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SikaGrout®-3170 R

High early strength onshore wind turbine engineered grout

SikaGrout®-3170 R is a  1-part, cementitious grout which achieves high early and final strengths. Specifically designed for onshore concrete wind turbine joint connections between concrete precast elements.

  • Ready to use, just add water
  • Good flowability in vertical and horizontal orientation
  • Suitable for pumping
  • Self-compacting properties
  • Low shrinkage
  • Expansion compensated
  • Resistant to freeze-thaw according to CDF
  • Fast early strength development even at low temperatures
  • High final strength
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Areas of Application

  • Filling horizontal joints between tower base and foundation
  • Vertical and horizontal joints between precast concrete elements
 

Advantages

  • Ready to use, just add water
  • Good flowability in vertical and horizontal orientation
  • Suitable for pumping
  • Self-compacting properties
  • Low shrinkage
  • Expansion compensated
  • Resistant to freeze-thaw according to CDF
  • Fast early strength development even at low temperatures
  • High final strength

Packaging

25 kg bag

Color

Grey powder

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

  • Flow dimension, Sedimentation, Shrinkage and Compressive Strength tests DafStb-Richtlinie Guideline, SikaGrout®-3170 R, Classification
  • CE Marking and Declaration of Performance to EN 1504-3 - Concrete repair product for structural repair.
Product Information

Composition

Cement, selected aggregates and special additives

Shelf life

12 months from date of production

Storage conditions

Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C. Always refer to packaging.

Maximum grain size

Dmax: 5 mm

 
Technical Information

Compressive strength

Compressive Strength class: C70/85

(EN 206-1)

Early strength: ≥ 40 N/mm2 after 24 hours (class A) in 100 mm cube

(DafStb Guideline)

Temperature1

Time

Compressive Strength

+5 °C

8 hours

>15 N/mm2

+5 °C

24 hours

>30 N/mm2

+5 °C7 days>60 N/mm2

Temperature1

Time

Compressive Strength

+20 °C

5 hours

>15 N/mm2

+20 °C

25 hours

> 40 N/mm2

+20 °C

7 days

> 70 N/mm2

1  Air and Concrete Temperature

For exposure classes: X0, XC 1-4, XD 1-3, XS 1-3, XF 1-3, XA 1-2/ WA according to the EN 206-1

Modulus of elasticity in compression

> 30 000 N/mm2

(EN 13412)

Shrinkage

Shrinkage class SVKM 0 according to DAfStb Guideline

Expansion

> 0,1 % volume after 24 hours

Application

Application Information

Mixing ratio

~3,1–3,25 litres of water for 25 kg of powder at temperatures between +5 °C and +30 °C.

Fresh mortar density

~2,5 kg/l

Layer thickness

min. 20 mm / max. 200 mm

Flowability

a3 (≥ 700 mm diameter)

(DAfStb 2011)

Ambient air temperature

0 °C min.

Substrate temperature

0 °C min.

Pot Life

~30–60 minutes (depending on the ambient and concrete substrate temperature) at temperatures of the concrete between +5 °C to +30 °C
Consumption

Yield

25 kg of powder yields approximately 11,0 litres of mortar
Application steps

MIXING

Forced action pan mixer

Pour the correct amount of water into a suitable clean mixing container. While stirring slowly add the complete bag of powder into the water. Mix continuously for 3 minutes to achieve a uniform and lump free smooth consistency. Do not add more water than the maximum specified.

Grout mixer

SikaGrout®-3170 R must be mixed using suitable grout mixing equipment combined with agitator for continuous large volume mixing. Volume capacity of equipment should be applicable to the volume of material being mixed for a continuous operation. Equipment trials should be considered to ensure product can be mixed satisfactory.

Pour the minimum water ratio in the correct proportion into the grout mixer. While stirring the water, slowly add the powder to the water. Add more water within the mixing time up to the maximum allowed until the desired consistency is achieved.

Mix continuously for a minimum of 3 minutes. For larger mixes the mixing time must be extended to approximately 5 minutes or as necessary until the grout achieves a lump free smooth consistency. Do not add more water than the maximum specified.

APPLICATION

Pre-wetting

The prepared concrete substrate must be thoroughly saturated with clean water for a recommended 4–8 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

Apply the material shortly after mixing to take advantage of the expansion properties. Immediately after mixing pour or pump the mixed grout into the header box or hopper ensuring continuous grout flow during the complete grouting operation to avoid trapping air.

For large volume placement, grout pumps are recommended. Equipment trials should 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 using warm water to assist with achieving strength gain and maintaining physical properties.

CURING TREATMENT

Protect the fresh material from premature drying and cracking using an appropriate curing method e.g. curing compound, moist geo-textile membrane, hessian, polythene sheet etc. In cold weather apply insulated blankets to maintain a constant temperature to prevent surface damage from freezing and frost.

CLEANING OF EQUIPMENT

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