% The following is the sieve analysis of aggregates, compute 3. A.S.S 4. State the type of aggregate 1. M.A.S 2. F.M. Sieve 1½ 1 size % Cumulative Passing 100 89 67 440 60 60 53 33 No. 4 40 40 No. 8 No.16 No.30 No.50 No.100 28 23 17 17 3 2

Graph given values

A sample of a dry course-grained material of 500 grams was shaken through a nest of sieves and the following results are obtained: Sieve No. Opening (mm) 4.75 Mas Retained (grams) 0.0 14.8 4 10 2.00 20 0.85 98.0 40 0.425 90.1 100 0.15 181.9 200 0.075 108.8 Pan 6.4 1. Determine the effective size (mm). 2. Determine the uniformity coefficient. 3. Determine the coefficient of curvature.

"A sieve analysis test was performed on a sample of fine aggregate and produced the following results:Sieve, mm 4.75 2.36 2.00 1.18 0.60 0.30 0.15 0.075 pan.Amount retained, g 0 33.2 56.9 83.1 151.4 40.4 72.0 58.3 15.6 .Calculate the percent passing each sieve, and draw a 0.45 power gradation chart with the use of a spreadsheet program. The specific steps or functions selected in the following description can vary somewhat depending on the version of the spreadsheet program being used.Calculate the fineness modulus of the sieve analysis results of Sample Problem

A sieve analysis test was performed on a sample of fine aggregate and produced the following results:Sieve, mm   4.75 2.36 2.00 1.18 0.60 0.30 0.15 0.075 panAmount retained, g 0 33.2 56.9 83.1 151.4 40.4 72.0 58.3 15.6Calculate the percent passing each sieve, and draw a 0.45 power gradation chart with the use of a spreadsheet program. The specific steps or functions selected in the following description can vary somewhat depending on the version of the spreadsheet program being used.

(C).Workout flakiness & elongation index from the following Flakiness Index Weights of aggregates passing through corresponding slot=w2=200 grams Weight of aggregates retained on a particular sieve =w1=700 grams Workout flakiness index? Elongation Index Weights of aggregates Retained on gauge length =w2=190 grams Weight of aggregates retained on a particular sieve =w1=540 grams Workout elongation index? Are these flakiness & elongation index within permissible range? Also mention bad effects of greater amount of flaky & elongated particles.

Three samples of aggregates were taken weighed in moist and dry condition. Moist Dry Unit Absorption Volume (m3) Unit Aggregate Wt. Wt. (%) (kN/m3) (kN/m3) Sample 1 23.425 20.018 5.14 0.366 Sample 2 22.7 18.757 3.87 0.695 Sample 3 20.292 18.387 2.62 0.237 Where; Unit weight of water = 9.81 kN/m3 %3D Determine the average free moisture content of the three samples.

Compute the mass fraction of a ferrite and cementite in pearlite. Comcenton ark o 1400 -250e 1200 214 4.30 Austenite 1000 RO 1500 227 0.76 3.002 G00 Festa Denert e 100 400 "C 630 Corpositen ws C 2 edu

Two materials, A and B, are to be separated using two unit operations, 1 and 2. The feed has 10 tons/h A and 4 tons/h B. The split (fraction of material rejected by each operation) is given in Table P5-14. a. Which sequence of operations, (l?2) or (2?1), will yield the greatest recovery of material A? b. What will be the purity of material A using that sequence? c. What will be the efficiency of separation for the entire process train with regard to material A using the Worrell-Stesed equation?

Three samples of aggregates were taken weighed in moist and dry condition. Moist Dry Unit Unit Absorption Volume Aggregate Wt. Wt. (%) (m³) (kN/m) (kN/m³) Sample 1 23.425 20.018 5.14 0.366 Sample 2 22.7 18.757 3.87 0.695 Sample 3 20.292 18.387 2.62 0.237 Where; Unit weight of water = 9.81 kN/m3 Determine the average free moisture content of the three samples.