? This continues the report from 7/15/09.
The formwork has been completed for a footing for the next section of the heat duct tunnel.
Construction staff, volunteers and workshop participants are mixing concrete for their first pour in this location.


? Here we see the initial process of mixing the concrete and using a wheel barrow to transport the liquid material to a chute to be delivered down to the tunnel entrance.


? The concrete flowing down the chute was gathered at the bottom into a wheelbarrow to be poured into the formwork.


? The liquid material was evenly spread into the form and distributed using rakes and trowels.
Three yards of concrete were mixed in nine batches.

This report continues next week.


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