Removing the forms involves undoing the through-bolts and pulling them out of the walls leaving a hole all the way through. Some of the wall material is then compacted into these holes and they effectively vanish. We wire-brushed the walls as soon as the forms were stripped. Speed is important, a couple of times we left it over lunch and came back to find it was much much harder to brush because the cement had already gone off. The brushing brings out the texture of the material and (in my opinion) enhances it incredibly, although not all builders do this.
The exposed external walls and wet areas of the bathroom
were treated with Techdry
Waterproofing Agent which makes water literally roll off rather than soak
If I was building another rammed earth house I would be much more adventurous with textures and objects embedded in the walls. At the time we were pretty nervous about the whole thing having had virtually no experience with the medium and having not lived with it. Now I would do things like:
If you have done any of this or have some other ideas, let me know, I'll include them.