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Sika MonoTop-4012, Strong and sustainable repair mortar for concrete, Interior & Exterior, Grey Powder, 25 kg

Cement & Mortar
SIKA

Sika is a global leader in specialty chemicals for the construction and industrial sectors. The company develops and supplies innovative products and systems for bonding, sealing, damping, reinforcing, and protecting structures. With a strong focus on sustainability and performance, Sika serves a wide range of applications including concrete production, waterproofing, roofing, flooring, and structural strengthening.

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High-performance, more sustainable, Class R4 concrete repair mortar

Sika MonoTop-4012 is a one-part, cementitious, fibre reinforced, low shrinkage repair mortar. It contains recycled raw materials and can reduce the carbon footprint application activity calculations.

  • Uses recycled raw materials.
  • Layer thickness 6 to 120 mm.
  • Sulphate resistant.
  • Hand and machine application (wet spray technique).
  • Easy to apply.
  • Very low shrinkage.
  • Dust reduced for a cleaner, healthier environment.
  • Good resistance to sea water.
  • Does not require a bonding primer.
  • Can be safely used in contact with steel (very low chloride content).
  • Low permeability.
  • EuroClass A1 reaction to fire rating.
  • Class R4 of EN 1504-3.
  • Resistant to sulfuric acid attack (exposure classes XWW1 and XWW3).
  • Drinking Water Certified.
Usage
Sika MonoTop-4012 is used to repair all types of reinforced concrete structures and components for:
  • Buildings.
  • Civil engineering structures.
  • Dams.
  • Marine structures.
  • Suitable for interior or exterior applications.
  • Sewage and waste water treatment plants.
The product is used for:
  • Restoration work (Principle 3, method 3,1 and 3,3 of EN 1504-9). Repair of spalling and damaged concrete in infrastructure and superstructure works.
  • Structural strengthening (Principle 4, method 4,4 of EN 1504-9). Increasing the bearing capacity of the concrete structure by adding mortar.
  • Preserving or restoring passivity (Principle 7, method 7,1 and 7,2 of EN 1504-9) - Increasing cover with additional mortar and replacing contaminated or carbonated concrete. 
 
Advantages
  • Uses recycled raw materials.
  • Layer thickness 6 to 120 mm.
  • Sulphate resistant.
  • Hand and machine application (wet spray technique).
  • Easy to apply.
  • Very low shrinkage.
  • Dust reduced for a cleaner, healthier environment. 
  • Good resistance to sea water.
  • Does not require a bonding primer.
  • Can be safely used in contact with steel (very low chloride content). 
  • Low permeability.
  • EuroClass A1 reaction to fire rating.
  • Class R4 of EN 1504-3. 
  • Resistant to sulfuric acid attack (exposure classes XWW1 and XWW3). 
  • Drinking Water Certified.
Packaging

25 kg bag

Colour

Grey powder

Technical Information
Abrasion Resistance

Wear Resistance Böhme, wet procedure

< 12 cm3/50 cm2

Compressive Strength

Class R4

(EN 1504-3)

Time

Compressive strength

1 day

~19 MPa

7 days

~43 MPa

28 days

~56 MPa

Modulus of Elasticity in Compression

≥ 20 GPa

(EN 13412)

Flexural Strength

Time

Tensile strength in flexure

1 day

~4.4 MPa

7 days

~7.0 MPa

28 days

~8.0 MPa

Tensile adhesion strength

≥ 2.0 MPa

(EN 1542)

Shrinkage

~500 μm/m (+20 °C / 65 % relative humidity at 28 days)

(EN 12617-4)

Restrained Shrinkage / Expansion

≥ 2.0 MPa

(EN 12617-4)

Electrical Resistivity

~32 kΩ·cm at 100% relative humidity @ 20°C

(ISO 12696)

Thermal Compatibility

≥ 2.0 MPa (Part 1 - Freeze-Thaw)

(EN 13687-1)

Capillary Absorption

≤ 0.5 kg∙m-2·h-0.5

(EN 13057)

Water Penetration under Pressure

~10 mm 

(EN 12390-8)

Chloride Ion Diffusion Resistance

Low: < 2000 coulombs

(ASTM C 1202)

Chloride diffusion coefficient: 4.8 x 10-12 m2/s

(EN 12390-11)

Carbonation Resistance

dk ≤ control concrete MC (0.45)

(EN 13295)

Reaction to Fire

EuroClass A1

(EN 1504-3)

Application Information
Fresh mortar density

~2.1 kg/L

Layer Thickness

Orientation

Minimum

Maximum

Horizontal

6 mm

120 mm

Vertical

6 mm 

~85 mm (~120 mm in localised areas)

Overhead

6 mm 

~30 mm (~50 mm in localised areas)

Product Temperature

Maximum

+30 °C

Minimum

+5 °C

Ambient Air Temperature

Maximum

+30 °C

Minimum

+5 °C

Mixing Ratio

3.75 to 3.9 L of water for a 25 kg bag

Substrate Temperature

Maximum

+30 °C

Minimum

+5 °C

Pot Life

~60 minutes at +20 °C