Sika MonoTop®-3020
Cementitious, R3 pore filler and levelling mortar containing recycled waste materials
Sika MonoTop®-3020 is a 1-part, cementitious polymer modified, low shrinkage surfacing/ finishing mortar. It contains recycled waste materials and can reduce the carbon footprint application activity calculations.
- Uses recycled waste materials
- Layer thickness 1–5 mm
- Dust reduced
- Application up to 5 mm in 1 layer on vertical and horizontal applications
- High early strengths even at low temperatures
- Good surface finishing
- Low cracking sensitivity
- Sulphate resistant
- Hand and machine application (wet spray technique)
- Very good resistance to water and chloride penetration
- Compatible with Sikagard® overcoat systems
- Ready to mix with water
- Does not contain chlorides or other corrosion promoting additives
- A1 fire rating
- Class R3 of EN 1504-3
- Restoration work (Principle 3, method 3.1 and 3.3 of EN 1504-9)
- Preserving or restoring passivity (principle 7, method 7.1 and 7.2 of EN 1504-9)
Areas of Application
Sika MonoTop®-3020 may only be used by experienced professionals.- Thin layer render
- Use as a concrete pore filler/ levelling mortar
- Repairing of minor defects (pores and honeycombed concrete)
- Structures requiring a Class R3,R2,R1 mortar
- For interior and exterior use
Advantages
- Uses recycled waste materials
- Layer thickness 1–5 mm
- Dust reduced
- Application up to 5 mm in 1 layer on vertical and horizontal applications
- High early strengths even at low temperatures
- Good surface finishing
- Low cracking sensitivity
- Sulphate resistant
- Hand and machine application (wet spray technique)
- Very good resistance to water and chloride penetration
- Compatible with Sikagard® overcoat systems
- Ready to mix with water
- Does not contain chlorides or other corrosion promoting additives
- A1 fire rating
- Class R3 of EN 1504-3
- Restoration work (Principle 3, method 3.1 and 3.3 of EN 1504-9)
- Preserving or restoring passivity (principle 7, method 7.1 and 7.2 of EN 1504-9)
Packaging
25 kg bag
Color
Grey Powder
Product Details
SUSTAINABILITY
- IBU Environmental Product Declaration (EPD) available
APPROVALS / CERTIFICATES
- CE Marking and Declaration of Performance to EN 1504-3 - Concrete repair product for structural repair.
Composition
Sulphate resistant cement, selected aggregates, additives and polymers
Shelf life
12 months from date of production
Storage conditions
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.
Maximum grain size
Dmax: 0,4 mm
Soluble chloride ion content
| ≤ 0,05 % | (EN 1015-17) |
Product declaration
Complies with the general requirements of EN 1504-3: Class R3.
System structure
Reinforcement Corrosion Protection/ Bonding Primer*
| Sika MonoTop®-1010 | Normal Use |
| SikaTop® Armatec® 110 EpoCem® | Demanding requirements |
Concrete Repair Mortar
- Sika MonoTop®-4012
Pore Filler/ Smoothing Coat / Levelling Mortar
- Sika MonoTop®-3020
* Other primers can be used (e.g. Sika MonoTop®-910N). Contact your local Sika Company for more information
Compressive strength
| 1 day | ~8 MPa |
| 7 days | ~20 MPa |
| 28 days | ~40 MPa |
Tensile strength in flexure
| 28 days | ~6 MPa |
Tensile adhesion strength
| ≥ 1,5 MPa | (EN 1542) |
Thermal compatibility
| ≥ 1,5 MPa (Part 1 Freeze-Thaw) | (EN 12687-1) |
Coefficient of thermal expansion
| ~10,5 × 10-6 1/K | (EN 1770) |
Reaction to fire
| Class A1 | (EN 13501-1) |
Capillary absorption
| ≤ 0,5 kg·m-2·h-0,5 | (EN 13057) |
Permeability to carbon dioxide
< 2700 µCO2
Carbonation resistance
| dk ≤ control concrete MC (0,45) | (EN 13295) |
Application
Mixing ratio
~4,7 litres of water for 25 kg powder.
Fresh mortar density
~2,0 kg/l
Layer thickness
| Horizontal | min.1 mm / max. 5 mm |
| Vertical | min.1 mm / max. 5 mm |
| Overhead | min.1 mm / max. 5 mm |
Ambient air temperature
+5 °C min. / +35 °C max.
Substrate temperature
+5 °C min. / +35 °C max.
Waiting time to overcoating
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 Sikagard® range of protective coatings. For other emulsion paints, refer to the relevant manufacturer’s data sheet/ documentation.
Consumption
~1,7 kg/m2/mm
Consumption depends on the roughness and absorbency of the substrate.
This figure is theoretical and does not allow for any additional material due to surface porosity, surface profile, variations in level or wastage etc.
Yield
25 kg of powder yields approximately 14,85 litres of mortar
EQUIPMENT
Substrate preparation
- Mechanical hand held tools
- High / ultra-high pressure water blasting system
Steel reinforcement
- Abrasive blast cleaning system
- High pressure water blasting system
Mixing
- Small quantities - low speed electric single or double paddle mixer (<500 rpm). Mixing Container.
- Large quantities or machine application - suitable forced action mixer
Application
- 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
- Trowel ( Steel, PVC or wooden),sponge
- Also refer to Site Handbook ‘Repair of Concrete Structures – Patch Repair and Spray Applications’
MIXING
Hand applied or Wet Spray Application
Pour the minimum recommended clean water quantity 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 to achieve a smooth consistent mix. The consistency must be checked after every mix.
APPLICATION
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 Sheet(s)).
Bonding Primer
On a well prepared and roughened substrate or for a sprayed application, a bonding primer is generally not required. When a bonding primer is required to achieve the required adhesion values, use Sika MonoTop®-1010 or SikaTop® Armatec® 110 EpoCem® (Refer to respective Product Data Sheets). Apply repair mortar onto bonding primer “wet on wet”.
Levelling Mortar
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 must appear a dark matt appearance without shining and surface pores and cavities must not contain water.
When manually applying by hand, first make a scratch coat by firmly scraping the mortar over the substrate surface to form a thin layer and fill any pores or cavities in the surface. Ensure the whole surface to be repaired is covered by the scratch coat. The mortar must be applied onto the wet scratch coat between the minimum and maximum layer thicknesses without the formation of voids.
Sprayed Application - Wet Spray
The wet mixed Sika MonoTop®-3020 must be placed into the spraying equipment and applied onto the pre-wetted substrate (pre-wet procedure as hand application) 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”.
Surface finishing
Finishing for all types of application must be carried out to the required surface texture using suitable finishing tools as soon as the mortar has started to stiffen
CURING TREATMENT
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.
CLEANING OF EQUIPMENT
Clean all tools and application equipment with water immediately after use. Hardened material can only be mechanically removed.