Product Data Sheet Show all documents

SikaGrind®-1820 NG

Efficient grinding aid and quality improver for the production of cement

SikaGrind® 1820 is a chloride free liquid cement additive to allow easier grinding of cement and enhance the quality of all types of cement.
SikaGrind® 1820 has been specifically developed to obtain cements with increased early and final strengths. SikaGrind® 1820 is powered by Sika® ViscoCrete® to optimize the efficiency of modern separators and cement mills.

SikaGrind® 1820 is a very effective dispersant with
the following characteristics:
  • Neutralisation of electrical charges on the surface of the cement particles
  • Separation of the cement particles
SikaGrind® 1820 provides the following advantages in
the cement production:
  • Higher efficiency of the plants (tons per hour) due to reduced grinding time per ton
  • Higher separator efficiency due to improved dispersion
  •  Faster achievement of the desired cement fineness
  • Reduced particle fraction > 32μ of the ground cement
  • Reduced re-agglomeration of the cement particles
  • Less accumulation of material on grinding equipment(grinding balls and mill)
  • 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® 1820 gives the following advantages to
the finished cement :
  • Reduced handling costs especially on pneumatic conveying systems
  • Reduced risk of hydration in the silo
  • Easier discharge of the silos
  • Optimum cement granulometry (reduced quantity of “over-milled” particles)
  •  Increased early strengths
  • Improved final strengths
  • Allows economic cement design with clinker replacements
  • Reduced water demand
  • Uniform air entrainment in the stated dosage range
  • Consistent setting times
Product Data Sheet Show all documents

Usage

SikaGrind® 1820 is used in the grinding of cement to:
  • Improve the production rate of the cement grinding system
  • Improve the efficiency of the mill and separator
  • Enhance the quality of the cement

Advantages

SikaGrind® 1820 is a very effective dispersant with
the following characteristics:
  • Neutralisation of electrical charges on the surface of the cement particles
  • Separation of the cement particles
SikaGrind® 1820 provides the following advantages in
the cement production:
  • Higher efficiency of the plants (tons per hour) due to reduced grinding time per ton
  • Higher separator efficiency due to improved dispersion
  •  Faster achievement of the desired cement fineness
  • Reduced particle fraction > 32μ of the ground cement
  • Reduced re-agglomeration of the cement particles
  • Less accumulation of material on grinding equipment(grinding balls and mill)
  • 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® 1820 gives the following advantages to
the finished cement :
  • Reduced handling costs especially on pneumatic conveying systems
  • Reduced risk of hydration in the silo
  • Easier discharge of the silos
  • Optimum cement granulometry (reduced quantity of “over-milled” particles)
  •  Increased early strengths
  • Improved final strengths
  • Allows economic cement design with clinker replacements
  • Reduced water demand
  • Uniform air entrainment in the stated dosage range
  • Consistent setting times

Packaging

1000 kg IBC

200 lts drum

Bulk on request

Colour

Brown Liquid

Product Details

Product Information

Composition

Blend of amines and polymers

Shelf life

At least 12 months in undamaged, unopened and sealed original contain-
ers when stored at temperatures between +5°C and +35°C. Protect from
frost, direct sunlight and contamination.

Storage conditions

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

Density

1.04 +/- 0.01 kg/l (at +20°C)

pH-Value

11.0 +/- 1

Application

Application Information

Dispensing

SikaGrind® 1820 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.

Compatibility

Cements treated with SikaGrind®1820 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®1820.
Consumption

Recommended dosage

Typical dosage rates of SikaGrind® 1820 are between 0.3 - 0.6 kg per
tonne of cement (0.03% - 0.06% 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® 1820 must be accurately dispensed.

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