Sika MonoTop®-4012

• Conformity with LEED v4 MRc 2 (Option 1): Building Product Disclosure and Optimization – Environmental Product Declarations
• Conformity with LEED v4 MRc 3 (Option 2): Building Product Disclosure and Optimization - Sourcing of Raw Materials
• Conformity with LEED v4 MRc 4 (Option 2): Building Product Disclosure and Optimization - Material Ingredients
• IBU Environmental Product Declaration (EPD)

• CE Marking and Declaration of Performance to EN 1504-3 - Concrete repair product for structural repair

Sulphate resistant and replacement cement, selected aggregates and additives

12 months from date of production

The product must be stored in original, unopened and undamaged packaging in dry conditions at temperatures between +5 °C and +35 °C. Always refer to packaging.

D_max: 2 mm

Bonding primer/ Reinforcement corrosion protection

Concrete repair mortar

Levelling mortar

Class R4

3,75 to 3,9 L of water for 25 kg bag

~2,1 kg/l

+5 °C min. / +30 °C max.

+5 °C min. / +30 °C max.

~60 minutes at +20 °C

~2,10 kg/m²/mm

This figure is theoretical and does not allow for any additional material due to surface porosity, surface profile, variations in level, wastage or any other variations. Apply product to a test area to calculate the exact consumption for the specific substrate conditions and proposed application equipment.

25 kg of powder yields ~13,7 L of mortar

Select the most appropriate equipment required for the project:

Substrate preparation equipment

• Mechanical hand-held tools
• High / ultra-high pressure water blasting equipment

Steel reinforcement equipment

• Abrasive blast cleaning equipment
• High pressure water blasting equipment

Mixing equipment

• Mixing Container.
• Small quantities: low speed electric single or double paddle mixer (< 500 rpm).
• Large quantities: Forced action mixer

Application equipment

• Hand applied: Plasterers hawk, trowel
• Wet Spray: All in one mixing and spraying machine or separate spraying machine and all associated ancillary equipment to suit application volumes

Finishing equipment

• Trowel (PVC or wooden)
• Sponge

Also refer to Site Handbook ‘Repair of Concrete Structures – Patch Repair and Spray Applications’

Hand applied and wet spray application

1. Pour the minimum recommended clean water quantity into a mixing container / equipment.
2. While stirring slowly, add the powder to the water.
3. Mix thoroughly for at least for 3 minutes adding additional water if necessary, to the maximum specified amount.
4. Adjust to the required consistency to achieve a smooth consistent mix.
5. Check the consistency after every mix.

Strictly follow installation procedures as defined in method statements, application manuals and working instructions which must always be adjusted to the actual site conditions.

Reinforcement corrosion protection coating

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

Bonding primer

Note: On a well prepared and roughened substrate or for a sprayed application, a bonding primer is generally not required.

Note: When a bonding primer is required to achieve the required adhesion values, use Sika MonoTop®-1010 or SikaTop® Armatec® 110 EpoCem® (Refer to individual Product Data Sheets).

Repair Mortar

Manual application

IMPORTANT

The final pre-wetted surface must achieve a dark matt appearance (saturated surface dry).

IMPORTANT

To prevent sagging or slumping of ‘built up’ repair mortar layers. Allow each layer to slightly harden and remain wet before applying subsequent layers.

1. Thoroughly pre-wet the prepared substrate (2 hours recommended) before application.
2. Keep the surface wet and do not allow to dry.
3. Remove excess water from within the surface pores and cavities e.g. with a clean sponge.
4. Make a scratch coat using the repair mortar.
5. Apply the scratch coat over the complete substrate surface to form a thin layer to fill surface pores or cavities.
6. Apply the repair mortar onto the scratch coat ‘wet on wet’ at the minimum and maximum layer thicknesses without the formation of voids.

Sprayed application - Wet Spray

IMPORTANT

The final pre-wetted surface must achieve a dark matt appearance (saturated surface dry).

IMPORTANT

To prevent sagging or slumping of ‘built up’ repair mortar layers. Allow each layer to slightly harden and remain wet before applying subsequent layers.

1. Thoroughly pre-wet the prepared substrate (2 hours recommended) before application.
2. Keep the surface wet and do not allow to dry.
3. Remove excess water from within the surface pores and cavities e.g. with a clean sponge.
4. Place the wet mixed Sika MonoTop®-4012 into the spraying equipment.
5. Spray the repair mortar onto the pre-wetted substrate between the minimum and maximum layer thicknesses without the formation of voids.

Surface finishing

IMPORTANT

Do not add water during the surface finishing as this can cause discolouration and cracking.

1. Allow mortar to surface harden.
2. Surface finish to the required surface texture using a stainless steel, steel, PVC or wooden float

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 fresh mortar immediately from premature drying using an appropriate curing method, e.g. curing compound, moist geotextile membrane, polythene sheet, etc.
• Curing compounds must not be used when they could adversely affect subsequently applied products and systems.

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