You can make these without much trouble. The mixture is called hypertufa. It’s basically a light concrete, roughly\u00a0equal parts Portland cement (for cohesion), coir or sphagnum moss (for texture), and perlite or vermiculite (for volume without weight).\u00a0 Mix with water and pour into greased containers.<\/p>\n
They have to cure for a few days. Then they have to\u00a0be rinsed\u00a0for a couple of weeks to let the lime leach out.<\/p>\n
Rachel,\u00a0Veronica, and Shengnan\u00a0made these. I made them wear dust masks and gloves when handling the cement.<\/p>\n
They do good work.<\/p>\n","protected":false},"excerpt":{"rendered":"
You can make these without much trouble. The mixture is called hypertufa. It’s basically a light concrete, roughly\u00a0equal parts Portland cement (for cohesion), coir or sphagnum moss (for texture), and perlite or vermiculite (for volume without weight).\u00a0 Mix with water and pour into greased containers. They have to cure for a few days. Then they … Continue reading stepping stones<\/span>