| Information | |
|---|---|
| has gloss | eng: Trass is the local name of a volcanic tuff occurring in the Eifel, where it is worked for hydraulic mortar. It is a grey or cream-coloured fragmental rock, largely composed of pumiceous dust, and may be regarded as a trachytic tuff. It much resembles the Italian pozzolana and is applied to like purposes. Mixed with lime and sand, or with Portland cement, it is extensively employed for hydraulic work, especially in the Netherlands; while the compact varieties have been used as a building material and as a fire-stone in ovens. Trass was formerly worked extensively in the Brohl valley and is now obtained from the valley of the Nette, near Andernach. |
| lexicalization | eng: Trass |
| instance of | (noun) rock formed from consolidated clay sediments sedimentary rock |
| Meaning | |
|---|---|
| German | |
| has gloss | deu: Trass ist der lokale Name für ein natürliches Puzzolan, das als Zusatzstoff bestimmten Zementen beigemischt wird. |
| lexicalization | deu: Trass |
| Dutch | |
| has gloss | nld: Tras is gebroken en fijngemalen tufsteen. Het is van vulkanische oorsprong en wordt gewonnen in de Eifel. Tras is een natuurlijk gevormde puzzolaanaarde. |
| lexicalization | nld: tras |
| Polish | |
| has gloss | pol: Trass – miejscowa nazwa dla wulkanicznego tufu występującego w rejonie gór Eifel. Jest to skała koloru szarego lub kremowego, ze względu na skład może być uznawana za tuf trachitowy. Zmieszana z wapieniem i piaskiem lub z cementem portlandzkim często używana jest do celów budowlanych. |
| lexicalization | pol: Trass |
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