SikaGrout®-9550

Ultra-high performance cementitious (UHPC) grout with advanced nanotechnology for offshore wind turbine installations

SikaGrout®-9550 is a ready-to-use, cement-based dry powder that forms a flowable, cohesive, and impermeable ultra-high performance cementitious (UHPC) grout when mixed with water. With advanced nano-engineered binder technology with blends of Portland, pozzolan, and special cements, achieves high compressive strength quickly. Offering excellent flowability and anti-washout properties, SikaGrout®-9550 is ideal for offshore wind turbine installations. Additionally, SikaGrout®-9550 is chloride-free, shrinkage-compensated, and highly resistant to water and aggressive ion penetration.

  • Certified by Det Norske Veritas (DNV)
  • Ultra-high mean compressive strength ≥135MPa.
  • Ultra-high modulus for exceptional stiffening properties.
  • Quick return to service and removal of temporary supports due to high early strength build-up. ≥ 70 MPa @ 24hrs at 20°C
  • Excellent fatigue resistance.
  • Excellent strength gain at low temperatures @ 0°C at 24hrs
  • No wash-out during below water grouting
  • Pump able over long distances and large heights.
  • Good flowability
  • High early strength
  • Shrinkage compensated
  • No segregation or bleeding
  • Extended pot life
  • Widest range of application between 0 to 35oC without special precautions
Contact the Technical Department of your local Sika office regarding any application at temperatures 35 oC to 45 oC.
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Areas of Application

SikaGrout®-9550 has been especially formulated for large scale, pump applications.
  • Grouting of wind turbine installations, e.g. foundations, monopiles, transition pieces of wind towers, tripods and jacket structures where very good fatigue resistance is required.
  • Grouting under very harsh conditions, e.g. offshore applications or below water grouting, at temperatures as low as 0°C.
  • All void filling from 25mm to 600mm thickness where high strength, high modulus is important.
Contact the Technical Department of your local Sika office regarding any application required not mentioned here.  

Advantages

  • Certified by Det Norske Veritas (DNV)
  • Ultra-high mean compressive strength ≥135MPa.
  • Ultra-high modulus for exceptional stiffening properties.
  • Quick return to service and removal of temporary supports due to high early strength build-up. ≥ 70 MPa @ 24hrs at 20°C
  • Excellent fatigue resistance.
  • Excellent strength gain at low temperatures @ 0°C at 24hrs
  • No wash-out during below water grouting
  • Pump able over long distances and large heights.
  • Good flowability
  • High early strength
  • Shrinkage compensated
  • No segregation or bleeding
  • Extended pot life
  • Widest range of application between 0 to 35oC without special precautions
Contact the Technical Department of your local Sika office regarding any application at temperatures 35 oC to 45 oC.

Product Details

Sustainability / Certifications / Approvals

CERTIFICATES AND TEST REPORTS

  • DNV Type Approval Certificate no. TAK00001BC

 
Product Information

Shelf life

12 months from date of production

Storage conditions

Product must be stored in original, unopened and undamaged sealed packaging in dry conditions away from direct sunlight and heat, not exceeding 40 oC. When stored under high temperature and high humidity conditions, the shelf life may be reduced.

Density

2.46 – 2.52 ton/m3

(EN 12390-7)
Technical Information

Compressive strength

Age

N/mm2

1 day

> 70

3 days

> 100

7 days

> 115

28 days

> 140

91 days

> 145

75 mm and 50 mm cubes

Age

N/mm2

1 day

> 70

3 days

> 95

7 days

> 105

28 days

> 130

91 days

> 135

150 x 300 mm cylinder

Exposure classes

XC4, XD3, XS3, XF3, XA2, WF

(DIN 1045-2; EN 206)

Early compressive strength class

A

Compressive strength class

> C100/115

Classification according to DAfStb Richtlinie

Modulus of elasticity in compression

53.000 N/mm2

(EN 12390-13)

Poisson's ratio:

0.19

(ASTM C469)

Flexural-strength

20.0 N/mm2

(EN 1015-11)

Tensile strength

8.0 N/mm2

(ASTM C307)

Shrinkage

Shrinkage class

SKVM 0

Classification according to DAfStb Ricthlinie

Autogenous shrinkage

Age

mm/m

1 day

+ 0.050

56 days

- 0.130

Expansion

> 0.1% vol.-%

(EN 445)

Creep

Creep coefficient at 1 year

0.7

(ASTM C512)

Application

Application Information

Mixing ratio

7.5 to 9.2 % water / powder ratio

Layer thickness

25 - 600 mm

Minimum

25 mm (valid for anchor cage grouting)

75 mm (valid for annuluses in tubular / conical grouted connections)

Maximum

600 mm

Material temperature

0 °C min. / +35 °C max.

Ambient air temperature

0 °C min. / +35 °C max.

Substrate temperature

0 °C min. / +35 °C max.

Pot Life

3 hours

Flowability

Initial

280 - 325 mm

1 hour

260 - 280 mm

Flow through

> 620 mm

Flow cone

> 290 mm

Flow class

f1

Classification according to DAfStb Richtlinie

Setting time

Initial

Final

6 - 8 hours

8-10 hours
Consumption

Consumption

Approximately 440 liters per ton material
Application steps

NOTES ON INSTALLATION

  • SikaGrout®-9550 has been especially formulated for use in specific applications. As such SikaGrout®-9550 should be installed by experienced fully trained contractors. Full application procedures are available on request.

  • Sands or other products that could affect the products properties must not be added.

EQUIPMENT

Mixer type

Paddle mixer

Mixing time

Approximately 6 minutes

Application method

One continuous pour

MIXING

SikaGrout®-9550 must be mixed using suitable grout mixing equipment combined with agitator for continuous large volume mixing. Volume capacity of equipment must be applicable to the volume of material being mixed for a continuous operation. Equipment trials must be considered to ensure product can be mixed satisfactory before full project application. Put most of the water required in the mixer and add slowly the grout material. Mix until a homogeneous mortar (3 to 4 minutes), add the remaining water and continue mixing for at least another 2 minutes until the required fluid or flowable consistency is obtained. Mix with potable water only. Do not add more water than the maximum specified.

CLEANING OF EQUIPMENT

Tools and spillages can be cleaned with water while SikaGrout®-9550 is still uncured. Once hardened, the material can only be removed mechanically.