Product Data Sheet Show all documents

SikaEmaco® S 810

(former MEmaco S 810)

Micro concrete for dry process shotcrete application of repairs and CP overlays

SikaEmaco® S 810 is a ready to use cement based single component shotcrete mortar modified with microsilica. The formulation is designed to match the requirements for a dry process shotcrete applied mortar. It gives high early strength, reduced rebound and maximum application thickness, coupled with resistivity values commensurate with accepted criteria for cathodic protection (CP) overlays.

  • Single component - ready to use.
  • High build - up to 150mm can be applied at one pass.
  • Low rebound - grading and formulation allow for excellent penetration and compaction with minimum loss of aggregate through rebound.
  • Low dust - formulation ensures dust is kept to a minimum.
  • Safe to handle - no added caustic accelerators.
  • Excellent adhesion to concrete and steel.
  • Rapid strength gain.
  • Low water absorption and chloride ion diffusion.
  • High resistance to carbon dioxide penetration.
Product Data Sheet Show all documents

Usage

  • Large area concrete repairs.
  • Refurbishment of columns, bridges, tunnels and retaining walls.
  • CP overlays
  • Single application, high build application.
  • Repair of fire damaged structures, marine structures, piers, quays, off shore platforms etc.
  • Sealing of mine roadways, tunnels, etc.
  • Rock and embankment stabilisation.
  • Swimming pool construction.
  • Cathodic protection overlays.
 

Advantages

  • Single component - ready to use.
  • High build - up to 150mm can be applied at one pass.
  • Low rebound - grading and formulation allow for excellent penetration and compaction with minimum loss of aggregate through rebound.
  • Low dust - formulation ensures dust is kept to a minimum.
  • Safe to handle - no added caustic accelerators.
  • Excellent adhesion to concrete and steel.
  • Rapid strength gain.
  • Low water absorption and chloride ion diffusion.
  • High resistance to carbon dioxide penetration.

Packaging

SikaEmaco® S 810 is supplied in 30 Kg and Jambo bag 1000 Kg

Colour

Grey granular powder

Product Details

Product Information

Shelf life

Shelf life is 12 months when stored as storage instructions.

Storage conditions

Store out of direct sunlight, clear of the ground on pallets protected from rainfall. Avoid excessive compaction.

Maximum grain size

5 mm

Density

Dry bulk: 1700kg/m³
Technical Information

Compressive strength

BS 4551 at 20°C and 0.085 w/p ratio : 24 hours 15N/mm² / 28 days 40N/mm²
 

Electrical resistivity

<50,000Ωcm

Application

Consumption

Consumption

A 25kg bag of SikaEmaco® S 810 will yield approximately 11.3 litres. Site trials are advisable to obtain accurate wastage factors due to variances in surface preparation, equipment and nozzlemen.
Application steps

SURFACE PREPARATION

All surfaces to be treated should be sound and clean. All traces of oils, greases or surface contaminants and laitance should be removed by water, grit blasting or scabbling. All traces of rust and corrosion products should be removed by wet or dry blasting from exposed reinforcing steel to achieve SA 2½ according to Swedish standard SIS 055900.
The prepared substrate should be thoroughly soaked with clean water and all standing water removed before the application of SikaEmaco® S 810. Extra protection can be given to reinforcing steel by the use of SikaEmaco®-8100 AP (see separate data sheets).

 

APPLICATION

SikaEmaco® S 810 should be emptied directly into the hopper of the dry process shotcrete pump. The amount of water added at the spraying nozzle will be controlled by the nozzleman - too low an addition will increase rebound and dust emission, too wet a mix will slump.

Any necessary trowelling or profiling should be done immediately after spraying has finished. If overcoating is to follow, finish with a wooden float or damp sponge.

CURING TREATMENT

Normal good practice is necessary. Curing can be by use of hessian maintained in a damp condition by properly secured plastic sheeting. The most convenient method is by spray application of a film forming curing membrane from the MasterKure range.

CLEANING OF EQUIPMENT

All tools and equipment should be cleaned with water immediately after use.
SikaEmaco® S 810 must not be left in spraying equipment or delivery hoses. Hardened SikaEmaco® S 810 can only be removed by mechanical means.

 

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