1. 820 g sample of sand was found to have the following amounts retained on each sieve. 630 μm 315 µm 160 μm 165 g 194 g 133 g 5 mm 40 g 2.5 mm 105 g 1.25 mm 173 g a) Calculate its fineness modulus b) Plot is particle size distribution c) Compare the distribution with the grading requirements for fine aggregates (based on CSA)

1. 820 g sample of sand was found to have the following amounts retained on each sieve. 630 μm 315 µm 160 μm 165 g 194 g 133 g 5 mm 40 g 2.5 mm 105 g 1.25 mm 173 g a) Calculate its fineness modulus b) Plot is particle size distribution c) Compare the distribution with the grading requirements for fine aggregates (based on CSA)

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter2: Origin Of Soil And Grain Size

Section: Chapter Questions

Problem 2.1CTP: Three groups of students from the Geotechnical Engineering class collected soil-aggregate samples...

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Three groups of students from the Geotechnical Engineering class collected soil-aggregate samples for laboratory testing from a recycled aggregate processing plant in Palm Beach County, Florida. Three samples, denoted by Soil A, Soil B, and Soil C, were collected from three locations of the aggregate stockpile, and sieve analyses were conducted (see Figure 2.35). (a) (b) Figure 2.35 (a) Soil-aggregate stockpile; (b) sieve analysis (Courtesy of Khaled Sobhan, Florida Atlantic University, Boca Raton, Florida) a. Determine the coefficient of uniformity and the coefficient of gradation for Soils A, B, and C. b. Which one is coarser: Soil A or Soil C? Justify your answer. c. Although the soils are obtained from the same stockpile, why are the curves so different? (Hint: Comment on particle segregation and representative field sampling.) d. Determine the percentages of gravel, sand and fines according to Unified Soil Classification System.
A sieve analysis was performed in the laboratory to know the gradation of the coarse aggregates. From the data gathered below, determine the % passing in each sieve. Initial Sample weight : 2500g Sieve Size wt. retained Sieve size wt. retained
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The following are the results of a sieve analysis: Sieve size Weight Retained 9.5mm 0 4.75mm 86g 2.36mm 379g 1.18mm 595g Pan 440g Determine the percent finer than each sieve and plot a grain-size distribution curve. Determine D10, D30 and D60 from the grain-size distribution curve.
An aggregate sample has a compacted dry unit weight of 1615 kg/m3 and a dry specific gravity of 2.15 If this aggregate is placed in a container and compacted with the same procedure used in the determination of compacted unit weight, what will be the amount of pores, in percent of the container volume, between the aggregate particles? (density of water = 1000 kg/m3)
The following are the results of a sieve analysis: a. Determine the percent finer than each sieve and plot a grain-size distribution curve. b. Determine D10, D30, and D60 from the grain-size distribution curve. c. Calculate the uniformity coefficient, Cu. d. Calculate the coefficient of gradation, Cc. e. Plot the particle-size distribution curve
The following are the results of a sieve analysis: Sieve size Weight Retained 9.5mm 0 4.75mm 86g 2.36mm 379g 1.18mm 595g Pan 440g a. Determine the percent finer than each sieve and plot a grain-size distribution curve. b. Determine D10, D30 and D60 from the grain-size distribution curve. c. Calculate the uniformity coefficient (Cu) and the coefficient of gradation (Cc). Note - Please dont answer using chegg answers
Determine Admixtures in ml/m3 Fine aggregate requirements (dry), in kg/m3 Net Water Content, in kg/m3
The following are the results of a sieve analysis: a. Determine the percent finer than each sieve and plot a grain-size distributioncurve. b. Determine D10, D30, and D60from the grain-size distribution curve. c. Calculate the Cu and Cc Please kindly solve a, b and c... Help me urgent Thank you
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Oxide composition of 4 portland cement samples is given in the following table. Show all of your work for the following questions. a) Which cement is more suitable for early strength? Why? b) Which cement is more suitable for sulfate attack? Why? c) Which cement is more suitable for cold weather? Why? d) Which cement seems to be stored better? Why? PC 1 PC 2 PC 3 PC 4 CaO, % 61.6 62 61.6 61.9 SiO2, % 21.7 20.7 21.7 20.6 Al2O3, % 6 6.1 5.4 6.1 Fe2O3, % 2.4 1.8 2.8 1.9 MgO, % 2.6 5.3 2.4 2.9 SO3, % 2.1 2 2.1 2 K2O, % 0.5 0.6 0.8 0.9 Na2O, % 0.1 0.1 0.1 0.5 Loss on Ignition, % 0.8 1 1.2 1 Insoluble residue, % 1.5 0.9 0.8 0.9
Show complete solution. Coarse aggregate is placed in a rigid bucket and rodded with a tamping rod to determine its unit weight. The following data are obtained: Volume of bucket = 9.3 Liters Mass of empty bucket = 9 kg Mass of bucket filled with dry-rodded coarse aggregate: Trial 1 = 30.25 kg Trial 2 = 29.76 kg Trial 3 = 31.12 kg a. Calculate the individual dry-rodded unit weight for each trial and the average dry-rodded unit weight of all trials. b. If the bulk dry specific gravity of the aggregate is 2.65, calculate the percent voids between aggregates particles for each trial and the average percent voids of all trials.