Product Data Sheet Safety Data Sheet Show all documents

Sikacrete® Micro SCC UW

Self-Compacting Low Heat Micro Concrete for
underwater application

SikaCrete® Micro SCC UW is a self-compacting, cementitious micro concrete, with extended working time to suit local ambient temperatures.
SikaCrete® Micro SCC UW is a ready to use micro concrete that can be used for underwater applications. When mixed and placed correctly, the micro concrete will have no significant ‘wash out’ of the cement paste.

  • There is no significant ‘wash-out’ of cement paste when placed underwater
  • Excellent flowability
  • Good dimensional stability
  • High strengths, Adjustable consistency
  • No Bleeding
  • Non toxic, non corrosive
  • Ready and easy to use
  • Economical
  • Self compacting
Product Data Sheet Safety Data Sheet Show all documents

Usage

SikaCrete® Micro SCC UW is suitable for larger under water repairs to reinforced concrete structures employing the tremie concrete placement method.
  • Bridges columns
  • Pillars
  • Piles
  • Dams
 

Advantages

  • There is no significant ‘wash-out’ of cement paste when placed underwater
  • Excellent flowability
  • Good dimensional stability
  • High strengths, Adjustable consistency
  • No Bleeding
  • Non toxic, non corrosive
  • Ready and easy to use
  • Economical
  • Self compacting

Packaging

25 kg/ bag

Colour

Grey powder / Maximum aggregate size 8mm

Product Details

Product Information

Shelf life

9 months from date of production if stored properly in undamaged and
unopened,original sealed packaging.

Storage conditions

Store in dry conditions.

Density

~ 2.3 kg / litre fresh density of micro concrete

 
Technical Information

Compressive Strength

1 day ~ 20 N/mm2
7 days ~ 38 N/mm2
28 days ~ 55 N/mm2

(ASTM C-109)

Application

Application Information

Mixing Ratio

Powder should be added to the pre-gauged water to suit the desired consistency. For inverted cone of 5 second, approx. 2.20 litres of water should be used.
Mix mechanically with a plough share type concrete mixer. Mixing Time: Approximately 4 minutes.
Consumption

Yield

11.8 litre per 25 kg/bag or 85 bags for 1 m3 fresh micro concrete
Application steps

MIXING

SikaCrete® Micro SCC UW must be mechanically mixed using a mechanical forced action mixer (maximum speed: 500 rpm).
It is essential that mixing is carried out in a manner so that the pouring operation may continue without interruption.

APPLICATION

SikaCrete® Micro SCC UW can be poured through a tremie pipe or pumped through a flexible tube (minimum diameter of 50 mm.) to the lowest section of the form. The lower end of the pipe or flexible tube when raised during the placement must be kept immersed in the fresh concrete so that the rising concrete from the bottom displaces the water.
Make sure, that necessary formwork is firmly in place and leak proof. The micro concrete flow must be restricted during the pour so that the water is not entrapped.

 

CURING TREATMENT

Curing will not be required in submerged situations.
For application above the water level should be cured using suitable methods such as plastic sheeting, wet hessian, or Antisol® liquid membranes.

CLEANING OF EQUIPMENT

Clean all tools and application equipment with hot water immediately after use.
Hardened / cured material can only be mechanically removed.

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