Casting Day

Casting Day

Today is the busiest day of the Concrete Canoe Club! It is the day where the club actually casts the actual canoe for the competition and one of the few mandatory meetings for members, if they wish to participate in the competition. This process usually takes up an entire day and will require as much help as possible. The members are often splitted up into 3 main teams: mixing, fibres and casting.

The Concrete Leads and the mixing team will ensure that the rest of the team will have a continuous supply of concrete to be cast. Concrete mixes are often pre-measured and proportioned into bags before casting day.

The fibre team is in charge of separating fibres, which significantly helps improve the strength of our concrete, and mixing it into the concrete from the mixing team. Separating fibre is often a tedious task and will require a lot of patients and grit.

After the fibre is added, the concrete is given to the casting team, where they will start placing the concrete into the mold. The casting team is responsible for making sure they are using the right concrete at the right location and layer (please see "Canoe Construction") and also to do quality control of the thickness of the concrete. If the layers are too thin then our canoe would be weak in some areas; but if it is too thick, then it could cause a weight imbalance in certain areas of our canoe and would not look aesthetically pleasing. By the end of the day, once the canoe is fully cast, it is placed in a humidifier tent for the concrete to cure with sufficient moisture, so no cracks are formed in the process.


Each year, the UofT Concrete Canoe design team design, test, and construct our own canoe and pit it against other universities in national competitions.

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