SikaGrout®-340+

• Significantly reduced carbon footprint (compared to average cement-based grouts).

• Increased health and safety during application.

• Meets LEED v4 requirements.

• CE Marking and Declaration of Performance to EN 1504-6 - Anchoring of reinforcing steel bar

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

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. 

~3 mm

All data determined at +20 °C with a mixing ratio of 12 % water.

All data determined at +20 °C with a mixing ratio of 12 % water.

-30 °C to +80 °C

~2,3 kg/l

10 to 500 mm

+5 °C to + 35 °C

2.8 – 3.2 litres water per 25 kg bag.

+5 °C to + 35 °C

~90 min (at +20 °C)

~180 min (at +20 °C)

~220 min (at +20 °C)

Earliest removal of formwork after ~12 hours (at +20 °C).

Earliest operation of grouted machinery after ~24 hours (at +20 °C).

Approx. 2,000 kg powder is needed to prepare 1 m³ of fresh mortar. 25 kg of powder will yield approximately 12.1 litres of mortar.

Concrete

The 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 sound concrete must be re­moved by suitable mechanical preparation as directed by the engineer or supervising officer. Any pockets or holes for structural fixings must also be cleaned of all debris.

Shutter Formwork

Where formwork is to be used, all formwork 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. As a guide leave a gap of ap­proximately 15 cm on one side and 5 cm on the oppos­ite side. A header box or hopper should be constructed on one side of the formwork, so that a grout head of 150 to 200 mm can be maintained during the grouting operation.

Drill and Spiral Mixer (for small mortar quantities)

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 / Forced action mixer (for large mortar quantities)

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 mortar is still ‘green’.

Cold weather working

Consider using warm water for mixing to assist with achieving strength gain and maintaining physical properties.

Hot weather working

Keep bags cool and use cold water for mixing to avoid the pot life of the mixed grout becoming too short.

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 removed mechanically.