Product Data Sheet Show all documents

SikaGrout®-9400

(former MFlow 9400)

Ultra-high strength, cement based grout for onshore wind turbine installations

SikaGrout®-9400 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 as well as a high modulus of elasticity. The product exhibits increased fatigue resistance. The latest binder packing models and applied nanotechnology produce a grout with superior technical performance, exceptional rheological properties, and, uniquely, extended open times.

  • Ultra-high compressive strength: above highest class of EN206, i.e. > C100/115
  • 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 ≥ 70 MPa @ 24hrs at 20°C
  • No segregation or bleeding to ensure consistent final physical performance and to prevent pump blockages
  • Extended pot life
  • Can be pumped into complex areas or areas inaccessible to conventional grouting methods
  • Dust reduced for ease of handling
  • Cement based
  • Low chromate  
Product Data Sheet Show all documents

Usage

SikaGrout®-9400 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
  • Onshore turbines where ultra-high final strengths are required
  • Grouting in a wide temperature range
  • Anchoring anchor bolts of wind turbine towers
  • All void filling from 25mm to 600mm (under tower flange) 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: above highest class of EN206, i.e. > C100/115
  • 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 ≥ 70 MPa @ 24hrs at 20°C
  • No segregation or bleeding to ensure consistent final physical performance and to prevent pump blockages
  • Extended pot life
  • Can be pumped into complex areas or areas inaccessible to conventional grouting methods
  • Dust reduced for ease of handling
  • Cement based
  • Low chromate  

Packaging

SikaGrout®-9400 is supplied in 25 kg bags and special 500 kg big bags

Colour

Light grey powder

Product Details

Sustainability / Certifications / Approvals

CERTIFICATES AND TEST REPORTS

  • Initial type test and early strength development of grout material – verification by Applus Laboratories

  • Tests on fresh and hardened grouting mortar - verification by MPA Hannover

  • 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 

  • Declaration of freeze and thaw with de-icing salts   performance according to EN 13687-1 

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

  • Investigations on the fatigue behavior – verification by Leibniz Universität Hannover

 
Product Information

Shelf life

12 months from date of production

Storage conditions

The product must be stored in original, unopened and undamaged packaging in dry conditions at temperatures between +5 °C and +35 °C. Always refer to the packaging. Refer to the current Safety Data Sheet for information on safe handling and storage.

Density

Approximately 2.4 gr/cm3

Maximum grain size

Dmax: ~4 mm
Technical Information

Compressive strength

Age (Conditioned at 20 oC)

N/mm2

1 day

≥ 70

7 days

≥ 120

28 days

≥ 130

Results of 40 x 40 x 160 mm specimens

Compressive strength class

> C100/115

Characteristic compressive strength:

28 days (Conditioned at 20 oC)

≥ 135 N/mm2

Results of 150 x 300 mm cylinders

Early compressive strength:

at 2 oC - (24 / 48 hours)

at 20 oC - (16 / 24 hours)

≥ 2/ 35 N/mm2

 ≥ 45 / 75 N/mm2

Early strength class

A

Results of 40 x 40 x 160 mm prisms

Early strength class is defined in accordance with DAfStb Guideline

Exposure classes:

XO, XC4, XD3, XS3, XF4, XA2, WF

(EN 206)

Modulus of elasticity in compression

≥ 48.000 N/mm2

(EN 1048-5)

Poisson ratio: 0.18

Flexural-strength

Age (Conditioned at 20 oC)

N/mm2

28 days

≥ 18

Pull-out resistance

≤ 0.6 mm

Displacement at 75 kN load

(EN 1881)

Shrinkage

< 0.4 mm/m

Shrinkage class: SKVM 0 According to DAfStb Guideline

(EN 12617-4)

Expansion

> 0,1 % volume after 24 hours

Tensile adhesion strength

> 2 N/mm2

(EN 1542)

Resistance to fire

A1 (fl)

 

Application

Application Information

Mixing ratio

Temperatures2-15 oC16-25 oC26-30 oC31-35 oC36-40 oC
lt / 25 kg

1.70

1.75 ± 0.05

1.85 ± 0.05

1.95 ± 0.05

2.15 ± 0.05

lt / 500 kg

34.0

35.0 ± 1.0

37.0 ± 1.0

39.0 ± 1.0

43.0 ± 1.0

Layer thickness

25 - 600 mm

Material temperature

+2 °C min. / +40 °C max

Ambient air temperature

+2 °C min. / +40 °C max

Substrate temperature

+2 °C min. / +40 °C max

Pot Life

180 minutes at 20 oC

Pot life depends on temperature Note: Pot life will be shorter at higher temperatures. Pot life will be longer at lower temperatures.

Flowability

Flow channel

> 650 mm

Slump cone

> 300 mm

Flow class 

f2

Flow class is defined in accordance with the DAfStb Guideline

Setting time

9 hours
Consumption

Consumption

2.2 kg powder for 1 litre of mixed mortar
Application steps

EQUIPMENT

Mixer type

Pan mixer

Mixing time

Approximately 6 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®-9400 must be mixed using suitable grout mixing equipment combined with an agitator for large-volume mixing applications. The volume capacity of equipment must be appropriate for the amount of material being mixed to allow continuous operation. Equipment trials should be carried out to ensure that the product can be mixed satisfactorily before full-scale project application. Add most of the required water into the mixer, then slowly add the grout material. Mix for 4 minutes until a homogeneous mortar is achieved. Add the remaining water and continue mixing for at least another 2 minutes, until the desired fluid or flowable consistency is obtained. Use potable water only. Do not add more water than the maximum specified.

IMPORTANT

Do not use continuous mixing equipment. The product is not designed for processing with 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.

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