Product Data Sheet Show all documents

SikaGrout®-280 HS

HIGH PRECISION AND MICRO STEEL FIBRE REINFORCED, NON-SHRINK CEMENTITIOUS GROUT

A non-shrink, cementitious premixed grout with micro steel fibre to provide excellent impact and vibration resistance.

  • Easy to use, just add water and mix the micro steel fibre
  • Good flow characteristic.
  • Adjustable consistency.
  • Rapid strength development.
  • Highly improved Impact and vibration resistant compared to conventional cementitious grout
  • Shrinkage compensated.
  • High final strength.
  • Non-Toxic.
Product Data Sheet Show all documents

Usage

For grouting over a wide range of applications:
  • Machine bedding/base plates
  • Turbine - generator set base plates
  • Centrifugal compressors
  • Crane rails
  • Crusher – Ball Mills
  • Structure that has high vibration
 

Advantages

  • Easy to use, just add water and mix the micro steel fibre
  • Good flow characteristic.
  • Adjustable consistency.
  • Rapid strength development.
  • Highly improved Impact and vibration resistant compared to conventional cementitious grout
  • Shrinkage compensated.
  • High final strength.
  • Non-Toxic.

Packaging

25 kg bag (consist of grout and separate micro steel fibre pouch inside the bag)

Colour

Powder / Grey

Product Details

Product Information

Shelf life

6 months from date of production if stored in undamaged and unopened original sealed bags

Storage conditions

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

Density

~2.28 kg/L
Technical Information

Compressive strength

1 day

~40.0 N/mm2

3 days~60.0 N/mm2
7 days~73.0 N/mm2
28 days~88.0 N/mm2

Tensile strength in flexure

1 day

~2.0 N/mm2

3 days~4.0 N/mm2
7 days~9.0 N/mm2
28 days~18.0 N/mm2

Tensile adhesion strength

28 Days

~1.5 N/mm2

(Concrete failure, over mechanically roughened concrete surface)

28 Days

~2.5 N/mm2

(Over mechanically roughened grout surface)

Expansion

1 - 3 h (at +27 °C)

0.3 - 0.8 %

Application

Application Information

Mixing ratio

4.0 L per 25 kg bag (water per powder = 16 % by weight)

Layer thickness

Recommended thickness is 20 - 150 mm

Flowability

Flow cone (mm)

≥ 200 mm*

*measured after mixed

Material temperature

< +30 °C, max

Ambient air temperature

+10 °C - +35 °C

Substrate temperature

+10 °C - +35 °C

Pot Life

25 min

Setting time

Initial Setting Time (at +27 °C)

~5 - 8 h

Final Setting Time (at +27°C)~6 - 9 h
Consumption

Consumption

~1 970 kg/m3 of mortar.

Yield

12.70 L per 25 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®-280 HS while mixing. Mix continuously for 2 minutes to achieve even consistency. Use a mechanically low speed drill (400 - 600 rpm) with mixing paddle or appropriately sized mortar mixer. 

Pour micro steel fibre reinforced into mixed material SikaGrout®-280 HS, then mix mechanically for 1 minute to get homogeneous. Total mixing time is 3 minutes. 

Before pouring, leave the mixture to stand for 2-3 minutes, in order to allow entrapped air to escape.

APPLICATION

Within 25 minutes after mixing, place grout into forms one side to avoid air entrapment. Do not vibrate. Use a suitable head box of 150 – 200 mm and maintain the grout head at all times to ensure a continuous flow. Gentle tapping or pulling loops of wire from one side may assist the flow of the mortar under difficult working conditions.

CURING TREATMENT

Wet cure for a minimum of 3 days with wet hessian, plastic sheet or apply a curing compound (Antisol).

CLEANING OF EQUIPMENT

Clean all tolls and application equipment with water immediately after use. Hardened and / or cured material can only be remove mechanically.

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