Sika MonoTop®-3400 Abraroc

• CE Marking and Declaration of Performance to EN 1504-3 - Concrete repair product for structural repair.
• CE Marking and Declaration of Performance to EN 13813 - Cementitious screed material for use internally in buildings. 
• Guideline Maintenance of Accesible Sewers TED Directive 1, LPM report A-33609-1, 18.08.2009.

EN 1504-3: Class R4. EN 13813: - Cementitious screed material for use internally in buildings.

Sulphate resistant cement, fibres, additives and selected abrasive resistant aggregates.

12 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 +35 °C. Always refer to packaging.

D_max: 2,6 mm

Bonding Primer

SikaTop® Armatec®-110 EpoCem® for green concrete. Applied wet on wet.

Sikadur®-32+ for existing concrete (28 days)

Concrete Repair Mortar

Sika MonoTop®-3400 Abraroc

1  Compagnie Nationale du Rhône test method for wet abrasion

2,75 litres of water for 25 kg powder.

~2,25 kg/l

10 mm minimum / 50 mm maximum

+5 °C minimum / +30 °C maximum

+5 °C minimum / +30 °C maximum

+5 °C minimum / +30 °C maximum

Minimum 24 hours at 20 °C.

This depends on the substrate roughness and thickness of layer applied.

As a guide, ~21 kg of powder per m² per cm of layer thickness.

25 kg of powder yields approximately 12,3 litres of mortar.

Hand Application

Sika MonoTop®-3400 Abraroc can be mixed with a low speed (<500 rpm) hand drill mixer, or for machine application, using a force action mixer with 2 to 3 bags or more at once, depending on the type and size of mixer. For small quantities, the Product can be manually mixed.

Pour the minimum recommended water in a suitable mixing container. While stirring slowly, add the powder to the water and mix thoroughly for at least for 3 minutes adding additional water if necessary to the maximum specified amount, and adjust to the required consistency. The consistency must be checked after every mix.

Dry Spray Application

The amount of water added to the Sika MonoTop®-3400 Abraroc is controlled by the nozzleman at the nozzle.

Reinforcement Corrosion Protection Coating

Where a reinforcement coating is required, apply to the whole exposed circumference Sika MonoTop®-1010 or SikaTop® Armatec® 110 EpoCem® (refer to Product Data Sheets).

Bonding Primer

For dry sprayed application, a bonding primer is generally not required. For manual application over green concrete, use SikaTop® Armatec® 110 EpoCem® using the 'wet on wet' process. Over a well prepared and roughened 28 days concrete use Sikadur®-32+.

Hand Application:

Thoroughly pre-wet the prepared substrate (2 hours recommended) before application. Keep the surface wet and do not allow to dry. Before application, remove excess water (e.g. with a clean sponge). The surface shall have a dark matt appearance without glistening, and surface pores and cavities shall not contain water.

When manually applying by hand, apply bonding primer. Ensure the whole surface to be repaired is covered by the suitable primer. The repair mortar shall be applied onto the wet scratch coat between the minimum and maximum layer thicknesses without the formation of voids. Where layers are to be built up, to prevent sagging or slumping, each layer should be allowed to stiffen before applying subsequent layers 'wet on wet'.

Sprayed Application - Dry Spray:

The dry Sika MonoTop®-3400 Abraroc  shall be placed into the spraying equipment. The amount of water added is controlled by the nozzleman and should be sufficient to prevent dust and slumping. Apply onto the pre-wetted substrate. Spray between the minimum and maximum layer thicknesses without the formation of voids. Where layers are to be built up, to prevent sagging or slumping, each layer should be allowed to stiffen before applying subsequent layers 'wet on wet'. Rebound will be increased with a dry mixture and thin layers.

Finishing

After one hour, the mortar surface can be finished with a damp sponge. This removes any entrained air pores and further compacts the surface. This also creates a rough sand-paper like texture. A smooth finish can be obtained by finally smoothing the surface with a suitable trowel or flat spreading brush.

If the product is spray applied, finishing of the surface with a trowel can be carried out immediately after spraying.

Protect fresh mortar immediately from premature drying using an appropriate curing method (e.g. curing compound, moist geotextile membrane, polythene sheet, etc.). 

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