SikaGrind®-455 GNT
GRINDING AID FOR CEMENT PRODUCTION
SikaGrind®-455 GNT is a non-chloride based, cost effective grinding aid for portland cement and other hydraulic cements. It is designed to improve the efficiency of the grinding process and can reduce the energy needed for grinding clinker.
- Increases production rate (tons per hour)
- Improves grinding efficiency
- Improves separator efficiency due to improved dispersion
- Allows for a faster achievement of the desired cement fineness
- Reduces particle fraction > 32μ of the ground cement
- Reduces re-agglomeration of the cement particles
- Reduces the accumulation of material on grinding equipment (grinding balls and mill)
- Reduces relative energy consumption per ton of cement
- Facilitates product handling and minimizes “plugging” issues due to improved flow characteristics
- Reduces handling costs especially on pneumatic conveying systems
- Facilitates the discharge of silos
- Improves self-levelling of the cement in the silo
- Improves cement granulometry (reduced quantity of “over-milled” particles)
Usage
SikaGrind®-455 GNT is used in cement mills, during the grinding process of the clinker.Advantages
SikaGrind®-455 GNT provides the following advantages in the cement production:- Increases production rate (tons per hour)
- Improves grinding efficiency
- Improves separator efficiency due to improved dispersion
- Allows for a faster achievement of the desired cement fineness
- Reduces particle fraction > 32μ of the ground cement
- Reduces re-agglomeration of the cement particles
- Reduces the accumulation of material on grinding equipment (grinding balls and mill)
- Reduces relative energy consumption per ton of cement
- Facilitates product handling and minimizes “plugging” issues due to improved flow characteristics
- Reduces handling costs especially on pneumatic conveying systems
- Facilitates the discharge of silos
- Improves self-levelling of the cement in the silo
- Improves cement granulometry (reduced quantity of “over-milled” particles)
Packaging
205 L (54 US gal.) drum
1040 L (275 US gal.) IBC
Bulk delivery
Colour
Liquid / Clear yellow
Product Details
APPROVALS / CERTIFICATES
SikaGrind®-455 GNT meets ASTM C465 requirements.
Shelf Life
1 year in original unopened container.
Storage Conditions
Store dry at temperatures between 5 °C and 27 °C (40 °F - 80 °F). Condition product above -6 °C (20 °F). Protect from direct sunlight.
Specific Gravity
1.155 +/- 0.015
pH-Value
6.00 +/- 2.00
Application
Mixing
Mixing
SikaGrind®-455 GNT should be dispensed as received. SikaGrind®-455 GNT must be accurately dispensed to ensure consistent results. Proper dispensing equipment with adjustable flow rates should be used for optimum performance.SikaGrind®-455 GNT may be added onto the clinker conveyor belt or sprayed into the mills first compartment. Sika representative is available to assist with recommendations on your mill system.
Note: The end of the dispensing tube/hose shall be checked and cleaned periodically to ensure it is not blocked and amount of grinding aid is added in proper dosage rates.
Recommended Dosage
The dosage rate of SikaGrind®-455 GNT will depend on desired characteristics of each type of cement. Dosage rates typically range from 0.02 % to 0.08 % by weight of cement for Types GU & MS cements and from 0.03 % to 0.09 % by weight of cement for Type HE cements. The optimum dosage rate should be determined during full-scale cement mill tests. A trained Sika representative is available to assist in dosage calculations and mill test evaluations.
