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SikaGrout®-9500

Ultra-high strength, high modulus, cement based grout with applied nanotechnology for grouting offshore wind turbine installations

SikaGrout®-9500 is a shrinkage compensated, cement based grout which when mixed with water, produces a homogeneous, flowable and pumpable grout with exceptionally high early and final strength and modulus. Latest best binder packing models and applied cementitious nanotechnology produces a grout with superior technical performance, exceptional rheological properties, and, uniquely, extended open times.

  • Certified by Det Norske Veritas (DNV)
  • Ultra-high mean compressive strength ≥135MPa.
  • Ultra-high modulus for exceptional stiffening properties.
  • Very good fatigue resistance.
  • Quick return to service and removal of temporary supports due to high early strength build-up. ≥ 60 MPa at 24hours under 20°C
 
  • Excellent strength gain at low temperatures at 24 hours under 0°C
  • No segregation or bleeding to ensure consistent final physical performance and to prevent pump blockages
  • No wash-out during below water grouting
  • Pump able over long distances and large heights.
  • Extended pot life of ≥ 4 hours
  • Specially graded sands and exceptional flow and low friction increases pump output, reduces installation times and costs as well as reducing pump pressures and wear
  • Dust reduced for ease of handling and safety of workers
  • Available in special, watertight big bags for large scale application.
  • Meets the requirements of EN1504-6 for anchoring reinforcement bars.
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Areas of Application

SikaGrout®-9500 has been especially formulated for large scale, pump applications.
  • Grouting of wind turbine installations, e.g. foundations, monopiles, transition pieces of wind towers, 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 (in other applications or where void dimensions of 10 - 25 mm are to be filled contact our technical department).
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.
  • Very good fatigue resistance.
  • Quick return to service and removal of temporary supports due to high early strength build-up. ≥ 60 MPa at 24hours under 20°C
 
  • Excellent strength gain at low temperatures at 24 hours under 0°C
  • No segregation or bleeding to ensure consistent final physical performance and to prevent pump blockages
  • No wash-out during below water grouting
  • Pump able over long distances and large heights.
  • Extended pot life of ≥ 4 hours
  • Specially graded sands and exceptional flow and low friction increases pump output, reduces installation times and costs as well as reducing pump pressures and wear
  • Dust reduced for ease of handling and safety of workers
  • Available in special, watertight big bags for large scale application.
  • Meets the requirements of EN1504-6 for anchoring reinforcement bars.

Product Details

Sustainability / Certifications / Approvals

CERTIFICATES AND TEST REPORTS

DNV-VALIDATION

DNV Type Approval Certificate number: TAK00000T1

The certification programme for SikaGrout®-9500, which is the basis for issuing the DNV product certificate, comprised the following main activities:

  • Validation and acceptance of test methodology, procedures and extent of testing

  • Evaluation and acceptance of the external, independent testing laboratory for testing properties

  • of SikaGrout®-9500

  • Witnessing and acceptance of the laboratory tests, and the reporting thereof

  • Evaluation and witnessing of mock-up tests, and large scale pumping trials, and the acceptance of the reporting thereof

  • Audit, evaluation and acceptance of grout manufacturing equipment and facilities

  • Audit, evaluation and acceptance of Sika’s internal laboratory with respect to production quality control of SikaGrout®-9500

 

  • Evaluation and acceptance of results of the tests and trials carried out to demonstrate the materials suitability for use in offshore applications, such as grouted connections of monopile foundations for offshore wind turbines or similar.

  • The validation and certification related to the above mentioned activities are carried out in accordance with applicable EN-standards and DNV-OS-C502 (Offshore concrete structures)

 

FATIGUE RESISTANCE 

  • Certified by DNV-OS-C502. More detailed results are available on request.
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.  

Density

Approximately 2.4 gr/cm3
Technical Information

Compressive strength

Age (N/mm2)

20 oC

10 oC

5 oC

2 oC

1 day

≥ 60

≥ 15

2 days

≥ 80

≥ 60

≥ 35

≥ 25

3 days

≥ 95

≥ 85

≥ 65

≥ 45

7 days

≥ 120

≥ 120

≥ 85

≥ 60

28 days

≥ 135

Results of 75 mm cubes

Exposure classes

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

(EN 206)

Modulus of elasticity in compression

GPa

20 oC

28 days

49.9

Flexural-strength

N/mm2

20 oC

2 oC

28 days

≥ 15

≥ 12

Pull-out resistance

≤ 0.6 mm displacement at 75 kN load

(EN 1881)

Shrinkage

Autogenous shrinkage:

Age

mm/m

after 7 days

- 0.0146

after 94 days

- 0.0455

after 365 days

+ 0.0006

Capillary absorption

≤ 0.05 kg/m2.h-0.5

(EN 13057)

Ring test

no cracking after 180 days

Splitting tensile strength

Age

20 oC

after 28 days

≥ 8 N/mm2

Results of 100 x 200 mm cylinders

Application

Application Information

Mixing ratio

Approx. 75 lt / 1000 kg powder (min. 70 lt- max. 80 lt)

Layer thickness

25 - 600 mm

Material temperature

0 °C min. / +30 °C max. (grouted connection)

Ambient air temperature

0 °C min. / +30 °C max. (grouted connection)

Substrate temperature

0 °C min. / +30 °C max. (grouted connection)

Pot Life

≥ 4 hours

Setting time

≤ 10 hours
Consumption

Consumption

Approximately 2.2 kg powder is needed for 1 litre of mixed mortar. Or, 1000 kg powder will yield approximately 450 to 465 litre of mixed grout.
Application steps

NOTES ON INSTALLATION

  • SikaGrout®-9500 has been especially formulated for use in specific applications. As such SikaGrout®-9500 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.

  • SikaGrout®-9500 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.

  • Independent test reports are available on request.

 

CLEANING

Tools and spillages can be cleaned with water while SikaGrout®-9500 is still uncured. Once hardened, the material can only be removed mechanically.