SikaGrout®-212 RU

• Certificate of conformity № РОСС RU.АГ81Н05752
• Fire Safety Certificate №ПС 002367

Cement, selected fillers and aggregates, special additives

12 months from date of production

Store properly in dry conditions in undamaged and unopened original sealed packaging

3 mm

~ 2.3 kg/l (density of fresh mortar)

F400

A1

2.9 to 3.1 l water per bag (25 kg)

10 mm min./ 60 mm max. per layer

+5 °C min./+30 °C max.

+5 °C min./+30 ° max.

45 minutes

This depends on the substrate roughness and thickness of layer applied. As a guide, ~2 kg of powder per 1 mm thickness per m²
 

12 l

SikaGrout®-212 RU can be mixed with a low speed (~500 r.p.m.) electric hand drill mixer with vertical axis for 1 to 2 bags taking care not to entrap air in the mix, or using a force action pan mixer for 2 to 3 bags - or more  at once, depending on the type and size of mix-er. Pour the water in the correct desired proportion into a suitable mixing container. While stirring slowly, add the powder gradually in the water and mix thoroughly at least for 3 minutes, adding additional water during the mixing time if necessary up to the maximum specified amount, until the required homogeneous and lump-free consistency is achieved. For larger mixes the mixing time could be extended (up to 5 minutes or as necessary) until the mortar is homogenously mixed with no lumps and no remaining dry powder. Mix full bags for best results. 25 kg of SikaGrout®-212 RU is mixed with 2.9 - 3.1 L of water depending on the required consistency.

SikaGrout®-212 RU can be applied manually using traditional techniques by pouring into the cavities or the formworks. If necessary, it can be mechanically pumped  by  means  of  standard  equipment  (e.g. Turbosol,  Putzmeister).  For  free  flowing  grout application, it is essential to provide a hydrostatic head of the grout. A feed hopper is recommended.

Pre-Wetting:

Concrete surfaces shall be saturated with clean water minimum 2 hours before application, ensuring that all pores and pits are adequately wet.  The surface shall not be allowed to dry before application of the grout. Just before application, remove excess water and ensure there is no standing water on the surface. The surface shall achieve a dark matt appearance without glistening and surface pores and pits shall not contain water (saturated surface dry - SSD). Use pressurised air (oil free) to blow away excess water in difficult to reach areas.

Pouring / Filling:

The product should be poured directly on the wet mat substrate or inside the formwork prepared for the casting. By using more than one mixer and with the proper organization, you can pour the fresh material reducing construction joints. After mixing SikaGrout®-212 RU, leave the grout to stand for ~1-2 minutes; stir again with a trowel and then pour immediately into sealed, rigid - stable prepared formworks. Ensure air displaced by the mortar can easily escape; otherwise entrapped air will prevent full contact grouting. To make optimum use of the product's expansion properties apply the grout as quickly as possible (within max. 15 minutes). Pot life shall also be taken into consideration, adjusting for climatic conditions, when planning the work duration. Pour the grout through the “mouth” of the formwork allowing the material to flow to the opposite end. Ensure that a continuous and sufficient head of pressure is maintained to keep the grout flowing to avoid air entrapment and prevent the material flow from coming to a stop before the operation is completed. Make sure air displaced by the material can easily escape. Never make an application from two places as it will be difficult to determine if all air has been released, and the entire void has been filled.

• Always check the material after pumping
• Ensure formwork is strong enough to hold the fresh mortar and sealed to prevent leakage
• Cure exposed surfaces immediately with protective sheet or membrane. Shield the fresh mortar from direct sun, wind and frost
• Finish exposed surface as desired as soon as the mortar has started to stiffen. Do not add additional water on surface
• Avoid the free fall of the material to prevent segregation of the aggregate

Bonding primer / Reinforcement Corrosion Protection:

On a well prepared and roughened substrate, a bonding primer is generally not required. Where a bonding primer and/or a reinforcement coating is required (eg. Sika MonoTop®-910 or SikaTop® Armatec®-110 EpoCem®) refer to  the relevant Product Data Sheet for more detailed information. In any case, the bonding primer/reinforcement corrosion protection shall be applied on a pre-wet substrate and subsequent application of SikaGrout®-212 RU shall be applied wet on wet. Open time of the bonding primer and/or the reinforcement corrosion protection shall be taken into account if it fulfills the application demands.

Protect the freshly applied mortar of SikaGrout®-212 RU from early dehydration and/or premature drying by using the relevant curing methods (at least for 24 hours), e.g.curing compound such as Sika® Antisol® or Sikafloor® Proseal once surface water has evaporated. Use suitable curing covers such as jute and water, plastic sheets or other suitable membranes.
 

Removal of fresh remnants from tools and application equipment can be carried out using water immediately after use. Hardened / cured material can only be mechanically removed.