SikaGrout®-9140

• Tests on fresh and hardened grouting mortar - verification by MPA Hannover

• Certification of conformity according to the “DAfStb Richtlinie – Herstellung und Verwendung von zementgebundenem Vergussbeton und Vergussmörtel“ (QDB)

12 months from date of production

Product must be stored in original, unopened and undamaged sealed packaging in dry conditions away from direct sunlight and heat, not exceeding 40 ^oC. When stored under high temperature and high humidity conditions, the shelf life may be reduced.

75 mm and 50 mm cubes

150 x 300 mm cylinder

Exposure classes

Classification according to DAfStb Richtlinie

Poisson's ratio:

Classification according to DAfStb Ricthlinie

Autogenous shrinkage

7.5 - 9.2 % water / powder ratio

25 - 600 mm

0 °C min. / +35 °C max.

0 °C min. / +35 °C max.

0 °C min. / +35 °C max.

3 hours

Classification according to DAfStb Rictlinie

Approximately 440 liters per ton material

• SikaGrout®-9140 has been especially formulated for use in specific applications. As such SikaGrout®-9140 should be installed by experienced fully trained contractors. Full application procedures are available on request.

• Sands or other products that could affect the products properties must not be added.

• SikaGrout®-9140 which will be exposed to strong drying conditions, e.g. mortar which is directly exposed to heavy wind and/or direct sunlight, should be protected using appropriate curing agents.

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 or use vacuum extraction equipment to remove water.

SikaGrout^®-9140 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. Put most of the water required in the mixer and add slowly the grout material. Mix until a homogeneous mortar (3 to 4 minutes), add the remaining water and continue mixing for at least another 2 minutes until the required fluid or flowable consistency is obtained. Mix with potable water only. 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 discoloration 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

Tools and spillages can be cleaned with water while SikaGrout®-9140 is still uncured. Once hardened, the material can only be removed mechanically.