British Columbia Institute of

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TSYH 3221 - Aggregates Part 2: Production and Quality Control

Transystems Part-time Studies Course

School of Construction and the Environment

BCIT is planning for a substantial return to on-campus activity for the fall 2021 term as informed by BC Public Health Officer guidelines. Refer to each course listing for details.

Course Details

Compares the operations and capabilities of different types of crushing plants: jaw crushers, roll crushers, cone crushers, impact crushers, tandem crushing units. Topics include screening capacities; calculated output; the ability of production systems to meet aggregate requirements; quality control inspection procedures; methods of correcting gradation defects resulting from production/stockpiling; the need for safety in all aspects of production.





Fall 2021

Below is one offering of this course for the Fall 2021 term.

CRN 30921

Start any time

This is a distance learning course. Start any time. You have 52 weeks from the date you register to complete this course.



Course Outline

TBD – see Learning Outcomes in the interim




  1. Correspondence format.
  2. Please note that the above price is for tuition only; textbooks (if required) are additional. Course materials are available in the Learning Hub: Textbooks are not shipped automatically, please order them from the BCIT Bookstore: Civil Technology PTS Department:
  3. Important course information will be sent to you immediately after registering. Check your myBCIT email account to access this information.

Learning Outcomes

Upon successful completion, the student will be able to:

Module 1 - Crushing and Reduction Equipment

  • Discuss the purpose of crushing aggregates.
  • Discuss the functions and categories of crushers and the stages in the crushing process.
  • Identify the five types of crushers and explain the advantages and disadvantages of each.
  • Determine the production rates of various crushers and select the appropriate equipment given the job requirements.

Module 2 - Screening Equipment

  • Describe the purpose for the screening plant.
  • Recommend the screen sizes required for various aggregate products.
  • Describe the various types of screen assemblies and screen meshes.
  • Describe the washing and sorting of aggregates through the use of screen decks.
  • Calculate the capacities of each deck given the initial feed rate and the details of the screening deck.
  • Determine the sizes of screen deck assemblies and the required screens for production of given material size requirements.

Module 3 - Washing and Classifying Equipment

  • Describe the procedures used to wash and sort fine aggregates and discuss the operation of each equipment type.
  • Explain the process by which a sand classifier produces sand to project specifications.
  • Compare types of washing and classification equipment and recommend the appropriate equipment for job specifications.

Module 4 - Ancillary Handling Equipment

  • Discuss the types and purposes of the various aggregate feeder systems.
  • Define the components of conveyor systems and discuss the operation and adjustment of these systems.
  • Identify the components of a conveyor scale system and discuss the requirements for scale calibration.
  • Identify and explain the use of stakers and surge systems in the transfer and storage of aggregates.

Module 5 - Stockpiling Aggregates

  • Explain three methods of stockpiling aggregates.
  • Recognize the potential dangers of stockpile segregation and recommend procedures to eliminate these dangers.
  • Compute stockpile quantities given the appropriate data.

Module 6 - Development of Aggregate Resources

  • State and discuss the steps taken for aggregate source investigation.
  • Analyze a gravel prospect report and make recommendations on the method and type of processing equipment required to meet project aggregate specifications.
  • State and describe the steps required in source development and the factors to be considered in the phases of establishing an aggregate source.
  • Recommend the selection of processing methods for the aggregate based on the characteristics of the deposit.

Module 7 - Quality Control

  • Identify and define the role of an inspector and the various inspector/producer relationships.
  • State and define the role of the inspector in aggregate production.
  • Employ standard sampling procedures as they apply to aggregate production.
  • Identify the key areas of the aggregate process plant where sampling should take place.
  • Record the daily production data on standard recording forms.
  • Describe the general procedures for standard aggregate tests.

Module 8 - Introduction to Economics

  • State and define the basic elements and types of contracts relative to aggregates.
  • State and define the basic types of estimates.
  • Identify the components of a bid price calculation and discuss the relationship of each to the bid.

Effective as of Fall 2003

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