SikaGrind®-721
GRINDING AID AND QUALITY IMPROVER FOR THE PRODUCTION OF CEMENT
SikaGrind®-721 is a liquid additive with strength-enhancing properties. SikaGrind®-721 has been specifically developed to obtain cements with strongly increased early and final strength.
- Less accumulation of material on grinding equipment (grinding balls and mill)
- Higher efficienty of the plants (tons per hour) due to reduced grinding time per ton
- Higher separator efficiency due to improved dispersion
- Easier achievement of the desired cement fineness
- Cost savings due to lower power consumption per ton
- Increased early and final strength
- Improved powder flow characteristics and easier discharge of silos
Usage
SikaGrind®-721 is used in the grinding of cement to:- Increase production rate
- Increase early and late strength of cement
Advantages
SikaGrind®-721 provides the following advantages in the cement production:- Less accumulation of material on grinding equipment (grinding balls and mill)
- Higher efficienty of the plants (tons per hour) due to reduced grinding time per ton
- Higher separator efficiency due to improved dispersion
- Easier achievement of the desired cement fineness
- Cost savings due to lower power consumption per ton
- Increased early and final strength
- Improved powder flow characteristics and easier discharge of silos
Packaging
1040 L IBC
Bulk delivery upon request
Colour
Liquid / Clear yellowish
Product Details
ENVIRONMENTAL INFORMATION
Conformity with LEED®v4 MR Credit (Option 1): Building Product Disclosure and Optimization – Environmental Product Declarations
Shelf Life
1 year in original unopened container.
Storage Conditions
Store dry, at temperatures between +5 °C and +35 °C (41 °F and 95 °F). Protect from freezing, direct sunlight and contamination.
Note: When delivered in bulk, the tanks and equipment used must be free from contaminants.
Density
1.047
Viscosity
20 to 50 Cps
pH-Value
10.5 to 12.5
Application
Compatibility
Cements treated with SikaGrind®-721 are compatible in concretes produced with all commercial admixtures, including air entrainers, water reducers, retarders and superplasticizers. The performance of concrete admixtures are not adversely affected by the use of SikaGrind®-721.
Recommended Dosage
Typical dosage rates of SikaGrind®-721 are between 0.2-0.5 kg per tonne of cement (0.02-0.05 % 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®-721 must be accurately dispensed.
