Burnt and broken: An experimental study of heat fracturing in silcrete

22nd November 2013

Fracture thresholds for  silcrete sets (published in Australian Archaeology 51:43).

Fracture thresholds for silcrete sets (published in Australian Archaeology 51:43).

Alison Mercieca

Introduction*

Heat-induced fracturing of archaeological stone is a worldwide phenomenon, yet it is poorly understood. Not only does confusion surround the common perception of heat fracturing, where it is often confused with heat-treating, but our knowledge of the specific processes responsible for heat fracturing has been retarded by a lack of explicit and controlled experimental investigation. Apart from two North American experimental studies (Purdy 1974, 1975; Patterson 1999, no published and/or widely available experimental data on heat fracturing of archaeological stone material exists.

*Note that an abstract was not included with this paper, and so the introductory paragraph has been included here instead of the abstract.

Mercieca, A.
Burnt and broken: An experimental study of heat fracturing in silcrete
December 2000
51
40–47
Article
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