So during the firing process I heated surrounding flint which shattered but gave revealed lovely shapes and colour. I also wondered about whether it could then be ground and added to clay? Flint and other rock is used in ceramic glazing, perhaps I could make my own?
Well! Either the structure was not built well enough, or moisture got into the clay from the previous days storms or I heated the clay too quickly! A bit disappointed really. However the firing worked in the sense that it did turn to ceramic, without a kiln or a pyrometer. the fragments are interesting too as some of the striations are visible. Time for another plan...?
Sitting here on day two (second firing attempt) thinking about how acrid the smell of coal is as it burns. The taste of itmakes my mouth and lungs sore and it seems to permeate my clothes ad skin. I cant imagine how coal fired indystry workers must have coped with what was thier day to day work. I can remember the 70's an 80's as coal fired homes were slowly being replaced with gas central heating. I remember how the air changed even in that short time. I also remember my gra
I used a fan and a leaf blower to try and increase the heat to reach a bisque ceramic temperature. The firing went quite high last night but I couldn't put the leaf blower on at 3am, so I banked up the fire and continued this morning!
In order to keep the heat in I decided to use a process described by Jim Robison where a jacket of ceramic and cloth is used as a kiln fibre. Cloth is dipped in clay slip and put around the work on a wire framework.
I had been thinking again about the rammed earth idea but also about positive and negative images. I remembered the cross rail digging in london and the machinery and wondered what a piece of work would look like there . Had a go at a visualisation...