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Books Bücher 1 - 6 von 6 in ... brick. The presence of 3 per cent of combined lime, soda, potash, and magnesia...
" ... brick. The presence of 3 per cent of combined lime, soda, potash, and magnesia should be a cause for rejection. The sulphide of iron — pyrites — is even worse than the substances first named. A good fire-clay should contain from 52 to 80 per cent... "
Notes on Building Construction: Materials course for honors - Seite 122
1892
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Economic geology, or Geology in its relations to the arts and manufactures

David Page - 1874 - 336 Seiten
...and occasionally the thicker beds contain a band or bands of stone. A good fire-clay should have a uniform texture, a somewhat greasy feel, and be free from any of the alkaline earths. When properly ground, pugged, and mellowed, it is fit to be worked into any form and to be baked without...
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Notes on building construction [by P.G.L. Smith].

Percy Gaillemard L. Smith - 1879
...not a very safe criterion of its qualities. The silica shown may be either soluble silica influencing the chemical constitution of the clay, or it may be...feel, and be free from any of the alkaline earths." 1 The following TABLE shows the ANALYSES of different CLAYS used for the manufacture of FIREBRICKS...
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Inspection of the Materials and Workmanship Employed in Construction: A ...

Austin Thomas Byrne - 1898 - 539 Seiten
...good fire-clay should contain from 52 'o 80 per cent of silica and 18 to 35 per cent of alumina and have an uniform texture, a somewhat greasy feel, and be free from any of the alkaline earths. Good fire brick should be uniform in size, regular in shape, homogeneous in texture and composition,...
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Masonry construction: a guide to approved American practice in the selection ...

American School of Correspondence, Chicago, Alfred Edward Phillipps, Austin Thomas Byrne - 1907 - 128 Seiten
...fire-clay should contain from 52 to 80 per cent of silica and 18 to 35 per cent of alumina and have a uniform texture, a somewhat greasy feel, and be free from any of the alkaline earths. ^ Good fire brick should be uniform in size, regular in shape, homogeneous in texture and composition,...
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Cyclopedia of architecture, carpentry and building: a general reference work...

American School of Correspondence at Armour Institute of Technology, Chicago - 1907
...fire-clay should contain from 52 to 80 per cent of silica and 18 to 35 per cent of alumina and have a uniform texture, a somewhat greasy feel, and be free from any of the alkaline earths. Good fire brick should be uniform in size, regular in shape, homogeneous in texture and composition,...
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Cyclopedia of Carpentry and Contracting ...: Building superintendence ...

1910
...fire-clay should contain from 52 to SO per cent of silica and 18 to 35 per cent of alumina and have a uniform texture, a somewhat greasy feel, and be free from any of the alkaline earths. Good fire brick should be uniform in si/e, regular in shape, homogeneous in texture and composition,...
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