Profession asphalt plant operator

Asphalt plant operators extract raw materials such as sand and stones and operate mobile equipment for their transport to the plant. They tend automated machines to crush and sort out stones, and to mix the sand and stones with asphalt cement. They take samples to check the quality of the mix and arrange for its transport to the construction site.

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Personality Type

  • Realistic / Conventional


  • Asphalt mixes

    The properties, advantages and disadvantages of asphalt mixes such as Marshall and Superpave mixes and the way they are best applied.

  • Types of asphalt coverings

    Different types of asphalt covering, based on their bitumen content and composition. The strengths, weaknesses, and price points of each type. Special properties such as porosity, resistance to skidding and noise characteristics.

  • Composite materials

    The properties of different materials developped in a laboratory, their usage per type of products, and how to create them.


  • Set up the controller of a machine

    Set up and give commands to a machine by dispatching the appropriate data and input into the (computer) controller corresponding with the desired processed product.

  • Operate raw mineral size reduction equipment

    Operate equipment used to reduce the size of raw minerals to prepare it for further processing. Work with gyrotary and jaw crushers, and roll, ball and autogenous mills.

  • Conform to health and safety regulations

    Carry out all work in accordance with relevant environmental and health and safety legislation, risk assessment requirements and company policies. Take the necessary health and safety precautions during work including posture the body well, safely operate tools and machinery, and wear the right clothes and protection for the climate.

  • Segregate raw materials

    Segregate into batches the raw materials to be further processed.

  • Operate raw mineral separation equipment

    Operate a variety of machinery used to separate raw mineral for further processing based on size of particles or chemical composition. Work with screens, flotation cells, spirals, jigs, drums and cyclones.

  • Control temperature

    Measure and adjust temperature of a given space or object.

  • Feed raw material into plant machinery

    Insert raw materials, chemicals and processing agents into plant machinery.

  • Monitor automated machines

    Continuously check up on the automated machine's set-up and execution or make regular control rounds. If necessary, record and interpret data on the operating conditions of installations and equipment in order to identify abnormalities.

  • Prepare raw materials

    Prepare and measure the basic materials that are needed to produce goods and finished products.

  • Weigh materials

    Weigh materials and products, record weight and other relevant data on tags or labels.

  • Record production data for quality control

    Keep records of the machine's faults, interventions and irregularities for quality control.

  • Supply machine

    Ensure the machine is fed the necessary and adequate materials and control the placement or automatic feed and retrieval of work pieces in the machines or machine tools on the production line.

  • Tend asphalt mixing machine

    Tend the machines which mix asphalt solution feeding it with the already processed minerals, bitumen and additives according to the formula.

Optional knowledge and skills

follow environmental protection standards stack packaged items report defective manufacturing materials construction industry ensure compliance with environmental legislation record test data tend packaging machines excavation techniques transport construction supplies collect samples for analysis monitor stock level check mixer capability keep records of work progress load bulk trucks material mechanics clean equipment perform product testing drive mobile heavy construction equipment write batch record documentation work ergonomically perform machine maintenance manage delivery of raw materials operate concrete mixer truck operate heat treatment furnace

Common job titles

  • Asphalt plant operator
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