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SikaGrout®-9650

Bulk supplied, high strength grout with applied nanotechnology for grouting offshore wind turbine installations

SikaGrout®-9650 is a shrinkage compensated grout which when mixed with water, produces a homogeneous, flowable and pumpable grout. Latest best binder packing models and applied cementitious nanotechnology produces a grout with superior technical performance, and exceptional rheological properties.

  • Compressive strength class C60/75, even at cold temperatures.
  • Available as silo material.
  • Can be applied in the shortest weather windows.
  • Excellent strength gain.
  • No segregation or bleeding to ensure consistent final physical performance.
  • For applications in a wide temperature range.
  • Excellent flow and pumping properties reduce installation times and costs.
  • Very fast grout installation: limited to no interference with the critical path of the installation vessel.
  • Pumpable through 2” grout lines.
  • Volume stable.
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Areas of Application

SikaGrout®-9650 has been especially formulated for large scale, pump applications.
  • For use as high strength grout in offshore foundations like monopiles using bolted connections
  • For rock socket structural grouting in offshore applications, or similar.
  • Grouting of structural and non-structural parts of offshore wind turbine installations, e.g as skirt backfill
  • Grouting under very harsh conditions, e.g. at temperatures as low as 0°C.
Contact the Technical Department of your local Sika office regarding any application required not mentioned here.  

Advantages

  • Compressive strength class C60/75, even at cold temperatures.
  • Available as silo material.
  • Can be applied in the shortest weather windows.
  • Excellent strength gain.
  • No segregation or bleeding to ensure consistent final physical performance.
  • For applications in a wide temperature range.
  • Excellent flow and pumping properties reduce installation times and costs.
  • Very fast grout installation: limited to no interference with the critical path of the installation vessel.
  • Pumpable through 2” grout lines.
  • Volume stable.

Product Details

Sustainability / Certifications / Approvals

CERTIFICATES AND TEST REPORTS

Certified by Det Norske Veritas (DNV)
DNV Type Approval Certificate No: TAK0000202
Product Information

Shelf life

6 months from date of production.

First-in / First-out principle shall however be used.

Storage conditions

Product must be stored in closed silos or warehouse under dry conditions.

Density

Approximately 2.25 gr/cm3

 
Technical Information

Compressive strength

N/mm2

5 oC

10 oC

20 oC

8 hours

≥ 5

12 hours

≥ 5

≥ 30

1 day

≥ 30

≥ 40

≥ 65

7 days

≥ 70

≥ 75

28 days

≥ 75

≥ 80

≥ 90

Results of 150 mm cubes

Concrete strength class

C60/75

(EN 206)

Characteristic compressive strength:

Age

20 oC

-1 oC

28 days

≥ 80 N/mm2

≥ 80 N/mm2

Results of 150 x 300 mm cylinders

Exposure classes:

XO, XC4, XD3, XS2, XS3, XF3, XA2, WA

(EN 206)

Modulus of elasticity in compression

Age

GPa

28 days

35.6

Poisson´s ratio:

0.19

(ASTM C469)

Flexural-strength

Age

20 oC

-1 oC

28 days

≥ 15 N/mm2

≥ 14 N/mm2

Results of 40 x 40 x 160 mm prisms

Shrinkage

Restrained shrinkage:

Age

mm/m

28 days

0.035

Bleeding

No bleeding

Sedimentation stability: 

No sedimentation

(in accordance of DAfStb Self compacting concrete, section N.1.2.)

Application

Application Information

Mixing ratio

140 (± 5) litres / 1000 kg powder 

Layer thickness

50 - 1000 mm

Material temperature

0 °C min. / +30 °C max.

Ambient air temperature

0 °C min. / +30 °C max.

Substrate temperature

0 °C min. / +30 °C max.

Pot Life

20°C

10°C

≥ 180 minutes

≥ 240 minutes

 
Consumption

Consumption

1000 kg powder will yield approximately 485 to 530 litre of mixed grout.
Application steps

NOTES ON INSTALLATION

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

  • SikaGrout®-9650 which will be exposed to strong drying conditions, e.g. mortar which is directly exposed to heavy wind and/or direct sunlight, should be protected using appropriate curing agents.

  • As the powder may densify over time, especially when the goods are stored on the vessel in the offshore silos and exposed to many vibrations, the First-in / First-out principle is key to a successful grouting job.

EQUIPMENT

Mixer and pump type

Continuous mixing and pumping system

Batch mixing system

Operating limitations:

Minimum diameter of grout lines

≥ 2 inch

Grout annulus

50 ≤ t ≤ 1000

Pumping length through 2” flexible hose

L ≤ 225 m

Pumping elevated head with 2” flexible hose

H ≤ 25 m

 

CLEANING OF EQUIPMENT

Tools and spillages can be cleaned with water while SikaGrout®-9650 is still uncured. Once hardened, the material can only be removed mechanically.