The structural and industrial materials of California (1906)
Aubury, Lewis E., 1862- · Sacramento, W. W. Shannon, Superintendent state printing · leaf 205
hout 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 by a process of washing,in… … ILL. No. !^.s. HIGH-GRADE CALIFORNIA CLAY PRODUCTS, THROWN ANDHAND-MODELED. (Courtesy of Mrs. L. V. Irelan.) 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 a…
Building stones · Portland cement · Clay · Mines and mineral resources
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