[[wiki-architecture]] · [[Building Materials]] · [[ARCHITECTURE]] · [[000]] # Trass 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. == See also == Pozzolan Pozzolana Pozzolanic reaction Pumice == References == - [[Building Services/Building Automation]] - [[Design/Architectural Design/Design Process]] - [[Professional Practice/Ethics and Professional Conduct]] - [[Building Services/Electrical Systems]] - [[Urban and Planning/Urban Design]] - [[Design/Building Typologies/Commercial Architecture]] - [[Professional Practice/Codes & Standards/National Building Code of India/Part 06 - Structural Design/Section 2 - Soils and Foundations]] - [[History and Theory/World History/Contemporary Architecture]] - [[Professional Practice/Codes & Standards/National Building Code of India/Part 10 - Landscape and Signs/Section 1 - Landscape Planning]] - [[Environmental Design/Climate Responsive Design]]