• Environmental Product Declaration (EPD) in accordance with EN 15804. EPD independently verified by Institut für Bauen und Umwelt e.V. (IBU).

• Specific Environmental Product Declaration (EPD) in accordance with EN 15804. EPD independently verified by BRE Global.

• CE marking and declaration of performance based on EN 1504-3: Products and systems for the protection and repair of concrete structures — Structural and non-structural repair.

   

Complies with the general requirements of EN 1504-3: Class R3.

Sulphate resistant cement, selected aggregates, additives and polymers.

12 months from date of production.

The Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +35 °C. Protect the Product from direct sunlight. Always refer to packaging.

Refer to the current Safety Data Sheet for information on safe handling and storage.

D_max: 0.4 mm

Note: Other primers can be used. Contact Sika® Technical Services for further information.

~4.7 litres of water for 25 kg powder.

~2.0 kg/l

~50 minutes at +20 °C

~40 minutes at +20 °C

Minimum 24 hours at +20 °C.

As a guide, depending on weather conditions, overcoat 3 days after application (2 days curing + 1 day drying) with the Sikagard® range of protective coatings. For other emulsion paints, refer to the relevant manufacturer’s product information.

~1.7 kg/m²/mm

Note: Consumption data 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 approximately 14.85 litres of mortar.

Select the most appropriate equipment required for the project:

SUBSTRATE PREPARATION EQUIPMENT

• Mechanical handheld tools.

• High or ultra-high pressure water blasting equipment.

STEEL REINFORCEMENT EQUIPMENT

• Abrasive blast cleaning equipment.

• High pressure water blasting equipment.

MIXING EQUIPMENT

• Clean mixing containers.

• 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’.

CONCRETE

1. Clean the substrate thoroughly so it is free from dust, loose material, surface contamination and material which reduces adhesion, prevents suction or wetting by the repair materials.
2. Remove delaminated, weak, damaged and deteriorated concrete and where necessary, sound concrete. Remove using mechanical handheld tools, high or ultra-high-pressure water blasting equipment.
3. Remove sufficient concrete from around corroded reinforcement to allow cleaning, application of a corrosion protection coating (where required) and compaction of the concrete repair mortar.
4. Prepare repair surface areas in simple square or rectangular layouts to avoid shrinkage stress concentrations and cracking while the repair material cures. This can also avoid structural stress concentrations from thermal movement and loading during the service life.

STEEL REINFORCEMENT

1. Remove rust, scale, mortar, concrete, dust and other loose and deleterious material which reduces bond or contributes to corrosion.
2. Prepare surfaces to bright steel, Sa 2 (ISO 8501-1), using abrasive blast cleaning or high-pressure water blasting equipment.

1. Pour the minimum amount of water into a suitable clean mixing container or equipment.
2. Gradually add the powder to the water while stirring slowly.
3. Mix thoroughly for at least for 3 minutes, add additional water if necessary.
   • Note: Do not add more water than 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

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

Protect from frost

Protect freshly applied material from freezing and frost to prevent cracking.

Application in the direct sun or strong winds

Avoid application in direct sun, strong winds or both to reduce the risk of the Product cracking.

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 Sheets).

BONDING PRIMER

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).

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

REPAIR MORTAR MANUAL APPLICATION

Substrate pre-wetting

Insufficient substrate saturation prior to application will cause the mortar to not gain full mechanical properties.

1. Only apply the Product to stable, prepared substrates.
2. Thoroughly pre-wet the prepared substrate for a minimum of 2 hours before application.
3. Keep the surface wet and do not allow to dry.
4. The final pre-wetted surface must achieve a dark matt appearance (saturated surface dry).

Sagging or slumping of built up layers

Allow each layer to slightly harden and remain wet before applying subsequent layers.

1. Remove excess water from within the surface pores and cavities with a clean sponge.
2. Make a scratch coat using the repair mortar.
3. Apply the scratch coat over the complete substrate surface to form a thin layer to fill surface pores or cavities.
4. IMPORTANT: Do not apply as a 'feather edge'. Apply the repair mortar onto the scratch coat ‘wet on wet’ between the minimum and maximum layer thicknesses without the formation of voids.

REPAIR MORTAR SPRAYED APPLICATION - WET SPRAY

Substrate pre-wetting

Insufficient substrate saturation prior to application will cause the mortar to not gain full mechanical properties.

1. Only apply the Product to stable, prepared substrates.
2. Thoroughly pre-wet the prepared substrate for a minimum of 2 hours before application.
3. Keep the surface wet and do not allow to dry.
4. The final pre-wetted surface must achieve a dark matt appearance (saturated surface dry).

Sagging or slumping of built up layers

Allow each layer to slightly harden and remain wet before applying subsequent layers.

1. Remove excess water from within the surface pores and cavities with a clean sponge.
2. Place the wet mixed repair mortar into the spraying equipment.
3. Spray the repair mortar onto the pre-wetted substrate between the minimum and maximum layer thicknesses without the formation of voids.

SURFACE FINISHING

Adding water during surface finishing

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

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

• Protect fresh mortar immediately from premature drying using an appropriate curing method, such as curing compound, moist geotextile membrane or polythene sheet.

• 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 removed mechanically.