The structural and industrial materials of California (1906)
Aubury, Lewis E., b. 1862 · Sacramento, W.W. Shannon, Superintendent State printing · leaf 205
ut injury.To mold readily, it should be high in clay base, that is, a fat clay. (2) It should be low in iron, as a light-colored ware is more desirable. (3) It should be free from coarse sand or other coarse material. It isfrequently necessary to remove such material l)y a process of washing,in… … ILL. No. SM. HKill-ciKAliE CALIFORNIA (LAV IKdDrCTS. ■•THltdWN ANHHAXD-MUDKLEl). (Courtesy of Mrs. L. V. Irelaii.) should be fusible enough to vitrify at a moderate temperature, less than2000° F. If the vitrifying point should be too high, the burning wouldbe too expensive. (5) The clay should have…
Building stones · Portland cement · Clay · Mines and mineral resources
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