Here is the completed entrance section of the papercrete wall, with arch, gate, and a concrete slab mosaic.
The gate is made on a chain-link type gate frame covered with hardware cloth and plastered with papercrete. I mixed it with vermiculite. It's still fairly heavy, and the back is "unfinished," so that you can see the hardware cloth, etc. It's like a stage prop.
The wall, of course, is made of papercrete in slip forms over recycled metal fence posts (as discussed in a previous post), then plastered over with more papercrete.
The arch was one of those very light metal arbors purchased some years ago at a Dollar General Store and covered in hardware cloth. I layered it once in a papercrete-vermiculite mixture, then set it in place and simply plastered it with many layers of papercrete.