A study of the mortar making qualities of Illinois sands . hegrains are almost globular in shape and nearly transparent. The specific gravity is , the weight per cu. lb., and the percentage of voids • Sample No. 1. (Pig. 1.) This sand isfurnished by the Knickerbocker Ice Co., Chica-go and although reported as a bank sand it isevidently a sand from along the shore of LakeMichigan. It is yellowish in color and iscomposed almost entirely of quartz. A largeproportion of the grains are fairly angular7/ith rather sharp edges. As shown by thesieve analysis (see Plate 1.) this sand i
A study of the mortar making qualities of Illinois sands . hegrains are almost globular in shape and nearly transparent. The specific gravity is , the weight per cu. lb., and the percentage of voids • Sample No. 1. (Pig. 1.) This sand isfurnished by the Knickerbocker Ice Co., Chica-go and although reported as a bank sand it isevidently a sand from along the shore of LakeMichigan. It is yellowish in color and iscomposed almost entirely of quartz. A largeproportion of the grains are fairly angular7/ith rather sharp edges. As shown by thesieve analysis (see Plate 1.) this sand is very fine, ^ pass-ing the sieve and ^ the sieve. There is only ^of suspended matter. The specific gravity is , the weightper cu. ft. lb., and the percentage of voids 36-2 . Sample No. 2. (Fig. 2.) This is a bank sand also of lakeorigin furnished by the Zander-Reum Co., Plasterers, Chicago. Itis light gray in color and is composed principally of quartz witha small proportion of granite, flint, and limestone. The sieve. FIG. 1.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttheses, bookyear1910
