The effect of the size of grog in fire-clay bodies. . O 2 **• & 8 IO 12 14 16 18 SO & SURFACE FACTOR OF GfcOGFig. 27.—Relation between surf ace factor and modulus of rupture 34 Technologic Papers of the Bureau of Standards 6000 5000 &4QOO 3000 idG> H2O0Oc. a b.°10Q0 SM • 5N ,51. 50 • 5K *S^ 5J« • SS s f * •5D^ ^5B • 5A 0 2 4- 6 8 10 SURFACE FACTOR OF 12 14 16 16 20 - et Fig. 28.—Relation between surf ace factor and modulus of rupture. & 8 10 isT i+ 16SURFACE FACTOR OF GROG Fig. 29.—Relation between surface factor and results of quenching tests Size of Grog in Fire-Clay Bodies TABLE S
The effect of the size of grog in fire-clay bodies. . O 2 **• & 8 IO 12 14 16 18 SO & SURFACE FACTOR OF GfcOGFig. 27.—Relation between surf ace factor and modulus of rupture 34 Technologic Papers of the Bureau of Standards 6000 5000 &4QOO 3000 idG> H2O0Oc. a b.°10Q0 SM • 5N ,51. 50 • 5K *S^ 5J« • SS s f * •5D^ ^5B • 5A 0 2 4- 6 8 10 SURFACE FACTOR OF 12 14 16 16 20 - et Fig. 28.—Relation between surf ace factor and modulus of rupture. & 8 10 isT i+ 16SURFACE FACTOR OF GROG Fig. 29.—Relation between surface factor and results of quenching tests Size of Grog in Fire-Clay Bodies TABLE S Number of Quenching Treatments Withstood from Temperature of 1000° C 35 Series 1 Series 2 Series 3 Series 4 Series 5 8 11 10 8 12 9 10 10 5 4 11 10 10 8 5 12 10 9 7 3 12 9 10 5 3 12 11 9 5 3 10 8 8 3 2 12 11 10 5 2 11 10 9 7 3 14 9 4 4 2 13 10 4 5 2 12 12 6 4 3 10 8 5 2 2 10 9 7 3 2 10 10 8 4 2 11 10 8 5 3 Series 6 TABLE 9Volume Shrinkage of Bodies, in Per Cent of Burned Volume, Burned to Cone 12 Series 1 Series 2 Series 3 Series 4 Series 5 Series 6 Series 7 A „
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