Product Data Sheet Show all documents

SikaGrout® UW id

SHRINGKAGE COMPENSATED CEMENTITIOUS GROUT FOR UNDERWATER APPLICATION

SikaGrout® UW id is a ready to use, cementitious grout that can be used for applications underwater. The grout, when properly mixed, will have no significant ‘wash out’ of the cement phase. SikaGrout® UW id is a blend of Portland cement, carefully selected and graded aggregates, and Sika admixtures, enabling it to achieve excellent flow, and non-wash out characteristics.

  • There is no significant ‘wash-out’ of cement phase when placed underwater
  • Effectively displaces water
  • Shrinkage compensating properties
  • Does not segregate or bleed
  • Good impact, vibration and thermal resistance
  • Non-corrosive to steel or iron
Product Data Sheet Show all documents

Usage

SikaGrout® UW id can be used for free flowing or pumped grout applications underwater, for reinstating concrete, such as:
  • Bridge columns
  • Pillars
  • Piles
  • Spillways
  • Dams
 

Advantages

  • There is no significant ‘wash-out’ of cement phase when placed underwater
  • Effectively displaces water
  • Shrinkage compensating properties
  • Does not segregate or bleed
  • Good impact, vibration and thermal resistance
  • Non-corrosive to steel or iron

Packaging

20 kg plastic bag

Colour

Powder / Grey

Product Details

Product Information

Shelf life

9 months from the date production if stored in undamaged and unopened original sealed packaging.

Storage conditions

Stored in dry condition between +10 °C - +30 °C.

Density

Wet: ~1.95 kg/L (at +20 °C)
Technical Information

Compressive strength

3 days

~20.0 N/mm2

7 days~25.0 N/mm2
28 days~40.0 N/mm2

Flexural-strength

28 days

~5.0 N/mm2

Application

Application Information

Flowability

Flow cone (mm)

≥ 200 mm

Material temperature

< +30 °C, max.

Mixing ratio

5.0 L for each 20 kg bag of powder.

Substrate temperature

< +35 °C, max.

Setting time

3 days (under water)
1 day (at +23 °C)
Consumption

Yield

~12.8 L per 20 kg bag.
Application steps

MIXING

Put measured quantity of water (depend on the required consistency) into a mixing vessel. Add slowly the total contents of SikaGrout® UW id while
mixing.
Mix continuously for 3 minutes to achieve even consistency. Use a mechanically low speed drill (400 - 600 rpm) with mixing paddle or appropriately sized mortar mixer.
Mix the grout until it appears homogenous.
Allow to stand so any entrapped air can escape.
Do not add more water to increase flow of grout if a mix has stiffened due to time delays.
If grout is unworkable, discard.

APPLICATION

SikaGrout® UW id can be poured or pumped through a flexible tube (minimum diameter of 50 mm) to the lowest section of the form.
The grout flow must be restricted during the pour so that the water is not entrapped.
The flexible tube can be raised to reduce pressure; however, it should never be raised above the surface level of the grout.

 

CURING TREATMENT

Curing will not be required in submerged situations.
Grout cast above the water 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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