Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A light-colored tuff used in hydraulic cement.
from The Century Dictionary.
- noun An earthy or more or less compact rock, made up in large part of firmly comminuted pumice or other volcanic material.
from the GNU version of the Collaborative International Dictionary of English.
- noun (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.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun geology A white to grey
volcanic tufa , formed of decomposedtrachytic cinders , sometimes used as acement . - noun A coarse sort of
plaster ormortar , durable in water, and used to linecisterns and otherreservoirs of water.
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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He proposed to neutralise this action by adding to the mortar materials rich in silica, such as trass, which would combine with the lime.
The Sewerage of Sea Coast Towns Henry C. Adams 1912
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In Indonesia, the introduction of lime-trass binder using labour-intensive, small-scale technologies has proved beneficial to the needs of the low-income population.
Chapter 4 1989
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· Wood waste, mixed with inorganic materials (cement, trass, lime, pozzolana) in a mixer/pulper machine, produce pulp cement boards for various non-loadbearing uses.
Chapter 4 1988
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Pozzolana (trass) deposits in Bujumbura area estimated at 1 million tons.
Chapter 9 1985
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The deposit at Lembang, near Bandung, has, for many years, been used as a raw material for the manufacture of lime-trass blocks. f/The mixture used is 20 per cent lime and 80 per cent trass, no additional aggregate being added because of the coarse content of the trass.
Chapter 9 1985
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There are many deposits of natural volcanic pozzolana or trass in Java, which, when mixed with locally produced lime, gives a hydraulic cement.
Chapter 9 1985
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P. pair trawl chalut-boeuf arrastre de pareja panel (of net) face (de filet) pao patent link pelagic trawl, see midwater trawl maillon brevet eslabn de patente pennant rapporteur amante plaited trass trenzado
Chapter 5 1983
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The lime-trass grout does not give the same trouble.
Concrete Construction Methods and Costs Halbert Powers Gillette
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In experiment No. 2, under the same conditions, a grout made of 1 part lime, 1 part surki (puzzulana or trass) and 1 part sand, was found to have spread over the entire bottom, 10 ft. square, rising 5 ins. on the sides, and making the concreted mass about 3½ ft. square at the top; 25 cu.ft. of the dry materials concreted 100 cu.ft. of ballast.
Concrete Construction Methods and Costs Halbert Powers Gillette
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Mixing very finely-ground silica, or trass, with the cement proved an advantage where a weak mixture was employed, but in the other cases no benefit was observed.
The Sewerage of Sea Coast Towns Henry C. Adams 1912
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