Concrete Dusting

What is concrete dusting?

One of the most common problems in the production of concrete is dusting! It can occur on every application and stopping this from happening is very often the dream of many manufacturers in the precast industry. Unfortunately stopping this completely isn't possible. Schepens Company can provide you the knowledge, service and product to minimize and control concrete dust so you can produce at the highest quality possible. 

     

    What are the causes?

    The main reason for concrete to dust is due to a weak surface. The weaker the surface, the more dust it creates. There are several causes that have an influence on the concrete surface and making it weak. 

    • Insufficient curing of the concrete in the forms and molds
    • Low quality materials in the concrete mix
    • Carbonation caused by O² and H²O exposure
    • Wrong application of release agent

    Concrete dust can affect your company in several ways: 

    Finished product
    An increased number of rejected end products caused by inequalities in the concrete surface due to petrified dust. Beside these visual problems it can also could lead to durability and finishing issues. 

    Moulds
    Concrete dusting requires more cleaning time and maintenance work. It will cost more to keep the moulds in perfect condition. 

    Workforce 
    Reducing the concrete dust to a minimum will contribute to a more healthier work environment.  

    Equipment
    Beside higher maintenance costs it will also have an influence on the lifespan of the equipment. Less overheated engines and broken equipment means also less down-time due to repairs and replacements

    Reduce the chance of dust formation by taking following tips and tricks in account:  

    1. Let the concrete cure properly.
    2. Avoid using additional water when finishing the fresh concrete.
    3. Do not use too much release agent on the moulds. 
    4. Use the best materials available to cast the concrete
    5. Try to minimize bleed water on top of the concrete surface.