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SikaEmaco® S 422

(former MEmaco S 422)

Single Component, High Strength, Fibre Reinforced, Structural Repair Mortar

SikaEmaco® S 422 is a single component, cementitious, synthetic fibre reinforced, structural repair mortar that contains Portland Cement, well graded sands, specially selected fibres and additives to improve the fresh and hardened properties. Suitable for use in hot and tropical climatic conditions.

SikaEmaco® S 422 provides the following beneficial properties:
  • Structural repair
  • Rapid strength gain and high final strength
  • Good water and oil resistance
  • Low shrinkage behaviour
  • High abrasion resistance
  • Good adhesion
  • Easy to apply
  • Reduced cracking tendency
  • Low permeability
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Usage

SikaEmaco® S 422 is used for structural repair work and suitable for:
  • Restoration works, repair of spalling and damaged concrete in buildings, bridges, infrastructure and superstructure works.
  • Structural strengthening by increasing the bearing capacity of the concrete structure by adding mortar (section enlargement).
  • Preserving or restoring passivity by increasing cover with additional mortar and replacing contaminated or carbonated concrete.
 

Advantages

SikaEmaco® S 422 provides the following beneficial properties:
  • Structural repair
  • Rapid strength gain and high final strength
  • Good water and oil resistance
  • Low shrinkage behaviour
  • High abrasion resistance
  • Good adhesion
  • Easy to apply
  • Reduced cracking tendency
  • Low permeability

Packaging

25 kg bags

Colour

Grey powder

 

Product Details

Product Information

Composition

Polymer containing cementitious mortar with different additives and synthetic fibres

Shelf life

12 months from date of production

Storage conditions

Store in a cool, dry area in original sealed packaging and at temperatures between +5 °C and +35 °C. Protect from direct sunlight, heat and moisture.
Technical Information

Compressive strength

28 day

w/p = 0.13

≥ 65N/mm2

Tensile adhesion strength

≥ 1.5 N/mm2 (or concrete failure)

(EN 1542)

Application

Application Information

Fresh mortar density

~ 2.21 kg/l (+25 °C)

Layer thickness

Min. 10 mm
Max. 40 mm

Ambient air temperature

+5 °C min. / +40 °C max.

Mixing ratio

3.2 - 3.5 L of water per 25 kg bag

Substrate temperature

+5 °C min. / +40 °C max.
Application steps

MIXING

Mix the full bag of SikaEmaco® S 422 with the necessary amount of cold water in a clean bucket. Add the SikaEmaco® S 422 powder slowly to the water while mixing continuously for at least 3 to 5 minutes and until a homogeneous consistency is achieved.

SikaEmaco® S 422 is best mixed in a forced action mixer. Slow speed double paddle drill can be also used for mixing. Do not mix at faster rate than 500 rpm. The obtained mix results should be very creamy, easily spreadable and thixotropic.

APPLICATION

Apply SikaEmaco® S 422 while the bonding agent is still wet. The mortar can be applied by spatula or trowel.

For any thickness more than 40 mm, SikaEmaco® S 422 must be applied in several layers. As soon as the mortar has started to set it can be smoothed by wooden or synthetic float. For fine surface finish SikaEmaco® N 907 or SikaRep® Fine N can be applied over the SikaEmaco® S 422.

CURING TREATMENT

Where ambient conditions may lead to rapid surface drying, the use of light water fogging, damp hessian and polythene sheet or application of a suitable water based curing compound like Sika® Antisol range is recommended. Do not commence fogging until final set has been reached.

CLEANING OF EQUIPMENT

Clean all tools and equipment with water immediately after use. Hardened SikaEmaco® S 422 can only be removed mechanically.

 

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