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.
[Photo & text: Archive intern Anna Tran, sa]
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.
[Photo & text: Archive intern Anna Tran]
The concrete flowing down the chute was gathered at the bottom into a wheelbarrow to be poured into the formwork.
[Photos & text: Archive intern Anna Tran]
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.
[Photos & text: Archive intern Anna Tran]
Posted by sue on July 17, 2009 1:37:24 PM MST