Kansas Clay - Cone 06-04 Earthenware White
|Wet to Dry Shrinkage||2.83%||3.7%|
|Overall Shrinkage||5.75%||6.1% |
- Beginning weights in grams were recorded
- Lines and weights were measured & recorded when bone dry
- The samples were fired to Cone 04
- Lines and weights were measured & recorded again
- The flat tiles were then soaked in hot water for 1 1/2 hours, then weighed again
- Math magic was then done to calculate the average shrinkage wet-dry and average shrinkage overall for both flat and thrown tests, and the average water absorption was calculated based on the flat bars.
- We also figured the "LOI" (Loss on Ignition) by computing the fired weight against the bone dry weight. This tells us what percent of organics burn off in the firing.
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