Categories:

NIROGRIND AD4022

NIROGRIND AD4022

High Performance Cement Grinding Aid for Vertical Roller Mills

Description

NIROGRIND AD4022 is a liquid, ready-to-use, high performance cement grinding aid, specially designed for cement grinding in Vertical Roller Mills, to increase the powder flowability of the finished cement without reduction of the stability of the material bed, by reducing the polarity of the cleaved surface and the attraction forces between cement particles.

It also significantly reduces the mill vibrations, water injection at constant vibrations, pack set tendencies and increases productivity with improved quality cement.

NIROGRIND AD4022 is effective in both open circuit and closed-circuit cement mills.

It is compatible with all types of cement and complies with ASTM C465-99 as a nonharmful processing additive.

USES

  • Ordinary Portland cement
  • Blended cement with limestone, fly ash or slag.

The special characteristics of NIROGRIND AD4022 effectively activate the hydration process between cement particles and the non-reactive or reactive fillers.

For additional information on NIROGRIND AD4022 and its use in developing special performance characteristics, contact your local Nirman Chemicals Limited sales field representative.

ADVANTAGES

  • Reduces mill vibrations (30% to 50% reduction).
  • Reduces water injection (up to 50%) at constant vibrations due to better stabilization and regulation of the bed thickness.
  • Lower water addition to cement often reduces setting time and has positive effects on strengths.
  • Mineral additive rates can be increased.
  • Increase of early (24 and 48 hours) mechanical strengths of cements.
  • Increases mill production (10% to 20%) depending on the efficiency of the equipment and the characteristics of the material to be ground.
  • Reduces grinding energy costs.
  • Improves physical properties of the ground material.
  • Improves performance in both closed and open circuit systems at equal specific surface area or equal sieve residues.
  • Powder flow characteristics are improved before, during and after storage.
  • Pack set tendencies and coating are substantially reduced.
  • The risk of false set is reduced due to lower grinding temperature.
  • Cement particle size distribution is improved resulting in more thorough hydration.
  • Reduces plastic shrinkage (Initial set).
Download
Technical Support
NIRMAN CHEMICALS LIMITED provides technical advisory services for on-site assistance and guidance on mix design, optimum dosage evaluation of trials.
NIROGRIND AD4022 is water based and non-flammable.
All Technical Data Sheets are updated on regular basis; it is the user’s responsibility, to obtain the most recent issue. Field services where provided, does not constitute supervisory responsibility, for additional information contact our local NIRMAN CHEMICALS LIMITED representative.
Whilst any information contained here in is true, accurate and represents our best knowledge and experience, no warranty is given or implied with any recommendations made by us, our representatives or distributors, as the conditions of use and the competence of any labor involved in the application are beyond our control.
Search
Close this search box.