This morning, we mixed up 3 bags of cement and 18 buckets of ballast and
poured the lot into the open area we had all stuttered and ready. This slab
will form the base for building the tunnel from the Earth Tube Mixing
Chamber to connect to the house, thus bringing in fresh air from under the
garage via the collection of large 6inch diameter tubes!
Earth-Tube-Tunnel-Concrete-laid
After lunch, we will smooth it off and cover with plastic sheeting to keep
it moist against the hot Sun and dry weather we got at the moment.