The structural and industrial materials of California (1906)
Aubury, Lewis E., 1862- · Sacramento, W. W. Shannon, Superintendent state printing · leaf 241
ome instances clay contains gravel or other nodular siil)stancesthat must he removed or pulverized before the clay is in condition formanufacturing purposes. Hand-made Brick is a hand-molded brick, generally sun-dried andburned in open kilns. This primitive method of manufacture is nowonlv used in… … ILL. No. 105. POTTS DISINTEGRATOR. by the stiff-nuid process-; and the high-grade front l)rick by the dry-process or the semi-dry process. The soft-mud process is adapted to the highly siliceous clays thatcan not be worked satisfactorily by the other methods, as well as to anyplastic clays that can…
Building stones · Portland cement · Clay · Mines and mineral resources
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