Question

An available stock fiter sand has the following sieve analysis: Table 2: stock fiter sand Size, mm Cumulative weight, % 0.13 2.5 52.0 63.0 84.0 93.0 97.0 100.0 3.36 4.34 a. Determine the geometric mean size, the geometric standard deviation, the effective size and the uniformity coefficient for the stock sand. b. It is desire to produce from this sand with an effective size of 0.6 mm and uniformity coefficient of 1.5. What U.S. Standard sieve size would be used to eliminate the excess coarse and the fine materials? Table 3: U.S. Sieve Series Sieve No. Size of Opening (mm) 0.074 0.105 0.149 0.210 0.297 0.42 0.59 3.36 4.76 Approximately the number of meshes per inch c. the material remaining after sieving is placed in the filter, determine the weight of stock and required to produce 100 kg of Siter sand. d. Plot the distribution of the prepared sand on log-probability paper. Check this plot for conformity with the specified effective size and uniformity coefficient.

Answer 1

to

Cumulative 013 Size 0113 015 013 0.42 0:59 0.84 Actuelt 013 2:2 5.5 1.3 1.254 0.94 0.722 33 52 12 - 63 84 93 21 م ه 1.68 2.38 3.36 4.34 0.462 0:43 0.0049 0:1681 1-232 4.368 9:42 Loo كا بيع Mean: Edini a 127.559 Loo 1.27 mm I Std deviction - s (min)² - 190.78 = 0.952 100 Effective sine Dion) 0.3-0.42 f-17 a 0.3-2 8-10 Dio a 0.326mm Doa) 0.84 -112 a 0.8e-n lilmm .-63 52-60 Cu & Doa Tbi Cusles, Dio 2016, Doo Door O'6x15 Coro = 0.9mm] Scanned with CamScanner CS Scanned with CamScanner