SikaGrout®-340

• CE Marking and Declaration of Performance to EN 1504-6 - Anchoring of reinforcing steel bar
• CE Marking adn Declaration of Performance to EN 1504-3 - Structural and non-structural repair product for concrete for use in buildings and civil engineering works

Special cement, selected aggregates and additives

6 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 +30 °C. Always refer to packaging.

D_max: ~3 mm

At +20 °C with a water mixing ratio of 12 %.

At +20 °C with a water mixing ratio of 12 %

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

2,8–3,25 litres water per 25 kg bag

~2,3 kg/l

10 mm min./ 300 mm max.

+5 °C min/ +35 °C max

+5 °C min/ +35 °C max

~90 minutes at +20 °C

25 kg of powder yields approximately 12,1 litres of mortar

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 maximum specified.

Grout mixer

SikaGrout®-340 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.

Pour the minimum water ratio in the correct proportion 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 maximum allowed until the desired consistency is achieved.

Mix continuously for a minimum of 3 minutes. For larger mixes the mixing time must be extended to approximately 5 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.

Reference must be made to further documentation where applicable, such as relevant method statement, application manual and installation or working instructions.

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 pour or pump 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 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 using warm water to assist with achieving strength gain and maintaining physical properties.

Protect the fresh material from premature drying and cracking using an appropriate curing method e.g. curing compound, moist geo-textile membrane, hessian, polythene sheet etc. 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 and cured material can only be mechanically removed.