Product Data Sheet Show all documents

SikaGrind®-272

Grinding Aid and Quality Improver for the production of cement and slag

SikaGrind®-272 is a chloride free, cement and slag liquid additive.

SikaGrind®-272 is a dispersant with the following characteristics:
  • Chemical activation of the hydration process (cement)
  • Neutralisation of electrical charges on the surface of the particles
  • Separation of the cement or slag particles
SikaGrind®-272 provides the following advantages in the cement and slag production:
  • Enhanced grinding performance of the mill
  • Higher separator efficiency
  • Higher mill output (tons per hour)
  • Reduced relative power consumption per ton of material
  • Easier achievement of the desired binder fineness (Blaine, particle fraction > 45µm, grain size distribution)
  SikaGrind®-272 gives the following advantages to the finished cement:
  • Reduced quantity of “over-milled” particles in the binder grading
  • Increased strength development especially at early ages
  • Earlier set time characteristics
  • Economic cement design with clinker replacements
Product Data Sheet Show all documents

Usage

  • Increase the strength development of cement  
  • Improve the production rate of the cement and slag grinding system

Advantages

SikaGrind®-272 is a dispersant with the following characteristics:
  • Chemical activation of the hydration process (cement)
  • Neutralisation of electrical charges on the surface of the particles
  • Separation of the cement or slag particles
SikaGrind®-272 provides the following advantages in the cement and slag production:
  • Enhanced grinding performance of the mill
  • Higher separator efficiency
  • Higher mill output (tons per hour)
  • Reduced relative power consumption per ton of material
  • Easier achievement of the desired binder fineness (Blaine, particle fraction > 45µm, grain size distribution)
  SikaGrind®-272 gives the following advantages to the finished cement:
  • Reduced quantity of “over-milled” particles in the binder grading
  • Increased strength development especially at early ages
  • Earlier set time characteristics
  • Economic cement design with clinker replacements

Packaging

1000 kg IBC
Bulk deliveries

Colour

Brown  liquid

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

SikaGrind®-272 is produced under Quality management systems according to EN ISO 9001.
Product Information

Composition

Aqueous solution of amino alcohols

Shelf life

At least 12 months in undamaged, unopened and sealed original containers.

Storage conditions

Stored at temperatures between +5°C and +35°C. Protect from frost, direct sunlight and contamination.

Note: When delivered in bulk, the tanks and equipment used must be free from contaminants.

Material compatibility: Storage and transport in stainless steel or plastic containers (such as polyethylene (PE), polypropylene (PP), rigid PVC).

Density

1.07 ± 0.02 kg/l (at +20°C)

pH-Value

8.0 ± 1.0

Application

Application Information

Dispensing

SikaGrind®-272 shall be added onto the clinker feed shortly before the mill entrance or directly into the grinding mill (first or second compartment). Suitable dosage pumps with adjustable flow rates shall be used for accurate dosing.

Note: Periodically, the end of the additive tube/hose shall be checked to ensure that it is not blocked.

Compatibility

Cements treated with SikaGrind®-272 are compatible in concretes produced with all commercial admixtures including air entrainers, water reducers, retarders and superplasticizers. The performance of concrete admixtures is not adversely affected by the use of SikaGrind®-272.
Consumption

Recommended dosage

Typical dosage rates of SikaGrind®-272 are between 0.3 - 0.6 kg per ton of cement or slag (0.03% - 0.06% of total weight = cement clinker + additions or simply slag). The optimum dosage to achieve the desired characteristics shall be determined in plant trials. Influencing factors are e.g. the properties of clinker, type of cement, hardness of the slag and other plant variables. For consistent results, SikaGrind®-272 must be accurately dispensed (see the section Dispensing).

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