The structural and industrial materials of California (1906)
Aubury, Lewis E., b. 1862 · Sacramento, W.W. Shannon, Superintendent State printing · leaf 241
clay contains gravel or other nodular substancesthat nuist !»(> rciuoviMl or ])ulverized before the clay is in condition formanufacturing purposes. Hand-made Brick is a liand-iuolded ))rick, generally sun-dried andburned in open kilns. This primitive metliod of manufacture is nowonly used in… … ILL. No. 105. POTTS I)ISIXTK(; i;.\T( )i:. 1)V the stiff-mud ])rocess; and the hiuh-^rade front l)rick bv the drv-process or the semi-dry process. The soft-mud process is adapted to tiie highly siliceous clays thatcan not be worked satisfactorily by the other methods, as well as to anyplastic clays…
Building stones · Portland cement · Clay · Mines and mineral resources
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