Re: Sculpting with cement
Yes, I did know about plaster, melting, in the rain over time. I use plaster for mother molds. I was using plastipaste but it is so expensive.
I have heard that, like you say, plaster added will set up faster. I have tried many ways. It seems depending on the application and size, one can mix cement in most any ratio, to many aggregates or sand or perlite etc. As long as I let it set long enough, it is fairly strong.
Do you think it is necessary to weld the rebar or just tie it on say something about 8 feet tall.