Product Data Sheet Show all documents

SikaGrout®-525

(former MFlow 525)

High Flowability non-shrink cementitious precision grout

SikaGrout®-525 is a powder blend for easy production of a pourable to exceptionally fluid, slightly expansive, Portland cement grout by addition of potable water only

SikaGrout®-525 exhibits excellence in various fresh and hardened state properties: •    Excellent initial and retained fluidity.
•    Cohesion and suspension of aggregates.
•    Non-bleeding, void free bearing surface.
•    Excellent strength development.
•    Corrosion inhibition (non-chloride)
•    Controlled expansion and shrinkage compensation mechanisms.
•    Exceptional tortuous path flow.
•    Allows for easy precise placement when difficult accessible grouting is required.
 
Product Data Sheet Show all documents

Usage

SikaGrout®-525 is suitable for but not limited to the grouting of: •    Structural Columns.
•    Machine bases.
•    Holding down bolts.
•    Dowel and starter bars.
•    Bridge bearings.
•    Underpinning and repairs.
•    Filling cavities in concrete or steel sections.
 

Advantages

SikaGrout®-525 exhibits excellence in various fresh and hardened state properties: •    Excellent initial and retained fluidity.
•    Cohesion and suspension of aggregates.
•    Non-bleeding, void free bearing surface.
•    Excellent strength development.
•    Corrosion inhibition (non-chloride)
•    Controlled expansion and shrinkage compensation mechanisms.
•    Exceptional tortuous path flow.
•    Allows for easy precise placement when difficult accessible grouting is required.
 

Packaging

20kg Bags

Product Details

Product Information

Chemical Base

Cement, selected fillers and aggregates, special additives

Shelf Life

12 months from date of production

Storage Conditions

Store properly in dry conditions in undamaged and unopened original
sealed packaging

Maximum Grain Size

Dmax: 2.4 mm

Density

~2.2 kg/l (fresh density)
Technical Information

Compressive Strength

1 days

7 days

28 days

~20 MPa

~50 MPa

~70 MPa

(EN 196-1)

Tensile Strength in Flexure

Ambient temperature +24ºC

1 day

7 days

28 days

~2.0 N/mm2

~6.0 N/mm2

~8.02 N/mm2

Expansion

Free Expansion

Plastic

up to 0.5% (linear)

Hardened

up to 0.5% (linear)

Application

Application Information

Fresh mortar density

~2.3kg/l (density of fresh mortar)

Layer Thickness

Minimum 10 mm/ maximum 150 mm

Ambient Air Temperature

+5°C min. / +35°C max.

Mixing Ratio

14.4% by weight - Max. 3.6 litres of water per 20 kg bag

Substrate Temperature

+5°C min. / +30°C max.

Pot Life

~45 minutes at 24 °C
Consumption

Consumption

As a guide, ~20 kg of powder per 10 mm thickness for each m2

Yield

1 bag yields approximately ~10.7 l of mortar
Application steps

SUBSTRATE QUALITY

The concrete shall be thoroughly clean, free from dust, loose material, surface contamination and materials which reduce bond or prevent suction.

MIXING

Pour the water in the recommended proportion into a suitable mixing container. While stirring slowly, add the powder to the water. Mix with low speed (< 500 rpm) hand drill mixer to avoid entraining too much air. Mix thoroughly at least for 3 minutes until homogenous with no lumps. Mix only full bags for best results.

APPLICATION

Stand the grout for ~2-3 minutes; stir with a trowel and then pour into the prepared openings.
For more information on pouring techniques refer to Sika Method Statement

CURING TREATMENT

All exposed areas of grout should be covered immediately after placement to protect the fresh material from premature drying using an appropriate curing method e.g. curing compound, moist geotextile membrane etc.

CLEANING OF TOOLS

Clean all tools and application equipment with water immediately after use.

 

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