Yesterday we raised the North wall another 12" (we do small raises because we are geezers)
Here is a slide show of the work we did.
greenhouse2
In the last slideshow we showed the forms ready to be installed, with sugar syrup coating.
First pic shows the forms in place and the top one filled, the lower one was filled a few days before, but is reinstalled to hold mortar from dropping right out of the form.
Then you can see the new raise rock & mortar, the way it looks when the form comes off (about 1.5 hours after it is filled).
Then pics of swmbo cleaning off the mortar. showing pretty much what the wall will look like.
The sugar to retard the mortar setting is a really big deal, we were unable to find any reference to retarding the mortar when slip forming rock walls, the only reference we could find was for coatings applied to forms so that the concrete could be washed away for exposed aggregate.
We did the first raise with no sugar retarder, cleaning up was a real bear & took two of us a number of hours. with the sugar we did the clean up easily in an hour, without killing ourselves. The sugar is a real real help.
sorry that I do not seem to be able to post pics the slide show will have to do.
Tony.