? Continuing our report on the heat duct tunnel construction from March 10th:

With the help of our newest workshop participants, the construction crew has already poured the next section of the heat duct tunnel. In this photo, the crew prepares the formwork for footings to support future wall sections.

? Here is a view of the preliminary work from above.

By the next day, the forms were finished and the concrete poured. Not pictured is another small footing at the end of the opposite wall, which was also completed.

? The crew used the small mixer and transferred concrete into wheelbarrows.

? Then they poured the concrete from the wheelbarrow onto a chute positioned above the formwork.

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