Product Data Sheet Show all documents

SikaGrout®-9200

(former MFlow 9200)

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

SikaGrout®-9200 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. The product exhibits increased ductility, fatigue and impact resistance. Latest best binder packing models and applied nanotechnology produces a grout with superior technical performance, exceptional rheological properties, and uniquely, extended open times.  

  • Ultra-high compressive strength: > C100/115 according to EN 206-1
  • Ultra-high modulus for exceptional stiffening properties
  • Excellent fatigue resistance. 
  • Quick return to service and removal of temporary supports due to high early strength build-up ≥ 75 MPa @ 24hrs at 20°C
  • No segregation or bleeding to ensure consistent final physical performance and to prevent pump blockages
  • Extended pot life of ≥ 2 hours
  • Can be pumped into complex areas or areas inaccessible to conventional grouting methods
  • Specially graded sands and exceptional flow and low friction increases pump output, reduces installa-tion times and costs as well as reducing pump pres-sures and wear
  • Dust reduced for ease of handling
  • Cement based
  • Low chromate
Product Data Sheet Show all documents

Usage

SikaGrout®-9200 has been especially formulated for:
  • Grouting of wind turbine installations, that are installed using pre-stressing techniques e.g. base plate grouting of onshore wind turbines
  • Installations where excellent fatigue resistance is required
  • Grouting under very harsh conditions, e.g. temperatures as low as 2°C.
  • Anchoring anchor bolts of wind turbine towers
  • All void filling from 25mm to 600mm where high strength, high modulus, high ductility is important  
Contact the Technical Department of your local Sika office regarding any application or dimensions required not mentioned here.

Advantages

  • Ultra-high compressive strength: > C100/115 according to EN 206-1
  • Ultra-high modulus for exceptional stiffening properties
  • Excellent fatigue resistance. 
  • Quick return to service and removal of temporary supports due to high early strength build-up ≥ 75 MPa @ 24hrs at 20°C
  • No segregation or bleeding to ensure consistent final physical performance and to prevent pump blockages
  • Extended pot life of ≥ 2 hours
  • Can be pumped into complex areas or areas inaccessible to conventional grouting methods
  • Specially graded sands and exceptional flow and low friction increases pump output, reduces installa-tion times and costs as well as reducing pump pres-sures and wear
  • Dust reduced for ease of handling
  • Cement based
  • Low chromate

Packaging

SikaGrout®-9200 is supplied in 25 kg bags and special 500 kg big bags.

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • Gutachen über die Anwendung des Ermüdungsnachweises nach CEB-FIP Model Code 90 auf den Vergussmörtel SikaGrout®-9200 für Druckschwellbeanspruchung

  • Gutachen über die Anwendung des Ermüdungsnachweises nach fib-Model Code 2010 (Entwurf) auf den Vergussmörtel SikaGrout®-9200 bei Druckschwellbeanspruchung

  • Certification of conformity according to the “DAfStb-Richtlinie – Herstellung und Verwendung von zementgebundenem Vergussbeton und Vergussmörtel“ (QDB)

  • Declaration of performance according to EN 1504-6

  • Pull-out resistance tests according to DIN EN 1881 in wet concrete 
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. 

Maximum Grain Size

Dmax: ~4 mm

Density

Approximately 2.4 gr/cm3
Technical Information

Compressive Strength

Age

N/mm2

1 day

≥ 80 

7 days

≥ 115 

28 days

≥ 135 

Compressive strength class

>C100/115

(EN 206-1)

Early compressive strength:

at 2 oC - 24 / 48 hours

at 20 oC - 16 / 24 hours

≥ 3 / 42 N/mm2

 ≥ 45 / 80 N/mm2

(According DAfStb VeBMR Rili)

Early strength class:

A

(According to
DAfStb VeBMR Rili)

Exposure classes:

XO, XC4, XD3, XS3, XF4, XA2, WF(DIN EN 206-1 / DIN
1045-2)

Modulus of Elasticity in Compression

≥ 45.000 N/mm2

(EN 1048-5)

Flexural Strength

≥ 18 N/mm2

(EN 196-1)

Tensile adhesion strength

To concrete:

> 2 N/mm2

(EN 1542)

After freeze / thaw:

> 2 N/mm2

(EN 13687-1)

Pull-Out Resistance

≤ 0.6 mm

(EN 1881 - displacement at 75 kN load)

Shrinkage

Shrinkage class:

SKVM 0(according to
DAfStb DAfStb
VeBMR Rili)

Expansion

> 0,1 % volume after 24 hours

Resistance to fire

A1 (fl)(EN13501-1)
 

Application

Application Information

Layer Thickness

25 - 600 mm

Flowability

Flow channel

680 mm

Slump cone

295 mm

Flow class

f2

According to DAfStb VeBMR Rili

Product Temperature

+2 °C min. / +35 °C max

Ambient Air Temperature

+2 °C min. / +35 °C max

Mixing Ratio

Temperatures

2-15 oC

16-25 oC

26-30 oC

31-35 oC

lt / 25 kg

1.70

1.75 ± 0.05

1.85 ± 0.05

1.95 ± 0.05

lt / 500 kg

34.0

35.0 ± 1.0

37.0 ± 1.0

39.0 ± 1.0

Substrate Temperature

+2 °C min. / +35 °C max

Pot Life

≥ 2 hours

Setting time

9 hours
Consumption

Consumption

2.2 kg powder for 1 litre of mixed mortar
Application steps

NOTES ON INSTALLATION

  • To avoid cracking of exposed surfaces, protect from direct sun and, or strong wind.

  • Use only on clean, sound substrate.

  • The substrate must be free of ice.

  • Do not exceed water addition.

  • Protect freshly applied material immediately.

  • Keep exposed surfaces to a minimum.

  • To avoid cracking in warm temperatures keep bags cool & use cold water for mixing.

  • Do not use vibrating pokers.

  • Do not use continuous mixing equipment.

  • Pour or pump from one side only.

  • Avoid exposing surfaces during rainfall and prior to final set.

EQUIPMENT

Mixer type

Pan mixer

Mixing time

Approximately 5 minutes

Application method

One continuous pour

SUBSTRATE QUALITY

Concrete

The concrete must be structurally sound, thoroughly clean, free from oil, grease, dust, loose material, surface contamination and materials which will impair the grout flow or reduce adhesion strength. Laitance, delaminated, weak, damaged and deteriorated concrete and where necessary sound concrete must be removed by suitable mechanical preparation as directed by the engineer or supervising officer. Any pockets or holes for structural fixings must also be cleaned of all debris.

Shutter Formwork

Where formwork is to be used, all formwork must be of adequate strength, treated with release agent and sealed to prevent leakage of pre-wetting water and grout. Ensure formwork includes outlets for removal of the pre-soaking water or use vacuum extraction equipment to remove water.

MIXING

Grout mixer

SikaGrout®-9200 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. Note: Do not use continuous mixing equipment.

APPLICATION

Strictly follow installation procedures as defined in method statements, application manuals and working instructions which must always be adjusted to the actual site conditions.

Pre-wetting

The prepared concrete substrate must be thoroughly saturated with clean water for a recommended 12 hours before application of the grout. The surface must not be allowed to dry within this time. Prior to application of the grout, all water must be removed from within formwork, cavities or pockets and the final surface must achieve a dark matt appearance (saturated surface dry) without glistening.

Placing: Grout pump application

For large volume placement, grout pumps are recommended. Equipment trials must be considered to ensure product can be pumped satisfactory.

Surface finishing

Finish exposed grout surfaces to the required surface texture as soon as the grout has started to stiffen. Do not add additional water on the surface. Do not over work surface as this may cause surface discolouration and cracking. After the grout has initially hardened, remove formwork and trim edges while concrete is ‘green’.

Cold weather working

Consider storing bags in a warm environment and using warm water to assist with achieving strength gain and maintaining physical properties.

Hot weather working

Consider storing bags in a cool environment and using cold water to assist with controlling the exothermic reaction to reduce cracking and maintaining physical properties.

CURING TREATMENT

Protect exposed grout surfaces after finishing (immediately after levelling) from premature drying and cracking by curing under water for at least 72 hours. In cold weather apply insulated blankets to maintain a constant temperature to prevent surface damage from freezing and frost.

 

CLEANING OF TOOLS

Clean all tools and application equipment with water immediately after use. Hardened material can only be mechanically removed.

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