Volumetric Concrete Mixer – Pros and Cons

Volumetric concrete mixers fill a gap in the market for flexible short run concrete supply. Like any equipment there are volumetric concrete mixer pros and cons and misinformation in the marketplace.

Five myths dispelled

Myth #1: Volumetric concrete mixing is a new and unproven technology

  • 1965 – Patent granted for the Concrete-Mobile
  • Over 2,500 Concrete-Mobiles were produced by 1980
  • Over 10,000 Volumetric Concrete Mixers produced by 2000
  • In use in every state in the United States, and over half of all countries in the world
  • Used by the U.S. Military, many State and Local Departments of Transportation and many Cities


Myth #2: Volumetric concrete mixers cannot match the accuracy and consistency of a batch plant

  • Same tolerances on all materials
  • More restrictions on ready mix as water-cement contact occurs at the plant, not at the job site
  • ACI 304.6R “Guide for the Use of Volumetric-Measuring” VMMB (NRMCA) approval and specification
  • One significant factor is jobsite control of proportioning and mixing


Myth #3: Volumetric concrete mixers don’t produce “good concrete” (e.g. not enough mix time)

  • Many examples of quality concrete:
    • Bridge deck overlays
    • Airport runway repairs
    • Structural elements
    • Pool builders, Soil retention
    • Pervious concrete
    • Light weight concrete by foam and lightweight aggregates


Myth #4: Volumetric concrete mixers cannot handle large production pours or projects

  • A single piece of equipment can be reloaded at the jobsite – No time or fuel wasted in transit
  • Volumetric equipment is capable of production rates in excess of 69 cubic metres per hour
  • Many examples of large scale projects done with volumetrics
  • Common volumetric model on the market today will produce .76 of cubic metre of concrete per minute


Myth #5: Volumetric mixers are too complex to operate and have too long a learning curve

  • Like other jobsite equipment, proper training of operators is a must
  • An operator of a volumetric mixer must have more training than a typical barrel mixer operator – “batch plant on wheels”
  • We offer extensive training in the operation, maintenance and calibration of their equipment
  • Typical “day-to-day” operation is straight-forward and repeatable.