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Applied R&D in asphalt plant automation.

GA Engineering Inc. is a Canadian-incorporated engineering SME based in British Columbia. Alongside our delivery work, we are exploring how modern data tooling, machine-learning techniques, and AI-assisted methods can improve the efficiency of hot mix asphalt plants โ€” particularly around burner control, mix recipe queue planning, and energy use.

The work described below is an early-stage research direction, not a packaged offering. We are at the stage of scoping problems with operators, framing data requirements, and prototyping. We're sharing it openly because we'd like to talk to plant operators, OEMs, researchers, and funding programs interested in the same questions.

Focus areas

Where we think AI and ML can help.

Each of these is grounded in a specific control problem on a hot mix asphalt plant. None of them assume a fully autonomous plant โ€” the operator stays central in the loop.

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Burner control optimization

Drum-burner setpoints today are tuned by operators based on experience and feel. We're exploring data-driven setpoint suggestions that take into account aggregate moisture, ambient conditions, RAP percentage, and target rate โ€” with the aim of reducing fuel per ton without giving up mix quality. Models would run alongside the existing burner controller as an advisory layer, not as a direct replacement.

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Mix recipe queue & planning

Plants typically run several mixes over a paving day. The order and timing of recipe changes affects silo utilization, asphalt-binder usage, and downtime between mixes. We're prototyping queue-planning tools that look at the day's job list, silo levels, and material availability, and propose a sequence that reduces mix-change loss.

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Energy & emissions modeling

Fuel use per ton, electrical demand, and baghouse pressure trends carry information about overall plant health. We're working on models that turn historian data into shift- and job-level energy summaries, with anomaly flags that point operators at likely causes before they become alarms.

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Maintenance signals from existing data

Most plants already collect more data than they use. We're exploring lightweight predictive-maintenance signals โ€” bearing temperature drift, motor current trends and hours of operation, baghouse ฮ”-P patterns โ€” derived from the data already on the plant historian, without adding new sensors.

Approach

Operator-in-the-loop, not a black box.

A few principles we are committed to in this work, ahead of any specific model or tool:

  • Models suggest, operators decide. Setpoint changes stay in the operator's hands.
  • Predictions come with a confidence indicator and the inputs they depend on.
  • The plant control layer remains a deterministic PLC, programmed against IEC 61131-3.
  • ML and AI components run alongside, not inside, the safety-critical control loop.
  • Data sovereignty: client data stays with the client unless explicitly shared.
  • Plain-language reporting โ€” results have to make sense to a plant manager, not just a data scientist.
Tooling we use

Standards-aware, modern stack.

A pragmatic mix of industrial and ML tooling:

SQL Server / ExpressPlant historian, on-prem
OPC UA, MQTTVendor-neutral data link
PythonData analysis & modeling
PyTorch / Scikit-learnML model development
AWS, AZURECloud training & KPI back-end
IEC 61131-3PLC code structure
ISA-101HMI design
ISA-18.2Alarm management
Canadian SME context

A small Canadian engineering business doing applied R&D.

GA Engineering Inc. is a Canadian-incorporated small enterprise based in Vancouver, British Columbia. The principal is a Professional Engineer registered with Engineers and Geoscientists of British Columbia (EGBC). Our service work pays the bills today; the R&D direction described on this page is what we believe will keep Canadian asphalt plant automation competitive in the next decades.

If you are a producer, OEM, researcher, or program officer focused on advancing industrial AI/ML applications within heavy industry, we would welcome the opportunity to connect and discuss potential synergies.

Outcomes we're aiming at:

  • Lower fuel use per ton of mix produced
  • Shorter mix-change downtime
  • Reduced waste on startup and shutdown
  • Earlier detection of mechanical issues
  • Plain-language KPI reporting for plant managers
  • Productivity and sustainability gains across asphalt plants in North America and globally
Who we want to talk to

If any of this overlaps with what you do.

Plant operators

Producers willing to share anonymized historian data in exchange for early access to tools and findings. Even a single plant's full season of data is useful at this stage.

OEMs & integrators

Burner, controls, and plant OEMs who would like to see an open advisory layer alongside their existing automation platforms, rather than against them.

Researchers & programs

Academic groups, applied research centres, and innovation programs interested in industrial AI / ML applied to a heavy-industry use case.

Interested in the R&D direction?

Whether you're a producer, an OEM, a researcher, or a government program officer โ€” we'd be glad to talk.

Get in touch