Product Data Sheet Safety Data Sheet Show all documents

SikaGrind®-299 (TH)

Grinding aid and quality improver for the production of cement and supplementary cementitious materials

SikaGrind®-299 (TH) is a liquid additive to allow easier grinding and quality enhancement of all types of cement and supplementary cementitious materials. SikaGrind®-200 has been specifically developed to obtain cements with increased early strengths.

SikaGrind®-299 (TH) is a very effective grinding aid with the following characteristics:
  • Neutralisation of electrical charges on the surface of the cement particles
  • Reduced agglomeration of ground cement particles (better dispersion)
  • Less coating (accumulation of material) on grinding media and mill internals
  SikaGrind®-299 (TH) provides the following advantages in the cement production:
  • Higher mill output (tons per hour)
  • Higher separator efficiency
  • Easier achievement of the desired fineness (specific surface, sieve residue)
  • Cost savings due to a lower power consumption per ton
  • Easier handling and minimized problems with “plugging” due to improved flow characteristics
  • Improved self-levelling of the cement in the silo
SikaGrind®-299 (TH) gives the following advantages to the finished cement:
  • Easier discharge of the silos
  • Optimum cement granulometry (reduced quantity of “over-milled” particles)
  • Increased early strengths
  • Allows economic cement design with clinker replacements
Product Data Sheet Safety Data Sheet Show all documents

Usage

SikaGrind®-299 (TH) is used in the grinding of cement to:
  • Increase the production rate
  • Improve the efficiency of the mill and separator
  • Increase the early strength of cement

Advantages

SikaGrind®-299 (TH) is a very effective grinding aid with the following characteristics:
  • Neutralisation of electrical charges on the surface of the cement particles
  • Reduced agglomeration of ground cement particles (better dispersion)
  • Less coating (accumulation of material) on grinding media and mill internals
  SikaGrind®-299 (TH) provides the following advantages in the cement production:
  • Higher mill output (tons per hour)
  • Higher separator efficiency
  • Easier achievement of the desired fineness (specific surface, sieve residue)
  • Cost savings due to a lower power consumption per ton
  • Easier handling and minimized problems with “plugging” due to improved flow characteristics
  • Improved self-levelling of the cement in the silo
SikaGrind®-299 (TH) gives the following advantages to the finished cement:
  • Easier discharge of the silos
  • Optimum cement granulometry (reduced quantity of “over-milled” particles)
  • Increased early strengths
  • Allows economic cement design with clinker replacements

Packaging

1,000 kg IBC or 200 kg non-returnable plastic/steel drum upon request

Product Details

Product Information

Composition

Aqueous blend of minerals and polymers

Shelf life

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.

Density

1.150 - 1.180 kg/L (at +25°C)

Application

Application Information

Compatibility

Cements treated with SikaGrind®-299 (TH) 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®-299 (TH).

Dispensing

SikaGrind®-299 (TH) is added into the grinding mill (first or second compartment), onto the clinker feeding channel or sprinkled / dropped onto the clinker (raw material) on the conveyor belt. Suitable dosage pumps with adjustable flow rates should be used for accurate dosing.

Note: Periodically, the end of the additive tube should be checked to ensure, that it is not blocked with cement clinker / dust.
Consumption

Recommended Dosage

Typical dosage rates of SikaGrind®-299 (TH) are between 0.3 – 1.0 kg per ton of cement (0.03% - 0.10% of total weight = cement clinker + additions).The optimum dosage, which changes according to the properties of each clinker source, type of cement and other plant variables, should be determined in Plant trials according to the desired properties of the cement.

For consistent results, SikaGrind®-299 (TH) must be accurately dispensed.

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