Application of thermal analysis in preservation and restoration of historic masonry materials

Brosnan, Denis A.; Sanders, J.P.; Stroble, R.

doi:10.1007/s10973-013-3195-z

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…For a given firing temperature, this is greater in pottery made from non‐calcareous clays than calcareous clays because the meta‐clays survive to higher temperatures in the absence of lime. Thermal analysis also shows signs of RHX in 19th century brick from historic sites in Charleston, SC, and in pottery of similar age from Utah . In addition, there is evidence that the glassy component of high‐fired ceramics can react with water to produce neoformed hydrous minerals, including clays.…”

Section: Archaeological Aspects Of Rhxmentioning

confidence: 94%

A Review of Rehydroxylation in Fired‐Clay Ceramics

Hamilton

2012

J. Am. Ceram. Soc.

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Understanding the hygral reactivity of ceramic materials is essential to understanding the long‐term behavior of building materials and of archeological pottery, especially in relation to dating. We explore the literature on the expansion of fired‐clay ceramics, reviewing strain and mass measurements at the bulk scale, and rehydroxylation (RHX) and dehydroxylation (DHX) processes in clay minerals at the molecular level. We present open questions on the nature of ceramic rehydroxylation and its apparent adherence to a sub‐diffusive kinetic (time)1/4 power law. We discuss measurement of the RHX process through mass gain in relation to a proposed new dating method for archaeological ceramics.

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Section: Archaeological Aspects Of Rhxmentioning

confidence: 94%