On The Possibility Of Using Vitrified Forts As
Anthropogenic Analogues For Assessment Of
Long-term Behaviour Of Vitrified Waste
Author(s)
R. Sjöblom1, H. Ecke2 & E. Brännvall1
Abstract
An information survey was conducted in the areas of natural analogues, vitrified
forts, combustion technology and vitrified waste. The main purpose was to
identify if vitrified stone material in hillforts might be used as anthropogenic
analogues for glass containing waste. Such comparisons are needed in order for
predictions to be made regarding the long-term integrity of the waste forms. The
scope was to compare the chemistry as well as the processes used for the
generation of the glasses.
It was found that the vitrified forts contain glass material with wide variations
in composition of the major elements. They cover and exceed those in the
glasses made of waste with only the exception of phosphorus. Natural glasses as
well as archaeological glasses show much narrower ranges of compositions, and
they do not coincide with those of the glasses containing waste.
Quality of heat analyses indicated that it is likely that the stone material in the
forts was melted for the purpose of obtaining long-lasting structures. This
narrows the range of possible processes used, and facilitates reconstruction of the
ancient methods by means of testing. This, in turn, provides possibilities of
comparison between ancient and modern methods, which can then be used as a
basis for validation of the use of the analogue.
Keywords: long-term, analogue, vitrification, hillfort, glass, leaching.
1 Introduction
Sustainability implies that waste is recycled as far as is reasonably achievable,
and that the residues that cannot be used are landfilled in such a way that no
Keywords
long-term, analogue, vitrification, hillfort, glass, leaching.
Related Book
Other papers in this volume
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