Cement

Cement is an essential mineral powder in the construction, prefabrication, and environmental industries. Used as a hydraulic binder in concrete mixtures, it is characterized by its extreme fineness, tendency to clog, and high abrasiveness, which require specific and robust handling solutions.

Whether stored in silos, big bags, or hoppers, the transfer of bulk cement requires a thorough understanding of its physical and chemical properties to prevent production stoppages, maintain the cleanliness of the facilities, and minimize equipment wear.

Specificities
Hygroscopicity: Yes
Abrasion: High
Clogging: Yes
Industrial Applications
Manufacture of mortars, soil stabilization, formulation of ready-mix concrete (RMC), binders for metallurgical briquettes, stabilization of toxic waste, etc.
Industry Sector
Construction, Foundry and Metallurgy, Environment
Typical behavior
  • Very fine, dense, highly volatile powder

  • Risk of buildup in elbows, hoppers, and sleeves

  • Need for anti-clogging systems (vibrators, scrapers, air nozzles

Material Details

Cement is a powder that is fine, dense, and reactive. These characteristics make it a complex material to handle in an industrial setting, particularly when transferring it from a storage location (silo, big bag, hopper) to a dosing or mixing area.

Points to keep in mind:

  • High tendency to clump: Its extremely fine texture promotes clumping, particularly in the presence of moisture or during extended retention times in equipment.

  • Significant hygroscopicity: The cement readily absorbs moisture from the ambient air, which can cause premature hardening or localized clogging.

  • Highly volatile dust: Handling it generates significant dust, which can affect the work environment and requires containment or filtration systems.

  • Abrasive behavior: Its mineral components cause gradual wear on the surfaces in contact, particularly in areas of friction or changes in direction.

  • Flow may be irregular at times: Cement can behave unpredictably depending on particle size, moisture content, drop height, or ambient vibrations.

Why are these parameters critical?

A poor understanding of how cement behaves can lead to:

  • flow interruptions (blockages, jams)

  • premature wear and tear on the equipment

  • a loss of accuracy in measurements

  • poor working conditions (dust, frequent maintenance)