified amount.

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
Apply the material shortly after mixing to take advantage of the expansion properties. Immediately after mixing for manual application, pour the mixed grout into the header box or hopper ensuring continuous grout flow during the complete grouting operation to avoid trapping air.
For large volume placement, grout pumps are recommended.
Equipment trials should 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’.
Control of heat
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 from premature drying and cracking using appropriate curing methods such as curing compound, moist geo-textile membrane, hessian, polythene sheet.

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