Cob: pipes under the floor

[Darel Henman]

I've seen the pipes embedded in a rammed earthen floor
(clay-gravel-sandy soil + lime).   Also I know that Koreans in their
very cold climates do this as well and have been for probably hundreds
of years.  At the temperatures you are talking about cob should do
well.  I'd still tamp it down and under the pipes and knock out all
air.   People use cob to enclose pipes for heating benches as well.  So
there is precedence in its viability.

Darel

Yun Que wrote:
> 
>.......... snipped
> The sand bed
> was a little scary too since it will have to be very compact and level
> for the block, .......
>  Any thoughts maybe cob all around and forget the
> sand and use a level and get it right??  ...
>