Evaluation of some Italian tuffs as compatible replacement stone for Römer tuff in the Netherlands
van Hees, R.P.J.
Rhenish tuffs from the volcanic Eifel region, Germany, are amongst the most prominent and voluminous natural stones in Dutch monuments. In particular, tuffs from the 11,900 bp Laacher See eruption have been used since Roman times, - hence the name Römer tuff-, and were widely used again in romanesque (and to lesser extent romanogothic and early gothic) architecture. The limited (or non) availability of Römer tuff for restoration purposes is posing an increasing problem. Last decennia, the availability of Römer tuff was practically limited to blocks from the lower parts of the pyroclastic flows, with abundant basalt (and other) xenoliths, giving the rock a different appearance from the traditional one; both kinds of Römer tuff also show different physical and hygric properties
To reference this document use:
Geophysical Research Abstracts, 9, 2