Product Data Sheet Show all documents

SikaEmaco® S 488 PM

(former MEmaco S 488PM)

Polymer Modified, Shrinkage Compensated, Fibre Reinforced, Thixotropic Repair Mortar

SikaEmaco® S 488 PM is a polymer modified, 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 488 PM provides the following beneficial properties:
  • Structural repair
  • Can be spray applied - rapid application of large quantities
  • Rapid strength gain and high final strength
  • Good water and oil resistance
  • Low shrinkage behaviour
  • High abrasion resistance
  • Good adhesion
  • Easy to apply
  • Low permeability
Product Data Sheet Show all documents

Usage

SikaEmaco® S 488 PM 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 488 PM provides the following beneficial properties:
  • Structural repair
  • Can be spray applied - rapid application of large quantities
  • Rapid strength gain and high final strength
  • Good water and oil resistance
  • Low shrinkage behaviour
  • High abrasion resistance
  • Good adhesion
  • Easy to apply
  • 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.

Maximum grain size

~4 mm

 
Technical Information

Compressive strength

1 Day

28 days

w/p = 0.14

≥ 25 N/mm2

≥ 70 N/mm2

Tensile adhesion strength

≥ 1.5 N/mm2 (or concrete failure)

(BS EN 1542)

Application

Application Information

Fresh mortar density

~2.19 kg/l (+25 °C)

Layer thickness

Min. 10 mm
Max. 50 mm

Mixing ratio

3.5 - 4.0 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 488 PM with the necessary amount of cold water in a clean bucket. Add the SikaEmaco® S 488 PM powder slowly to the water while mixing continuously for at least 3 to 5 minutes and until a homogeneous consistency is achieved.

SikaEmaco® S 488 PM 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.

Note: Always start with minimum recommended quantity of water (water/powder ratio), only if required, gradually add water to desired consistency. Do not exceed maximum allowed limit of water per bag weight.

APPLICATION

Apply SikaEmaco® S 488 PM while the bonding agent is still wet. The mortar can be applied by spatula, trowel or by spray application. 

For any thickness more than 50 mm, SikaEmaco® S 488 PM 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 488 PM.

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 from 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 488 PM can only be removed mechanically.

 

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