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trass

n. 火山土

火山土

The Collaborative International Dictionary of English v.0.48 (gcide)

Trass \Trass\, n. [D. tras or Gr. trass, probably fr. It.
terrazzo terrace. See {Terrace}.] (Geol.)
A white to gray volcanic tufa, formed of decomposed trachytic
cinders; -- sometimes used as a cement. Hence, a coarse sort
of plaster or mortar, durable in water, and used to line
cisterns and other reservoirs of water. [Formerly written
also {tarras}, {tarrace}, {terras}.]
[1913 Webster]

Note: The Dutch trass is made by burning and grinding a soft
grayish rock found on the lower Rhine.
[1913 Webster]

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What Is TRASS? - ROMEX
What Is Trass? The Geology Behind the Material Trass is a naturally occurring mineral celebrated for its pozzolanic properties — meaning it reacts chemically with cement to produce a stronger, denser, more durable mortar matrix But not all Trass is created equal, and the source matters enormously
Trass - Wikipedia
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
TRASS Definition Meaning - Merriam-Webster
The meaning of TRASS is a light-colored volcanic tuff resembling pozzolana in composition and occurring especially on the lower Rhine where it is ground for use in a hydraulic cement
Trass Bedding | Install Guide
FREE GUIDE " When, Where, and How Should You Use Trass Bedding??" In this video, we discuss: The key benefits of trass bedding (drainage, strength, and speed!) How trass bedding compares to traditional open-graded base methods Proper base prep and setting bed thickness Step-by-step install process — including moisture control tips
Trass – Knowledge and References – Taylor Francis
Trass is a type of rock that is pale yellowish to grayish in color and has a rough texture It is composed of a mixture of earthy or compact pumiceous dust and fragments of pumice, trachyte, carbonized wood, and other materials
TRASS definition and meaning | Collins English Dictionary
Definition of 'trass' trass in British English (træs ) noun a variety of the volcanic rock tuff, used to make a hydraulic cement
What does TRASS mean? - Definitions. net
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
Chemistry:Trass - HandWiki
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
trass - Wiktionary, the free dictionary
Noun trass (countable and uncountable, plural trasses) (geology) A white to grey volcanic tufa, formed of decomposed trachytic cinders, sometimes used as a cement A coarse sort of plaster or mortar, durable in water, and used to line cisterns and other reservoirs of water
Trass — definition quiz | Ultimate Lexicon
Trass is a type of volcanic ash or tuff that is typically gray to brown in color This fine-grained material is renowned for its use in building and construction, particularly as a component in hydraulic cement, which can set in water

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